TS486供应商报价哪里找芯片批发报价原理和应用中文资料-中国IC网-芯三七

TS486

TS487

100mW STEREO HEADPHONE AMPLIFIER WITH STANDBY

MODE

■ OPERATING FROM Vcc=2V to 5.5V

■ STANDBY MODE ACTIVE LOW (TS486) or

HIGH (TS487)

PIN CONNECTIONS (top view)

TS486IDT: SO8, TS486IST, TS486-1IST,

TS486-2IST, TS486-4IST: MiniSO8

■ OUTPUT POWER: 102mW @5V, 38mW

@3.3V into 16Ω with 0.1% THD+N max (1kHz)

■ LOW CURRENT CONSUMPTION: 2.5mA max

■ High Signal-to-Noise ratio: 103dB(A) at 5V

■ High Crosstalk immunity: 83dB (F=1kHz)

■ PSRR: 58 dB (F=1kHz), inputs grounded

■ ON/OFF click reduction circuitry

1

2

3

4

8

7

6

5

VCC

OUT (1)

OUT (2)

VIN (2)

VIN (1)

BYPASS

■ Unity-Gain Stable

GND

SHUTDOWN

■ SHORT CIRCUIT LIMITATION

■Available in SO8, MiniSO8 & DFN 3x3mm

DESCRIPTION

The TS486/7 is a dual audio power amplifier capa-

ble of driving, in single-ended mode, either a 16 or

a 32Ω stereo headset.

TS486-IQT, TS486-1IQT, TS486-2IQT, TS486-4IQT:

DFN8

Capable of descending to low voltages, it delivers

up to 90mW per channel (into 16Ω loads) of con-

tinuous average power with 0.3% THD+N in the

audio bandwitdth from a 5V power supply.

An externally-controlled standby mode reduces

the supply current to 10nA (typ.). The unity gain

stable TS486/7 can be configured by external

gain-setting resistors or used in a fixed gain ver-

sion.

1

2

3

4

OUT (1)

8

7

6

5

Vcc

VIN (1)

OUT ⁽²⁾

VIN (2)

BYPASS

GND

SHUTDOWN

TS487IDT: SO8, TS487IST, TS487-1IST,

TS487-2IST, TS487-4IST: MiniSO8

APPLICATIONS

■Headphone Amplifier

■ Mobile phone, PDA, computer motherboard

■ High end TV, portable audio player

1

2

3

4

8

7

6

5

VCC

OUT (1)

OUT (2)

VIN (1)

BYPASS

VIN (2)

ORDER CODE

SHUTDOWN

GND

Package

Part

Number

Temperature

Range: I

Gain Marking

D

S

Q

TS486

•

external TS486I

external TS487I

external K86A

TS487-IQT,

TS487-1IQT, TS487-2IQT, TS487-4IQT: DFN8

TS487

TS486

•

TS486-1

TS486-2

TS486-4

TS487

tba tba x1/0dB

tba tba x2/6dB

K86B

K86C

1

2

3

4

OUT (1)

8

7

6

5

Vcc

-40, +85°C

tba tba x4/12dB K86D

external K87A

VIN (1)

OUT ⁽²⁾

VIN (2)

BYPASS

•

GND

SHUTDOWN

TS487-1

TS487-2

TS487-4

tba tba x1/0dB

tba tba x2/6dB

K87B

K87C

tba tba x4/12dB K87D

MiniSO & DFN only available in Tape & Reel with T suffix,

SO is available in Tube (D) and in Tape & Reel (DT)

June 2003

1/31

TS486-TS487

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

1)

V

6

V

Supply voltage

CC

V

-0.3v to V_CC+0.3v

-65 to +150

150

Input Voltage

i

T

Storage Temperature

°C

stg

T

Maximum Junction Temperature

j

Thermal Resistance Junction to Ambient

R

°C/W

thja

SO8

MiniSO8

DFN8

175

215

70

2)

Power Dissipation

0.71

0.58

1.79

SO8

MiniSO8

DFN8

Pd

W

3)

ESD

1.5

100

200

250

kV

V

Human Body Model (pin to pin): TS486, TS487

Machine Model - 220pF - 240pF (pin to pin)

Latch-up Latch-up Immunity (All pins)

Lead Temperature (soldering, 10sec)

Output Short-Circuit to Vcc or GND

mA

°C

4)

continous

1. All voltage values are measured with respect to the ground pin.

2. Pd has been calculated with Tamb = 25°C, Tjunction = 150°C.

3. TS487 stands 1.5KV on all pins except standby pin which stands 1KV.

4. Attention must be paid to continous power dissipation (V x 300mA). Exposure of the IC to a short circuit for an extended time period is

DD

dramatically reducing product life expectancy.

OPERATING CONDITIONS

Symbol

Parameter

Value

Unit

V

Supply Voltage

Load Resistor

2 to 5.5

≥ 16

V

Ω

CC

R

L

T

Operating Free Air Temperature Range

-40 to + 85

°C

oper

Load Capacitor

R = 16 to 100Ω

C

400

100

pF

V

L

R > 100Ω

L

Standby Voltage Input

1.5 ≤ V

≤ V

V

STB

CC

1)

TS486 ACTIVE / TS487 in STANDBY

TS486 in STANDBY / TS487 ACTIVE

STB

GND ≤ V

≤ 0.4

STB

Thermal Resistance Junction to Ambient

SO8

MiniSO8

150

190

41

R

°C/W

THJA

2)

DFN8

1.

The minimum current consumption (I ) is guaranteed at GND (TS486) or V_CC(TS487) for the whole temperature range.

STANDBY

2. When mounted on a 4-layer PCB.

2/31

TS486-TS487

FIXED GAIN VERSION SPECIFIC ELECTRICAL CHARACTERISTICS

V_CCfrom +5V to +2V, GND = 0V, T_amb= 25°C (unless otherwise specified)

Symbol

Parameter

Min.

Typ.

Max.

Unit

1)

R

20

kΩ

Input Resistance

IN 1,2

Gain value for Gain TS486/TS487-1

Gain value for Gain TS486/TS487-2

Gain value for Gain TS486/TS487-4

0dB

6dB

G

dB

12dB

1.

See figure 30 to establish the value of Cin vs. -3dB cut off frequency.

APPLICATION COMPONENTS INFORMATION

Components

Functional Description

Inverting input resistor which sets the closed loop gain in conjunction with R

. This resistor also

FEED

R

C

IN1,2

forms a high pass filter with C (fc = 1 / (2 x Pi x R x C )) . Not needed in fixed gain versions.

IN

Input coupling capacitor which blocks the DC voltage at the amplifier’s input terminal.

Feedback resistor which sets the closed loop gain in conjunction with R .

IN

R

FEED1,2

A = Closed Loop Gain= -R

/R . Not needed in fixed gain versions.

FEED IN

V

C

Supply Bypass capacitor which provides power supply filtering.

Bypass capacitor which provides half supply filtering.

S

C

B

Output coupling capacitor which blocks the DC voltage at the load input terminal.

C

OUT1,2

This capacitor also forms a high pass filter with RL (fc = 1 / (2 x Pi x R x C

)).

L

OUT

TYPICAL APPLICATION SCHEMATICS

3/31

TS486-TS487

ELECTRICAL CHARACTERISTICS

V_CC= +5V, GND = 0V, T_amb= 25°C (unless otherwise specified)

Symbol

Parameter

Min.

Typ.

1.8

10

Max.

2.5

Unit

Supply Current

No input signal, no load

I

mA

CC

Standby Current

No input signal, V

=GND for TS486, R =32Ω

=Vcc for TS487, R =32Ω

I

1000

nA

STANDBY

L

STANDBY

No input signal, V

L

V

Input Offset Voltage (V

= V /2)

1

mV

nA

IO

ICM CC

1)

I

90

200

Input Bias Current (V

Output Power

= V /2)

CC

IB

ICM

THD+N = 0.1% Max, F = 1kHz, R = 32Ω

L

64

65

102

108

THD+N = 1% Max, F = 1kHz, R = 32Ω

P

60

95

mW

%

L

O

THD+N = 0.1% Max, F = 1kHz, R = 16Ω

L

THD+N = 1% Max, F = 1kHz, R = 16Ω

L

Total Harmonic Distortion + Noise (A =-1)

v

R = 32Ω, P = 60mW, 20Hz ≤ F ≤ 20kHz

THD + N

PSRR

0.3

L

out

R = 16Ω, P = 90mW, 20Hz ≤ F ≤ 20kHz

L

out

2)

Power Supply Rejection Ratio, inputs grounded

53

58

dB

(A =-1), RL>=16Ω, C =1µF, F = 1kHz, Vripple = 200mVpp

v

B

Max Output Current

I

106

115

mA

O

THD +N ≤ 1%, R = 16Ω connected between out and V /2

L

CC

Output Swing

V

: R = 32Ω

OL

OH

OL

OH

L

0.45

4.52

0.6

0.5

0.7

: R = 32Ω

V

4.45

4.2

V

L

O

: R = 16Ω

L

4.35

: R = 16Ω

L

2)

Signal-to-Noise Ratio (A weighted, A =-1)

v

SNR

80

103

dB

(R = 32Ω, THD +N < 0.4%, 20Hz ≤ F ≤ 20kHz)

L

Channel Separation, R = 32Ω, A =-1

L

v

F = 1kHz

F = 20Hz to 20kHz

Channel Separation, R = 16Ω, A =-1

83

79

Crosstalk

dB

L

v

80

72

F = 1kHz

F = 20Hz to 20kHz

C

Input Capacitance

1

pF

I

Gain Bandwidth Product (R = 32Ω)

GBP

SR

1.1

0.4

MHz

V/µs

L

Slew Rate, Unity Gain Inverting (R = 16Ω)

L

1. Only for external gain version.

2. Guaranteed by design and evaluation.

4/31

TS486-TS487

ELECTRICAL CHARACTERISTICS

_CC= +3.3V, GND = 0V, T_amb= 25°C (unless otherwise specified) ¹⁾

V

Symbol

Parameter

Min.

Typ.

1.8

10

Max.

2.5

Unit

Supply Current

No input signal, no load

I

mA

CC

Standby Current

No input signal, V

=GND for TS486, R =32Ω

=Vcc for TS487, R =32Ω

I

1000

nA

STANDBY

L

STANDBY

No input signal, V

L

V

Input Offset Voltage (V

= V /2)

1

mV

nA

IO

ICM CC

2)

I

90

200

Input Bias Current (V

Output Power

= V /2)

CC

IB

ICM

THD+N = 0.1% Max, F = 1kHz, R = 32Ω

L

26

28

38

42

THD+N = 1% Max, F = 1kHz, R = 32Ω

P

23

36

mW

%

L

O

THD+N = 0.1% Max, F = 1kHz, R = 16Ω

L

THD+N = 1% Max, F = 1kHz, R = 16Ω

L

Total Harmonic Distortion + Noise (A =-1)

v

R = 32Ω, P = 16mW, 20Hz ≤ F ≤ 20kHz

THD + N

PSRR

0.3

L

out

R = 16Ω, P = 35mW, 20Hz ≤ F ≤ 20kHz

L

out

3)

Power Supply Rejection Ratio, inputs grounded

53

64

58

75

dB

(A =-1), RL>=16Ω, C =1µF, F = 1kHz, Vripple = 200mVpp

v

B

Max Output Current

I

mA

O

THD +N ≤ 1%, R = 16Ω connected between out and V /2

L

CC

Output Swing

V

: R = 32Ω

OL

OH

OL

OH

L

0.3

3

0.45

0.38

0.52

: R = 32Ω

V

2.85

2.68

V

L

O

: R = 16Ω

L

2.85

: R = 16Ω

L

3)

Signal-to-Noise Ratio (A weighted, A =-1)

v

SNR

80

98

dB

(R = 32Ω, THD +N < 0.4%, 20Hz ≤ F ≤ 20kHz)

L

Channel Separation, R = 32Ω, A =-1

L

v

F = 1kHz

F = 20Hz to 20kHz

Channel Separation, R = 16Ω, A =-1

80

76

Crosstalk

dB

L

v

77

69

F = 1kHz

F = 20Hz to 20kHz

C

Input Capacitance

1

pF

I

Gain Bandwidth Product (R = 32Ω)

GBP

SR

1.1

0.4

MHz

V/µs

L

Slew Rate, Unity Gain Inverting (R = 16Ω)

L

1.

All electrical values are guaranted with correlation measurements at 2V and 5V.

2. Only for external gain version.

3. Guaranteed by design and evaluation.

5/31

TS486-TS487

ELECTRICAL CHARACTERISTICS

V

_CC= +2.5V, GND = 0V, T_amb= 25°C (unless otherwise specified)¹⁾

Symbol

Parameter

Min.

Typ.

1.7

10

Max.

2.5

Unit

Supply Current

No input signal, no load

I

mA

CC

Standby Current

No input signal, V

=GND for TS486, R =32Ω

=Vcc for TS487, R =32Ω

I

1000

nA

STANDBY

L

STANDBY

No input signal, V

L

V

Input Offset Voltage (V

= V /2)

1

mV

nA

IO

ICM CC

2)

I

90

200

Input Bias Current (V

Output Power

= V /2)

CC

IB

ICM

THD+N = 0.1% Max, F = 1kHz, R = 32Ω

L

13

14

21

22

THD+N = 1% Max, F = 1kHz, R = 32Ω

P

12.5

17.5

mW

%

L

O

THD+N = 0.1% Max, F = 1kHz, R = 16Ω

L

THD+N = 1% Max, F = 1kHz, R = 16Ω

L

Total Harmonic Distortion + Noise (A =-1)

v

R = 32Ω, P = 10mW, 20Hz ≤ F ≤ 20kHz

THD + N

PSRR

0.3

L

out

R = 16Ω, P = 16mW, 20Hz ≤ F ≤ 20kHz

L

out

3)

Power Supply Rejection Ratio, inputs grounded

53

45

58

56

dB

(A =-1), RL>=16Ω, C =1µF, F = 1kHz, Vripple = 200mVpp

v

B

Max Output Current

I

mA

O

THD +N ≤ 1%, R = 16Ω connected between out and V /2

L

CC

Output Swing

V

: R = 32Ω

OL

OH

OL

OH

L

0.25

2.25

0.35

2.15

0.32

0.45

: R = 32Ω

V

2.14

1.97

V

L

O

: R = 16Ω

L

: R = 16Ω

L

3)

Signal-to-Noise Ratio (A weighted, A =-1)

v

SNR

80

95

dB

(R = 32Ω, THD +N < 0.4%, 20Hz ≤ F ≤ 20kHz)

L

Channel Separation, R = 32Ω, A =-1

L

v

F = 1kHz

F = 20Hz to 20kHz

Channel Separation, R = 16Ω, A =-1

80

76

Crosstalk

dB

L

v

77

69

F = 1kHz

F = 20Hz to 20kHz

C

Input Capacitance

1

pF

I

Gain Bandwidth Product (R = 32Ω)

GBP

SR

1.1

0.4

MHz

V/µs

L

Slew Rate, Unity Gain Inverting (R = 16Ω)

L

1.

All electrical values are guaranted with correlation measurements at 2V and 5V.

2. Only for external gain version.

3. Guaranteed by design and evaluation.

6/31

TS486-TS487

ELECTRICAL CHARACTERISTICS

_CC= +2V, GND = 0V, T_amb= 25°C (unless otherwise specified)

V

Symbol

Parameter

Min.

Typ.

1.7

10

Max.

2.5

Unit

Supply Current

No input signal, no load

I

mA

CC

Standby Current

No input signal, V

=GND for TS486, R =32Ω

=Vcc for TS487, R =32Ω

I

1000

nA

STANDBY

L

STANDBY

No input signal, V

L

V

Input Offset Voltage (V

= V /2)

1

mV

nA

IO

ICM CC

1)

I

90

200

Input Bias Current (V

Output Power

= V /2)

CC

IB

ICM

THD+N = 0.1% Max, F = 1kHz, R = 32Ω

L

8

9

THD+N = 1% Max, F = 1kHz, R = 32Ω

P

7

mW

%

L

O

THD+N = 0.3% Max, F = 1kHz, R = 16Ω

12

13

L

9.5

THD+N = 1% Max, F = 1kHz, R = 16Ω

L

Total Harmonic Distortion + Noise (A =-1)

v

R = 32Ω, P = 6.5mW, 20Hz ≤ F ≤ 20kHz

THD + N

PSRR

0.3

L

out

R = 16Ω, P = 8mW, 20Hz ≤ F ≤ 20kHz

L

out

2)

Power Supply Rejection Ratio, inputs grounded

52

33

57

41

dB

(A =-1), RL>=16Ω, C =1µF, F = 1kHz, Vripple = 200mVpp

v

B

Max Output Current

I

mA

O

THD +N ≤ 1%, R = 16Ω connected between out and V /2

L

CC

Output Swing

V

: R = 32Ω

OL

OH

OL

OH

L

0.24

1.73

0.33

1.63

0.29

0.41

: R = 32Ω

V

1.67

1.53

V

L

O

: R = 16Ω

L

: R = 16Ω

L

2)

Signal-to-Noise Ratio (A weighted, A =-1)

v

SNR

80

93

dB

(R = 32Ω, THD +N < 0.4%, 20Hz ≤ F ≤ 20kHz)

L

Channel Separation, R = 32Ω, A =-1

L

v

F = 1kHz

F = 20Hz to 20kHz

Channel Separation, R = 16Ω, A =-1

80

76

Crosstalk

dB

L

v

77

69

F = 1kHz

F = 20Hz to 20kHz

C

Input Capacitance

1

pF

I

Gain Bandwidth Product (R = 32Ω)

GBP

SR

1.1

0.4

MHz

V/µs

L

Slew Rate, Unity Gain Inverting (R = 16Ω)

L

1. Only for external gain version.

2. Guaranteed by design and evaluation.

7/31

TS486-TS487

Index of Graphs

Description

Figure

Page

Common Curves

Open Loop Gain and Phase vs Frequency

Current Consumption vs Power Supply Voltage

Current Consumption vs Standby Voltage

Output Power vs Power Supply Voltage

Output Power vs Load Resistor

Power Dissipation vs Output Power

Power Derating vs Ambiant Temperature

Output Voltage Swing vs Supply Voltage

Low Frequency Cut Off vs Input Capacitor for fixed gain versions

Curves With 0dB Gain Setting (Av=-1)

THD + N vs Output Power

1 to 10

11

9 to 10

10

12 to 17

18 to19

20 to 23

24 to 27

28

10 to 11

11 to 12

12

12 to 13

13

29

13

30

13

31 to 39

40 to 42

43 to 48

49 to 50

51 to 56

14 to 15

15

THD + N vs Frequency

Crosstalk vs Frequency

16

Signal to Noise Ratio vs Power Supply Voltage

PSRR vs Frequency

17

17 to 18

Curves With 6dB Gain Setting (Av=-2)

THD + N vs Output Power

57 to 65

66 to 68

69 to 72

73 to 74

75 to 79

19 to 20

20

THD + N vs Frequency

Crosstalk vs Frequency

21

Signal to Noise Ratio vs Power Supply Voltage

PSRR vs Frequency

21

22

Curves With 12dB Gain Setting (Av=-4)

THD + N vs Output Power

80 to 88

89 to 91

92 to 95

96 to 97

98 to 102

22 to 24

24

THD + N vs Frequency

Crosstalk vs Frequency

24

Signal to Noise Ratio vs Power Supply Voltage

PSRR vs Frequency

25

26

8/31

TS486-TS487

Fig. 1: Open Loop Gain and Phase vs

Frequency

Fig. 2: Open Loop Gain and Phase vs

Frequency

180

160

140

120

100

80

180

160

140

120

100

80

Vcc = 5V

ZL = 16

Tamb = 25

Vcc = 5V

ZL = 16Ω+400pF

Tamb = 25°C

80

60

40

Ω

Gain

°C

60

40

20

0

Phase

20

0

60

40

20

-20

-40

-20

-40

0

-20

10000

-20

10000

0.1

1

10

100

1000

0.1

1

10

100

1000

Frequency (kHz)

Fig. 3: Open Loop Gain and Phase vs

Frequency

Fig. 4: Open Loop Gain and Phase vs

Frequency

180

160

140

120

100

80

180

160

140

120

100

80

Vcc = 2V

ZL = 16

Tamb = 25

Vcc = 2V

ZL = 16Ω+400pF

Tamb = 25°C

80

60

40

20

0

Ω

Gain

°C

60

40

20

0

Phase

60

40

20

-20

-40

-20

-40

0

-20

10000

-20

10000

0.1

1

10

100

1000

0.1

1

10

100

1000

Frequency (kHz)

Fig. 5: Open Loop Gain and Phase vs

Frequency

Fig. 6: Open Loop Gain and Phase vs

Frequency

180

160

140

120

100

80

180

160

140

120

100

80

Vcc = 5V

ZL = 32

Tamb = 25

Vcc = 5V

80

60

40

20

0

80

Ω

+400pF

ZL = 32

Ω

Gain

°C

Tamb = 25°C

60

40

20

0

Phase

60

40

20

-20

-40

-20

-40

0

-20

10000

-20

10000

0.1

1

10

100

1000

0.1

1

10

100

1000

Frequency (kHz)

9/31

TS486-TS487

Fig. 7: Open Loop Gain and Phase vs

Frequency

Fig. 8: Open Loop Gain and Phase vs

Frequency

180

160

140

120

100

80

180

160

140

120

100

80

Vcc = 2V

ZL = 32

Tamb = 25

Vcc = 2V

80

60

40

20

0

80

Ω

+400pF

ZL = 32

Ω

Gain

°C

Tamb = 25°C

60

40

20

0

Phase

60

40

20

-20

-40

-20

-40

0

-20

10000

-20

10000

0.1

1

10

100

1000

0.1

1

10

100

1000

Frequency (kHz)

Fig. 9: Open Loop Gain and Phase vs

Frequency

Fig. 10: Open Loop Gain and Phase vs

Frequency

180

160

140

120

100

80

180

160

140

120

100

80

Vcc = 5V

RL = 600

Tamb = 25

Vcc = 2V

RL = 600

Tamb = 25°C

80

60

40

20

0

80

60

40

20

0

Gain

Ω

°C

Phase

60

40

20

-20

-40

-20

-40

0

-20

0.1

1

10

100

1000

10000

0.1

1

10

100

1000

10000

Frequency (kHz)

Fig. 11: Current Consumption vs Power Supply

Voltage

Fig. 12: Current Consumption vs Standby

Voltage

2.0

No load

Ta=85°C

1.5

Ta=85°C

Ta=25°C

Ta=-40°C

Ta=25°C

1.0

0.5

0.0

1.0

Ta=-40°C

0.5

TS486

Vcc = 5V

No load

0.0

0

1

2

3

4

5

0

1

2

3

4

5

Power Supply Voltage (V)

Standby Voltage (V)

10/31

TS486-TS487

Fig. 13: Current Consumption vs Standby

Voltage

Fig. 14: Current Consumption vs Standby

Voltage

2.0

1.5

2.0

1.5

1.0

0.5

0.0

Ta=85°C

Ta=85

°

C

Ta=25°C

Ta=-40°C

Ta=25°C

1.0

0.5

0.0

Ta=-40°C

TS486

Vcc = 3.3V

No load

TS486

Vcc = 2V

No load

0

1

2

3

0

1

2

Standby Voltage (V)

Fig. 15: Current Consumption vs Standby

Voltage

Fig. 16: Current Consumption vs Standby

Voltage

2.5

2.0

Ta=85°C

Ta=25°C

2.0

1.5

1.0

0.5

0.0

1.5

1.0

0.5

0.0

Ta=85°C

Ta=-40°C

TS487

Vcc = 5V

No load

TS487

Vcc = 3.3V

No load

0

1

2

3

4

5

0

1

2

3

Standby Voltage (V)

Fig. 17: Current Consumption vs Standby

Voltage

Fig. 18: Output Power vs Power Supply

Voltage

2.0

200

Ta=85°C

RL = 16

Ω

175

150

125

100

75

F = 1kHz

BW < 125kHz

Tamb = 25°C

THD+N=1%

1.5

Ta=25°C

THD+N=10%

1.0

Ta=-40°C

0.5

50

TS487

THD+N=0.1%

Vcc = 2V

25

No load

0.0

0

2.0

0

1

2

2.5

3.0

3.5

4.0

4.5

5.0

5.5

Vcc (V)

Standby Voltage (V)

11/31

TS486-TS487

Fig. 19: Output Power vs Power Supply

Voltage

Fig. 20: Output Power vs Load Resistor

200

RL = 32

F = 1kHz

BW < 125kHz

Tamb = 25°C

Ω

Vcc = 5V

180

F = 1kHz

BW < 125kHz

Tamb = 25°C

100

75

50

25

0

THD+N=1%

160

140

120

100

80

THD+N=10%

60

THD+N=0.1%

40

THD+N=0.1%

20

0

2.0

2.5

3.0

3.5

Vcc (V)

4.0

4.5

5.0

5.5

8

16

24

32

40

48

)

56

64

Load Resistance (

Fig. 21: Output Power vs Load Resistor

Fig. 22: Output Power vs Load Resistor

50

70

60

50

40

30

20

10

0

Vcc = 3.3V

F = 1kHz

BW < 125kHz

Vcc = 2.5V

F = 1kHz

45

THD+N=1%

40

35

30

25

20

15

10

5

BW < 125kHz

Tamb = 25

Tamb = 25°C

°

C

THD+N=1%

THD+N=10%

THD+N=0.1%

0

8

16

24

32

40

48

56

64

8

16

24

32

40

48

56

64

Load Resistance (

)

Load Resistance (

)

Fig. 23: Output Power vs Load Resistor

Fig. 24: Power Dissipation vs Output Power

25

Vcc=5V

F=1kHz

THD+N<1%

Vcc = 2V

F = 1kHz

BW < 125kHz

80

20

15

10

5

Tamb = 25°C

THD+N=1%

60

40

20

0

RL=16

Ω

THD+N=10%

RL=32

Ω

THD+N=0.1%

0

20

40

60

80

100

8

16

24

32

40

48

56

64

Output Power (mW)

Load Resistance (

)

12/31

TS486-TS487

Fig. 25: Power Dissipation vs Output Power

Fig. 26: Power Dissipation vs Output Power

40

Vcc=2.5V

F=1kHz

THD+N<1%

Vcc=3.3V

F=1kHz

THD+N<1%

30

20

10

0

RL=16Ω

RL=16

Ω

20

10

0

RL=32

Ω

RL=32Ω

0

5

10

15

20

0

10

20

Output Power (mW)

30

40

Output Power (mW)

Fig. 27: Power Dissipation vs Output Power

Fig. 28: Power Derating vs Ambiant

Temperature

15

Vcc=2V

F=1kHz

THD+N<1%

10

RL=16

Ω

5

0

RL=32

Ω

0

2

4

6

8

10

12

Output Power (mW)

Fig. 29: Output Voltage Swing vs Power Supply

Voltage

Fig. 30: Low Frequency Cut Off vs Input

Capacitor for fixed gain versions.

5.0

Tamb=25°C

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0.0

Ω

RL=32

Ω

RL=16

Ω

2.0

2.5

3.0

3.5

4.0

4.5

5.0

Power Supply Voltage (V)

13/31

TS486-TS487

Fig. 31: THD + N vs Output Power

Fig. 32: THD + N vs Output Power

10

RL = 16

Ω

RL = 32

Ω

F = 20Hz

Av = -1

F = 20Hz

Av = -1

Cb = 1

BW < 22kHz

Tamb = 25

µ

F

1

0.1

Cb = 1

BW < 22kHz

Tamb = 25

µF

1

0.1

°

C

°C

Vcc=2V

Vcc=2.5V

0.01

Vcc=3.3V

10

Vcc=5V

Vcc=3.3V

10

Vcc=5V

1

100

1

100

Output Power (mW)

Fig. 33: THD + N vs Output Power

Fig. 34: THD + N vs Output Power

10

RL = 600Ω, F = 20Hz

RL = 16

F = 1kHz

Av = -1

Cb = 1µF

BW < 125kHz

Tamb = 25

Ω

Av = -1, Cb = 1

µF

Vcc=2V

BW < 22kHz

Tamb = 25°C

1

0.1

Vcc=2.5V

Vcc=3.3V

1

0.1

°

C

Vcc=2V

Vcc=5V

Vcc=2.5V

0.01

Vcc=3.3V

10

Vcc=5V

1E-3

0.01

0.1

Output Voltage (Vrms)

1

100

Output Power (mW)

Fig. 35: THD + N vs Output Power

Fig. 36: THD + N vs Output Power

10

RL = 32

Ω

F = 1kHz

Av = -1

Vcc=2V

1

0.1

Cb = 1

BW < 125kHz

Tamb = 25

µF

Vcc=2.5V

°C

Vcc=3.3V

0.1

Vcc=2V

Vcc=5V

0.01

1E-3

RL = 600

Av = -1, Cb = 1

BW < 125kHz, Tamb = 25

Ω, F = 1kHz

µF

Vcc=2.5V

°C

Vcc=3.3V

10

Vcc=5V

1E-3

0.01

0.1

Output Voltage (Vrms)

1

100

Output Power (mW)

14/31

TS486-TS487

Fig. 37: THD + N vs Output Power

Fig. 38: THD + N vs Output Power

10

RL = 16

Ω

RL = 32Ω

F = 20kHz

Av = -1

F = 20kHz

Av = -1

Cb = 1µF

BW < 125kHz

Tamb = 25°C

BW < 125kHz

1

Tamb = 25°C

1

Vcc=2V

Vcc=2.5V

0.1

Vcc=5V

Vcc=3.3V

10

Vcc=5V

Vcc=3.3V

10

1

100

1

100

Output Power (mW)

Fig. 39: THD + N vs Output Power

Fig. 40: THD + N vs Frequency

10

RL=16

Av=-1

Cb = 1

Ω

Vcc=2V

µF

Bw < 125kHz

Tamb = 25

1

Vcc=2.5V

°

C

Vcc=2V, Po=7.5mW

0.1

Vcc=5V, Po=85mW

0.01

1E-3

Vcc=3.3V

Vcc=5V

RL = 600

Av = -1, Cb = 1

BW < 125kHz, Tamb = 25

Ω, F = 20kHz

µF

0.01

°C

20

100

1000

10000 20k

0.01

0.1

Output Voltage (Vrms)

1

Frequency (Hz)

Fig. 41: THD + N vs Frequency

Fig. 42: THD + N vs Frequency

RL=32

Av=-1

Cb = 1

Ω

RL=600Ω

Av=-1

Cb = 1µF

µF

0.1

0.01

1E-3

Bw < 125kHz

Tamb=25

Bw < 125kHz

Tamb = 25°C

°C

0.1

Vcc=5V, Vo=1.3Vrms

Vcc=2V, Vo=0.5Vrms

Vcc=2V, Po=6mW

Vcc=5V, Po=55mW

0.01

20

100

1000

10000 20k

20

100

1000

10000 20k

Frequency (Hz)

15/31

TS486-TS487

Fig. 43: Crosstalk vs Frequency

Fig. 44: Crosstalk vs Frequency

ChB to ChA

80

ChA to ChB

60

40

20

0

ChA to ChB

ChB to ChA

RL=16

Ω

RL=16

Vcc=5V

Ω

40

20

0

Vcc=2V

Pout=7.5mW

Av=-1

Pout=85mW

Av=-1

Cb = 1

Bw < 125kHz

Tamb=25

Cb = 1

Bw < 125kHz

Tamb=25

µF

°C

20

100

1000

Frequency (Hz)

10000 20k

20

100

1000

10000 20k

Frequency (Hz)

Fig. 45: Crosstalk vs Frequency

Fig. 46: Crosstalk vs Frequency

80

ChA to ChB

60

ChB to ChA

60

40

20

0

ChB to ChA

40

RL=32

Ω

RL=32

Vcc=5V

Ω

Vcc=2V

Pout=6mW

Av=-1

Pout=55mW

Av=-1

Cb = 1

Bw < 125kHz

Tamb=25

Cb = 1

Bw < 125kHz

Tamb=25

µF

20

0

µF

°C

20

100

1000

10000 20k

20

100

1000

10000 20k

Frequency (Hz)

Fig. 47: Crosstalk vs Frequency

Fig. 48: Crosstalk vs Frequency

80

Cb = 1µF

60

40

20

0

60

40

20

0

Cb = 1µF

Cb = 4.7

µF

Cb = 4.7µF

RL=16

Vcc=5V

Pout=85mW

Av=-1

ChB to ChA

Bw < 125kHz

Ω

RL=32

Vcc=5V

Pout=55mW

Av=-1

ChB to ChA

Bw < 125kHz

Ω

Tamb=25

°C

Tamb=25

°C

20

100

1000

Frequency (Hz)

10000 20k

20

100

1000

Frequency (Hz)

10000 20k

16/31

TS486-TS487

Fig. 49: Signal to Noise Ratio vs Power Supply

VoltagewithUnweightedFilter(20Hzto20kHz)

Fig. 50: Signal to Noise Ratio vs Power Supply

Voltage with Weighted Filter Type A

Av = -1

Cb = 1

THD+N < 0.4%

Tamb = 25

Av = -1

Cb = 1

THD+N < 0.4%

Tamb = 25

104

102

100

98

104

102

100

98

RL=600Ω

µF

RL=600

Ω

°C

RL=32

Ω

96

RL=32

Ω

94

RL=16

Ω

92

RL=16

Ω

90

2.0

90

2.0

2.5

3.0

3.5

4.0

4.5

5.0

2.5

3.0

3.5

4.0

4.5

5.0

Power Supply Voltage (V)

Fig. 51: PSRR vs Power Supply Voltage

Fig. 52: PSRR vs Bypass Capacitor

0

Vripple = 200mVpp

Av = -1

Vripple = 200mVpp

Av = -1

-10

Input = grounded

Cb = 1µF

Input = grounded

Vcc = 5V

-20

RL >= 16Ω

Tamb = 25°C

RL >= 16Ω

Tamb = 25°C

-30

Vcc = 2V

-40

-50

-60

-70

-80

-40

Cb = 1µF

-50

-60

-70

-80

Vcc = 5V, 3.3V & 2.5V

Cb = 2.2µF

Cb = 4.7µF

100

1000

10000

Frequency (Hz)

100000

100

1000

10000

100000

Frequency (Hz)

Fig. 53: PSRR vs Input Capacitor

Fig. 54: PSRR vs Output Capacitor

0

Vripple = 200mVpp

Av = -1, Vcc = 5V

Input = grounded

Cb = 1µF, RL = 16Ω

RL >= 16Ω

-10

-20

-30

-40

-50

-60

-70

-80

-10

-20

-30

-40

-50

-60

-70

Av = -1, Vcc = 5V

Input = grounded

Cb = 1µF, Rin = 20kΩ

RL >= 16Ω

Cout = 470µF

Cin = 1µF, 220nF

Tamb = 25°C

Cout = 220µF

Cin = 100nF

1000

100

10000

Frequency (Hz)

100000

100

1000

10000

Frequency (Hz)

100000

17/31

TS486-TS487

Fig. 55: PSRR vs Output Capacitor

Fig. 56: PSRR vs Power Supply Voltage

0

Vripple = 200mVpp

Av = -1

Input = floating

Cb = 1µF

RL >= 16Ω

Tamb = 25°C

Vripple = 200mVpp

-10

Av = -1, Vcc = 5V

Input = grounded

-20

Cout = 470µF

Cb = 1µF, RL = 32Ω

RL >= 16Ω

-30

-40

-50

-60

-70

-80

Tamb = 25°C

Vcc = 2V

-40

-50

-60

-70

-80

Cout = 100µF

Vcc = 5V, 3.3V & 2.5V

100

1000

10000

100000

100

1000

10000

Frequency (Hz)

100000

Frequency (Hz)

18/31

TS486-TS487

Fig. 57: THD + N vs Output Power

Fig. 58: THD + N vs Output Power

10

1

RL = 16

F = 20Hz

Av = -2

Cb = 1µF

BW < 22kHz

Tamb = 25

Ω

RL = 32

Ω

F = 20Hz

Av = -2

Cb = 1

BW < 22kHz

Tamb = 25

µF

1

0.1

°

C

°C

Vcc=2V

0.1

0.01

Vcc=2.5V

0.01

Vcc=3.3V

10

Vcc=5V

Vcc=3.3V

10

1

100

1

100

Output Power (mW)

Fig. 59: THD + N vs Output Power

Fig. 60: THD + N vs Output Power

10

RL = 600Ω, F = 20Hz

RL = 16

Ω

Av = -2, Cb = 1

BW < 22kHz

µF

F = 1kHz

Av = -2

Vcc=2V

1

0.1

Tamb = 25°C

Cb = 1µF

BW < 125kHz

Tamb = 25

1

0.1

Vcc=2.5V

Vcc=3.3V

°

C

Vcc=2V

Vcc=5V

Vcc=2.5V

0.01

Vcc=3.3V

10

Vcc=5V

1E-3

0.01

1

100

0.1

Output Voltage (Vrms)

1

Output Power (mW)

Fig. 61: THD + N vs Output Power

Fig. 62: THD + N vs Output Power

10

RL = 32

Ω

F = 1kHz

Av = -2

Cb = 1µF

BW < 125kHz

Tamb = 25

Vcc=2V

1

0.1

Vcc=2.5V

°

C

Vcc=3.3V

Vcc=5V

0.1

Vcc=2V

Vcc=2.5V

0.01

RL = 600

Av = -2, Cb = 1

BW < 125kHz, Tamb = 25

Ω, F = 1kHz

µF

0.01

Vcc=3.3V

10

Vcc=5V

°C

1E-3

1

100

0.01 0.1

1

Output Voltage (Vrms)

Output Power (mW)

19/31

TS486-TS487

Fig. 63: THD + N vs Output Power

Fig. 64: THD + N vs Output Power

10

RL = 32Ω

F = 20kHz

Av = -2

RL = 16

F = 20kHz

Av = -2

Ω

Cb = 1µF

BW < 125kHz

Tamb = 25°C

Cb = 1

BW < 125kHz

Tamb = 25

µF

1

°

C

1

Vcc=2V

Vcc=2.5V

0.1

Vcc=3.3V

10

Vcc=2.5V

Vcc=3.3V

10

Vcc=5V

1

100

1

100

Output Power (mW)

Fig. 65: THD + N vs Output Power

Fig. 66: THD + N vs Frequency

10

RL=16

Av=-2

Cb = 1

Ω

Vcc=2V

µF

Bw < 125kHz

Tamb = 25

1

Vcc=2.5V

°

C

Vcc=2V, Po=7.5mW

0.1

0.01

1E-3

Vcc=3.3V

Vcc=5V

RL = 600

Av = -2, Cb = 1

BW < 125kHz, Tamb = 25

Ω, F = 20kHz

Vcc=5V, Po=85mW

100

µF

0.01

°C

20

1000

10000 20k

0.01

0.1

1

Frequency (Hz)

Output Voltage (Vrms)

Fig. 67: THD + N vs Frequency

Fig. 68: THD + N vs Frequency

RL=32

Av=-2

Cb = 1

Bw < 125kHz

Tamb=25

Ω

RL=600

Av=-2

Ω

µF

Cb = 1µF

0.1

0.01

1E-3

Bw < 125kHz

Tamb = 25

°C

°

C

0.1

Vcc=5V, Vo=1.3Vrms

Vcc=2V, Po=6mW

Vcc=2V, Vo=0.5Vrms

0.01

Vcc=5V, Po=55mW

100

20

1000

10000 20k

20

100

1000

10000 20k

Frequency (Hz)

20/31

TS486-TS487

Fig. 69: Crosstalk vs Frequency

Fig. 70: Crosstalk vs Frequency

ChB to ChA

80

ChB to ChA

80

60

40

20

0

ChA to ChB

RL=16

Ω

RL=16

Vcc=5V

Ω

40

20

0

Vcc=2V

Pout=7.5mW

Av=-2

Pout=85mW

Av=-2

Cb = 1

Bw < 125kHz

Tamb=25

Cb = 1

Bw < 125kHz

Tamb=25

µF

°C

20

100

1000

10000 20k

20

100

1000

Frequency (Hz)

10000 20k

Frequency (Hz)

Fig. 71: Crosstalk vs Frequency

Fig. 72: Crosstalk vs Frequency

80

60

ChA to ChB

ChB to ChA

60

40

20

0

ChB to ChA

40

RL=32

Ω

RL=32Ω

Vcc=2V

Vcc=5V

Pout=55mW

Av=-2

Pout=6mW

Av=-2

Cb = 1µF

Bw < 125kHz

Tamb=25°C

20

0

Cb = 1

Bw < 125kHz

Tamb=25

µF

°C

20

100

1000

Frequency (Hz)

10000 20k

20

100

1000

10000 20k

Frequency (Hz)

Fig. 73: Signal to Noise Ratio vs Power Supply

Voltage with Unweighted Filter (20Hz to 20kHz)

Fig. 74: Signal to Noise Ratio vs Power Supply

Voltage with Weighted Filter Type A

100

104

RL=600

Ω

Av = -2

Cb = 1

THD+N < 0.4%

Av = -2

Cb = 1µF

THD+N < 0.4%

Tamb = 25

102

98

96

94

92

90

88

86

84

82

µF

RL=600

Ω

100

98

96

94

92

90

88

86

84

82

Tamb = 25

°C

°

C

RL=32

Ω

RL=32

Ω

RL=16

Ω

RL=16

Ω

2.0

2.5

3.0

3.5

4.0

4.5

5.0

2.0

2.5

3.0

3.5

4.0

4.5

5.0

Power Supply Voltage (V)

21/31

TS486-TS487

Fig. 75: PSRR vs Power Supply Voltage

Fig. 76: PSRR vs Bypass Capacitor

0

Vripple = 200mVpp

Av = -2

Vripple = 200mVpp

Av = -2

-10

Input = grounded

-20

-30

-40

-50

-60

-70

-20

-30

-40

-50

-60

-70

Cb = 1µF

RL >= 16Ω

Tamb = 25°C

Vcc = 5V

RL >= 16Ω

Tamb = 25°C

Vcc = 2V

Cb = 1µF

Vcc = 5V, 3.3V & 2.5V

Cb = 4.7µF

100

Cb = 2.2µF

100

1000

10000

Frequency (Hz)

100000

1000

10000

100000

Frequency (Hz)

Fig. 77: PSRR vs Input Capacitor

Fig. 78: PSRR vs Output Capacitor

0

Vripple = 200mVpp

Av = -2, Vcc = 5V

Input = grounded

Cb = 1µF, RL = 16Ω

RL >= 16Ω

-10

-20

-30

-40

-50

-60

-70

-10

Av = -2, Vcc = 5V

Input = grounded

Cb = 1µF, Rin = 20kΩ

RL >= 16Ω

-20

Cout = 470µF

Cin = 1µF, 220nF

-30

-40

-50

-60

-70

Tamb = 25°C

Cout = 220µF

Cin = 100nF

1000

100

10000

Frequency (Hz)

100

1000

10000

100000

Frequency (Hz)

Fig. 79: PSRR vs Output Capacitor

Fig. 80: THD + N vs Output Power

10

0

RL = 16

Ω

Vripple = 200mVpp

Av = -2, Vcc = 5V

Input = grounded

Cb = 1µF, RL = 32Ω

RL >= 16Ω

-10

F = 20Hz

Av = -4

Cb = 1µF

-20

-30

-40

-50

-60

-70

Cout = 470µF

1

0.1

BW < 22kHz

Tamb = 25

°C

Vcc=2V

Tamb = 25°C

Vcc=2.5V

Cout = 100µF

Vcc=3.3V

10

Vcc=5V

0.01

1

100

1000

10000

Frequency (Hz)

Output Power (mW)

22/31

TS486-TS487

Fig. 81: THD + N vs Output Power

Fig. 82: THD + N vs Output Power

10

1

10

RL = 600Ω, F = 20Hz

RL = 32

F = 20Hz

Av = -4

Cb = 1µF

BW < 22kHz

Tamb = 25

Ω

Av = -4, Cb = 1

µF

Vcc=2V

BW < 22kHz

Tamb = 25°C

Vcc=2.5V

Vcc=3.3V

1

0.1

°

C

0.1

Vcc=2V

Vcc=5V

Vcc=2.5V

0.01

Vcc=5V

Vcc=3.3V

10

1E-3

0.01

0.1

Output Voltage (Vrms)

1

100

Output Power (mW)

Fig. 83: THD + N vs Output Power

Fig. 84: THD + N vs Output Power

10

RL = 16

Ω

RL = 32

Ω

F = 1kHz

Av = -4

F = 1kHz

Av = -4

Cb = 1µF

BW < 125kHz

Tamb = 25

Cb = 1µF

BW < 125kHz

Tamb = 25

1

0.1

1

0.1

°

C

°

C

Vcc=2V

Vcc=2.5V

Vcc=3.3V

10

Vcc=5V

Vcc=3.3V

10

Vcc=5V

0.01

1

100

1

100

Output Power (mW)

Fig. 85: THD + N vs Output Power

Fig. 86: THD + N vs Output Power

10

RL = 16

F = 20kHz

Av = -4

Ω

Vcc=2V

1

Vcc=2.5V

Cb = 1

BW < 125kHz

Tamb = 25

µF

°

C

Vcc=3.3V

Vcc=2V

0.1

1

Vcc=2.5V

0.01

RL = 600

Av = -4, Cb = 1

Ω, F = 1kHz

Vcc=5V

µF

BW < 125kHz, Tamb = 25

°C

Vcc=3.3V

10

Vcc=5V

1E-3

0.01

0.1

1

100

Output Voltage (Vrms)

Output Power (mW)

23/31

TS486-TS487

Fig. 87: THD + N vs Output Power

Fig. 88: THD + N vs Output Power

10

RL = 32

Ω

Vcc=2V

F = 20kHz

Av = -4

1

Cb = 1

BW < 125kHz

Tamb = 25

µF

Vcc=2.5V

°C

0.1

1

Vcc=2V

Vcc=2.5V

0.01

1E-3

Vcc=3.3V

Vcc=5V

RL = 600

Av = -4, Cb = 1

BW < 125kHz, Tamb = 25

Ω, F = 20kHz

µF

°C

Vcc=5V

Vcc=3.3V

10

0.1

0.01

0.1

1

100

Output Voltage (Vrms)

Output Power (mW)

Fig. 89: THD + N vs Frequency

Fig. 90: THD + N vs Frequency

RL=32Ω

Av=-4

Cb = 1µF

Bw < 125kHz

Tamb=25°C

RL=16

Av=-4

Cb = 1

Bw < 125kHz

Tamb = 25

Ω

µF

°C

0.1

Vcc=2V, Po=7.5mW

Vcc=2V, Po=6mW

0.1

Vcc=5V, Po=85mW

Vcc=5V, Po=55mW

0.01

20

100

1000

10000 20k

20

100

1000

10000 20k

Frequency (Hz)

Fig. 91: THD + N vs Frequency

Fig. 92: Crosstalk vs Frequency

80

RL=600

Ω

ChB to ChA

Av=-4

Cb = 1

Bw < 125kHz

Tamb = 25

µ

F

0.1

0.01

1E-3

60

°

C

Vcc=2V, Vo=0.5Vrms

Vcc=5V, Vo=1.3Vrms

ChA to ChB

40

RL=16Ω

Vcc=5V

Pout=85mW

Av=-4

Cb = 1µF

Bw < 125kHz

Tamb=25°C

20

0

20

100

1000

10000 20k

20

100

1000

10000 20k

Frequency (Hz)

24/31

TS486-TS487

Fig. 93: Crosstalk vs Frequency

Fig. 94: Crosstalk vs Frequency

80

ChB to ChA

80

60

ChA to ChB

ChB to ChA

60

40

20

0

ChA to ChB

40

20

0

RL=16Ω

Vcc=2V

RL=32

Ω

Vcc=5V

Pout=55mW

Av=-4

Pout=7.5mW

Av=-4

Cb = 1µF

Bw < 125kHz

Tamb=25°C

Cb = 1

Bw < 125kHz

Tamb=25

µF

°C

20

100

1000

10000 20k

20

100

1000

Frequency (Hz)

10000 20k

Frequency (Hz)

Fig. 95: Crosstalk vs Frequency

Fig. 96: Signal to Noise Ratio vs Power Supply

Voltage with Unweighted Filter (20Hz to 20kHz)

100

80

Av = -4

Cb = 1µF

98

RL=600

Ω

THD+N < 0.4%

96

94

92

90

88

86

84

82

80

60

Tamb = 25°C

ChA to ChB

ChB to ChA

40

RL=32Ω

Vcc=2V

Pout=6mW

Av=-4

Cb = 1µF

Bw < 125kHz

Tamb=25°C

RL=32

Ω

20

0

RL=16

Ω

2.0

2.5

3.0

3.5

4.0

4.5

5.0

20

100

1000

10000 20k

Frequency (Hz)

Power Supply Voltage (V)

Fig. 97: Signal to Noise Ratio vs Power Supply

Voltage with Weighted Filter Type A

Fig. 98: PSRR vs Power Supply Voltage

100

0

Av = -4

Cb = 1µF

98

Vripple = 200mVpp

RL=600

Ω

Av = -4

Input = grounded

Cb = 1µF

RL >= 16Ω

Tamb = 25°C

-10

-20

-30

-40

-50

-60

THD+N < 0.4%

Tamb = 25°C

96

94

92

90

88

86

84

82

80

Vcc = 2V

RL=32

Ω

RL=16

Ω

Vcc = 5V, 3.3V & 2.5V

2.0

2.5

3.0

3.5

4.0

4.5

5.0

100

1000

10000

Frequency (Hz)

100000

Power Supply Voltage (V)

25/31

TS486-TS487

Fig. 99: PSRR vs Input Capacitor

Fig. 100: PSRR vs Bypass Capacitor

0

Vripple = 200mVpp

-10

-20

-30

-40

-50

-60

Av = -4

Input = grounded

Vcc = 5V

RL >= 16Ω

Tamb = 25°C

-10

-20

-30

-40

-50

-60

Av = -4, Vcc = 5V

Input = grounded

Cb = 1µF, Rin = 20kΩ

RL >= 16Ω

Cin = 1µF, 220nF

Tamb = 25°C

Cb = 1µF

Cin = 100nF

1000

Cb = 4.7µF

Cb = 2.2µF

1000

100

10000

Frequency (Hz)

100000

100

10000

Frequency (Hz)

100000

Fig. 101: PSRR vs Output Capacitor

Fig. 102: PSRR vs Output Capacitor

0

Vripple = 200mVpp

-10

-20

-30

-40

-50

-60

Av = -4, Vcc = 5V

Input = grounded

Cb = 1µF, RL = 32Ω

RL >= 16Ω

-10

-20

-30

-40

-50

-60

Av = -4, Vcc = 5V

Input = grounded

Cb = 1µF, RL = 16Ω

RL >= 16Ω

Cout = 470µF

Tamb = 25°C

Cout = 220µF

1000

Cout = 100µF

1000

100

10000

Frequency (Hz)

100000

100

10000

Frequency (Hz)

100000

26/31

TS486-TS487

APPLICATION NOTE:

TS486/487 GENERAL DESCRIPTION

Gain = 20 Log(R

/R )

FEED IN

dB

TS486/487 is a family of dual audio amplifiers able

to drive 16Ω or 32Ω headsets. Working in the 2V to

5.5V supply voltage range, they deliver 100mW at

5V and 12mW at 2V in a 16Ω load. An internal

output current limitation, offers protection against

short-circuits at the output over a limited time

period.

Fixed gain versions TS486-n and TS487-n

including R and R

are proposed to reduce

FEED

IN

external parts.

LOW FREQUENCY ROLL-OFF WITH INPUT

CAPACITORS

The low roll-off frequency of the headphone

amplifiers depends on the input capacitors C

IN1

.

Fixed gain versions of the TS486 and TS487

including the feedback resistor and the input

resistors are also proposed to reduce the number

of external parts.

and C

and the input resistors R

and R

IN2

IN1

IN2

The C capacitor in series with the input resistor

IN

R

of the amplifier is equivalent to a first order

IN

high pass filter.

The TS486 and TS487 exhibit a low quiescent

current of typically 1.8mA, allowing usage in

portable applications.

Assuming that F

is the lowest frequency to be

min

amplified (with a 3dB attenuation), the minimum

value of C is:

IN

The standby mode is selected using the

SHUTDOWN input. For TS486 (respectively

TS487), the device is in sleep mode when PIN 5 is

C

> 1 / (2*π*F *R

)

IN

min IN

connected at GND (resp. V ).

The following curve gives directly the low

frequency roll-off versus the input capacitor C

CC

IN

GAIN SETTING

The gain of each inverter amplifier of the TS486

and TS487 is set by the resistors R and R

.

FEED

IN

Gain

= -(R

/R )

FEED IN

LINEAR

27/31

TS486-TS487

and for various values of the input resistor R

.

frequency versus the output capacitor C

in µF

OUT

IN

and for the two typical 16Ω and 32Ω impedances:

1000

Rin = 1k

Ω

Rin = 10k

Ω

100

10

1

100

RL = 16

Ω

RL = 32

Ω

Rin = 100k

Ω

10

1

Rin = 20k

Ω and

fixed gain versions

0.01

0.1

1

10

Cin (µF)

10

100

1000

10000

C_OUT

( F)

The input resistance of the fixed gain version is

typically 20kΩ.

DECOUPLING CAPACITOR C

B

The following curve shows the limits of the roll off

frequency depending on the min. and max. values

of Rin:

The internal bias voltage at Vcc/2 is decoupled

with the external capacitor C .

B

The TS486 and TS487 have a specified Power

Supply Rejection Ratio parameter with C = 1µF.

B

A higher value of C improves the PSRR, for

B

example, a 4.7µF improves the PSRR by 15dB at

200Hz (please, refer to fig. 76 "PSRR vs Bypass

Capacitor").

Ω

POP PRECAUTIONS

Generally headphones are connected using a

connector as a jack. To prevent a pop in the

headphones when plugged in the jack, a resistor

should be connected in parallel with each

headphone output. This allows the capacitors

Cout to be charged even when no headphone is

plugged.

Ω

LOW FREQUENCY ROLL OFF WITH OUTPUT

CAPACITORS

A resistor of 1 kΩ is high enough to be a negligible

load, and low enough to charge the capacitors

Cout in less than one second.

The DC voltage on the outputs of the TS486/487

is blocked by the output capacitors C

and

OUT1

C

. Each output capacitor C

in series with

OUT2

OUT

the resistance of the load R is equivalent to a first

L

order high pass filter.

Assuming that F

is the lowest frequency to be

min

amplified (with a 3dB attenuation), the minimum

value of C is:

OUT

C

> 1 / (2*π*F *R )

min L

OUT

The following curve gives directly the low roll-off

28/31

TS486-TS487

PACKAGE MECHANICAL DATA

SO-8 MECHANICAL DATA

mm.

TYP

inch

TYP.

DIM.

MIN.

MAX.

MIN.

MAX.

A

A1

A2

B

1.35

1.75

0.053

0.069

0.10

1.10

0.33

0.19

4.80

3.80

0.25

1.65

0.51

0.25

5.00

4.00

0.04

0.010

0.065

0.020

0.010

0.197

0.157

0.043

0.013

0.007

0.189

0.150

C

D

E

e

1.27

0.050

H

5.80

0.25

0.40

6.20

0.50

1.27

0.228

0.010

0.016

0.244

0.020

0.050

h

L

k

˚ (max.)

8

ddd

0.1

0.04

0016023/C

29/31

TS486-TS487

PACKAGE MECHANICAL DATA

30/31

TS486-TS487

PACKAGE MECHANICAL DATA

Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the

consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from

its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications

mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information

previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or

systems without express written approval of STMicroelectronics.

The ST logo is a registered trademark of STMicroelectronics

STMicroelectronics GROUP OF COMPANIES

Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco

Singapore - Spain - Sweden - Switzerland - United Kingdom

http://www.st.com

31/31

型号:	TS486-1IQT
生命周期：	Obsolete
零件包装代码：	DFN
包装说明：	3 X 3 MM, DFN-8
针数：	8
Reach Compliance Code：	unknown
ECCN代码：	EAR99
HTS代码：	8542.33.00.01
风险等级：	5.82
Is Samacsys：	N
标称带宽：	20 kHz
商用集成电路类型：	AUDIO AMPLIFIER
增益：
JESD-30 代码：	S-XDSO-N8
长度：	3 mm
信道数量：	2
功能数量：	1
端子数量：	8
最高工作温度：	85 °C
最低工作温度：	-40 °C
标称输出功率：	0.108 W
封装主体材料：	UNSPECIFIED
封装代码：	HVSON
封装形状：	SQUARE
封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
认证状态：	Not Qualified
座面最大高度：	1 mm
最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	2 V
表面贴装：	YES
温度等级：	INDUSTRIAL
端子形式：	NO LEAD
端子节距：	0.5 mm
端子位置：	DUAL
宽度：	3 mm
Base Number Matches：	1

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