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TS482

100mW STEREO HEADPHONE AMPLIFIER

■ Operating from Vcc=2V to 5.5V

PIN CONNECTIONS (top view)

■ 100mW into 16Ω at 5V

■ 38mW into 16Ω at 3.3V

TS482ID, TS482IDT - SO8

■ 11.5mW into 16Ω at 2V

■ Switch ON/OFF click reduction circuitry

1

2

3

4

8

7

6

5

VCC

O

UT (1)

■High Power Supply Rejection Ratio: 85dB at

O

UT (2)

VIN- (1)

VIN+ (1)

GND

5V

VIN- (2)

VIN+ (2)

■ High Signal-to-Noise ratio: 110dB(A) at 5V

■ High Crosstalk immunity: 100dB (F=1kHz)

■ Rail to Rail input and output

TS482IST - MiniSO8

■ Unity-Gain Stable

■ Available in SO8, MiniSO8 & DFN8

1

2

3

4

8

7

6

5

VCC

O

UT (1)

DESCRIPTION

O

UT (2)

VIN- (1)

VIN+ (1)

GND

The TS482 is a dual audio power amplifier able to

drive a 16 or 32Ω stereo headset down to low volt-

ages.

VIN- (2)

VIN+ (2)

TS482IQT - DFN8

It’s delivering up to 100mW per channel (into 16Ω

loads) of continuous average power with 0.1%

THD+N from a 5V power supply.

1

OUT (1)

Vcc

8

7

6

5

2

3

4

VIN - (1)

VIN + (1)

OUT ⁽²⁾

The unity gain stable TS482 can be configured by

external gain-setting resistors.

VIN - (2)

GND

VIN + (2)

APPLICATIONS

TYPICAL APPLICATION SCHEMATIC

■Stereo Headphone Amplifier

■ Optical Storage

■ Computer Motherboard

Rfeed1

■ PDA, organizers & Notebook computers

■ High end TV, Set Top Box, DVD Players

■ Sound Cards

1µF

Vcc

3.9k

Rpol

+

Vcc

100k

Cs

3.9k

Right In

Cin1

8

220µF

+

2

3

RL=32Ohms

-

+

1

+

Rin1

2.2µF

Cb

ORDER CODE

Cout1

TS482

+

-

+

Cout2

5

6

2.2µF

7

1µF

Rin2

Package

Temperature

+

220µF

Part Number

Marking

3.9k

4

Left In Cin2

Range

100k

Rpol

D

S

Q

3.9k

TS482ID/DT

TS482IST

TS482IQT

•

Rfeed2

-40, +85°C

•

482I

•

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

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

June 2003

1/24

TS482

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

1)

V

6

V

Supply voltage

Input Voltage

CC

V

-0.3 to V_CC+0.3

-40 to + 85

-65 to +150

150

i

T

Operating Free Air Temperature Range

Storage Temperature

°C

oper

T

stg

T

Maximum Junction Temperature

j

Thermal Resistance Junction to Ambient

R

thja

SO8

175

215

70

MiniSO8

DFN8

°C/W

W

2)

Power Dissipation

0.71

0.58

1.79

SO8

MiniSO8

DFN8

Pd

ESD

Human Body Model (pin to pin)

2

kV

V

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

200

250

Latch-up Latch-up Immunity (All pins)

Lead Temperature (soldering, 10sec)

Output Short-Circuit Duration

mA

°C

3)

see note

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

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

3. Attention must be paid to continuous power dissipation. Exposure of the IC to a short circuit on one or two amplifiers simultaneously can cause exces-

sive heating and the destruction of the device.

OPERATING CONDITIONS

Symbol

Parameter

Value

Unit

V

Supply Voltage

Load Resistor

Load Capacitor

2 to 5.5

>= 16

V

CC

R

Ω

L

R = 16 to 100Ω

C

400

100

pF

V

L

R > 100Ω

L

V

G

to V

CC

Common Mode Input Voltage Range

ICM

ND

Thermal Resistance Junction to Ambient

SO8

MiniSO8

150

190

41

R

THJA

°C/W

1)

DFN8

1. When mounted on a 4-layer PCB.

Components

Functional Description

Inverting input resistor which sets the closed loop gain in conjunction with Rfeed. This resistor also

forms a high pass filter with Cin (fc = 1 / (2 x Pi x Rin x Cin))

Rin

Cin

Rfeed

Cs

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

Feed back resistor which sets the closed loop gain in conjunction with Rin

Supply Bypass capacitor which provides power supply filtering

Bypass capacitor which provides half supply filtering

Cb

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

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

Cout

Rpol

Av

These 2 resistors form a voltage divider which provide a DC biasing voltage (Vcc/2) for the 2 amplifiers.

Closed loop gain = -Rfeed / Rin

2/24

TS482

ELECTRICAL CHARACTERISTICS

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

Symbol

Parameter

Min.

Typ.

Max.

Unit

Supply Current

I

mA

CC

No input signal, no load

5.5

1

7.2

5

V

Input Offset Voltage (V

= V /2)

ICM CC

mV

nA

IO

I

Input Bias Current (V

= V /2)

CC

200

500

IB

ICM

Output Power

THD+N = 0.1% Max, F = 1kHz, R = 32Ω

L

65

THD+N = 1% Max, F = 1kHz, R = 32Ω

P

60

95

67.5

100

107

mW

%

L

O

THD+N = 0.1% Max, F = 1kHz, R = 16Ω

L

THD+N = 1% Max, F = 1kHz, R = 16Ω

L

1)

Total Harmonic Distortion + Noise (A =-1)

v

THD + N

PSRR

0.03

R = 32Ω, P = 60mW, 20Hz ≤ F ≤ 20kHz

R = 16Ω, P = 90mW, 20Hz ≤ F ≤ 20kHz

L

out

L

out

Power Supply Rejection Ratio (A =1), inputs floating

v

85

dB

F = 100Hz, Vripple = 100mVpp

Max Output Current

I

106

120

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

0.4

4.6

0.55

4.4

0.48

0.65

: R = 32Ω

V

4.45

4.2

V

L

O

: R = 16Ω

L

: R = 16Ω

L

Signal-to-Noise Ratio (Filter Type A, A =-1)

v

SNR

95

110

dB

(R = 32Ω, THD +N < 0.2%, 20Hz ≤ F ≤ 20kHz)

L

Channel Separation, R = 32Ω

L

F = 1kHz

F = 20Hz to 20kHz

100

80

Crosstalk

dB

Channel Separation, R = 16Ω

L

100

80

F = 1kHz

F = 20Hz to 20kHz

C

Input Capacitance

1

pF

I

Gain Bandwidth Product (R = 32Ω)

GBP

SR

1.35

0.45

2.2

0.7

MHz

V/µs

L

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

L

1. Fig. 68 to 79 show dispersion of these parameters.

3/24

TS482

ELECTRICAL CHARACTERISTICS

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

2)

Symbol

Parameter

Min.

Typ.

Max.

Unit

Supply Current

I

mA

CC

No input signal, no load

5.3

1

7.2

5

V

Input Offset Voltage (V

= V /2)

ICM CC

mV

nA

IO

I

Input Bias Current (V

= V /2)

CC

200

500

IB

ICM

Output Power

THD+N = 0.1% Max, F = 1kHz, R = 32Ω

L

27

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

1)

Total Harmonic Distortion + Noise (A =-1)

v

THD + N

PSRR

0.03

R = 32Ω, P = 16mW, 20Hz ≤ F ≤ 20kHz

R = 16Ω, P = 35mW, 20Hz ≤ F ≤ 20kHz

L

out

L

out

Power Supply Rejection Ratio (A =1), inputs floating

v

80

75

dB

F = 100Hz, Vripple = 100mVpp

Max Output Current

I

64

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

2.85

0.38

0.52

: R = 32Ω

V

2.85

2.68

V

L

O

: R = 16Ω

L

: R = 16Ω

L

Signal-to-Noise Ratio (Filter Type A, A =-1)

v

SNR

92

107

dB

(R = 32Ω, THD +N < 0.2%, 20Hz ≤ F ≤ 20kHz)

L

Channel Separation, R = 32Ω

L

F = 1kHz

F = 20Hz to 20kHz

100

80

Crosstalk

dB

Channel Separation, R = 16Ω

L

100

80

F = 1kHz

F = 20Hz to 20kHz

C

Input Capacitance

1

2

pF

I

Gain Bandwith Product (R = 32Ω)

GBP

SR

1.2

MHz

V/µs

L

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

0.45

0.7

L

1. Fig. 68 to 79 show dispersion of these parameters.

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

4/24

TS482

ELECTRICAL CHARACTERISTICS

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

2)

Symbol

Parameter

Min.

Typ.

Max.

Unit

Supply Current

I

mA

CC

No input signal, no load

5.1

1

7.2

5

V

Input Offset Voltage (V

= V /2)

ICM CC

mV

nA

IO

I

Input Bias Current (V

= V /2)

CC

200

500

IB

ICM

Output Power

THD+N = 0.1% Max, F = 1kHz, R = 32Ω

L

13.5

14.5

20.5

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

1)

Total Harmonic Distortion + Noise (A =-1)

v

THD + N

PSRR

0.03

R = 32Ω, P = 10mW, 20Hz ≤ F ≤ 20kHz

R = 16Ω, P = 16mW, 20Hz ≤ F ≤ 20kHz

L

out

L

out

Power Supply Rejection Ratio (A =1), inputs floating

v

75

56

dB

F = 100Hz, Vripple = 100mVpp

Max Output Current

I

45

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

0.325

0.45

: R = 32Ω

V

2.14

1.97

V

L

O

: R = 16Ω

L

: R = 16Ω

L

Signal-to-Noise Ratio (Filter Type A, A =-1)

v

SNR

89

102

dB

(R = 32Ω, THD +N < 0.2%, 20Hz ≤ F ≤ 20kHz)

L

Channel Separation, R = 32Ω

L

F = 1kHz

F = 20Hz to 20kHz

100

80

Crosstalk

dB

Channel Separation, R = 16Ω

L

100

80

F = 1kHz

F = 20Hz to 20kHz

C

Input Capacitance

1

2

pF

I

Gain Bandwidth Product (R = 32Ω)

GBP

SR

1.2

MHz

V/µs

L

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

0.45

0.7

L

1. Fig. 68 to 79 show dispersion of these parameters.

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

5/24

TS482

ELECTRICAL CHARACTERISTICS

V

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

Symbol

Parameter

Min.

Typ.

Max.

Unit

Supply Current

I

mA

CC

No input signal, no load

5

1

7.2

5

V

Input Offset Voltage (V

= V /2)

ICM CC

mV

nA

IO

I

Input Bias Current (V

= V /2)

CC

200

500

IB

ICM

Output Power

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 = 0.1% Max, F = 1kHz, R = 16Ω

11.5

13

L

9.5

THD+N = 1% Max, F = 1kHz, R = 16Ω

L

1)

Total Harmonic Distortion + Noise (A =-1)

v

THD + N

PSRR

0.02

0.025

R = 32Ω, P = 6.5mW, 20Hz ≤ F ≤ 20kHz

L

out

R = 16Ω, P = 8mW, 20Hz ≤ F ≤ 20kHz

L

out

Power Supply Rejection Ratio (A =1), inputs floating

v

75

dB

F = 100Hz, Vripple = 100mVpp

Max Output Current

I

33

41.5

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

0.295

0.41

: R = 32Ω

V

1.67

1.53

V

L

O

: R = 16Ω

L

: R = 16Ω

L

Signal-to-Noise Ratio (Filter Type A, A =-1)

v

SNR

88

101

dB

(R = 32Ω, THD +N < 0.2%, 20Hz ≤ F ≤ 20kHz)

L

Channel Separation, R = 32Ω

L

F = 1kHz

F = 20Hz to 20kHz

100

80

Crosstalk

dB

Channel Separation, R = 16Ω

L

100

80

F = 1kHz

F = 20Hz to 20kHz

C

Input Capacitance

1

2

pF

I

Gain Bandwith Product (R = 32Ω)

GBP

SR

1.2

MHz

V/µs

L

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

0.42

0.65

L

1. Fig. 68 to 79 show dispersion of these parameters.

6/24

TS482

Index of Graphs

Description

Figure

Page

Open Loop Gain

1 to 10

11 to 20

21 to 23

23 to 27

28 to 31

32

8, 9

9 to 11

11

Phase and Gain Margin vs Power Supply Voltage

Output Power vs Power Supply Voltage

Output Power vs Load Resistance

Power Dissipation vs Output Power

Power Derating Curves

11, 12

12, 13

13

Current Consumption vs Power Supply Voltage

PSRR vs Frequency

33

13

34

13

THD + N vs Output Power

35 to 49

50 to 54

55 to 58

59

13 to 16

16

THD + N vs Frequency

Signal to Noise Ratio vs Power Supply Voltage

Equivalent Input Noise voltage vs Frequency

Output Voltage Swing vs Supply Voltage

Crosstalk vs Frequency

17

60

17

61 to 65

66, 67

68 to 79

18

Lower Cut Off Frequency Curves

Statistical Results on THD+N

18, 19

19 to 21

7/24

TS482

Fig. 1 : Open Loop Gain and Phase vs

Frequency

Fig. 2 : Open Loop Gain and Phase vs

Frequency

80

180

160

140

120

100

80

180

160

140

120

100

80

Vcc = 5V

Gain

Vcc = 2V

Gain

RL = 8

Ω

RL = 8Ω

60

40

20

0

60

40

20

0

Tamb = 25

°C

Tamb = 25°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. 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 = 5V

Vcc = 2V

RL = 16Ω

Tamb = 25°C

80

60

40

20

0

80

60

40

20

0

Gain

RL = 16

Ω

Tamb = 25

°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. 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

Vcc = 2V

RL = 32Ω

Tamb = 25°C

80

60

40

20

0

80

60

40

20

0

Gain

RL = 32

Ω

Tamb = 25

°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)

8/24

TS482

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 = 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. 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 = 5k

Tamb = 25

Vcc = 2V

RL = 5k

Tamb = 25

80

Gain

Ω

°C

60

40

20

0

60

40

20

0

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 : Phase Margin vs Power Supply

Voltage

Fig. 12 : Gain Margin vs Power Supply Voltage

50

RL=8Ω

Tamb=25°C

40

30

20

10

0

40

30

20

10

0

CL= 0 to 500pF

CL=0 to 500pF

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)

9/24

TS482

Fig. 13 : Phase Margin vs Power Supply

Voltage

Fig. 14 : Gain Margin vs Power Supply Voltage

50

40

50

RL=16

Tamb=25

Ω

°C

40

30

20

10

0

30

20

10

0

CL= 0 to 500pF

CL=0 to 500pF

RL=16

Tamb=25

Ω

°C

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)

Fig. 15 : Phase Margin vs Power Supply

Voltage

Fig. 16 : Gain Margin vs Power Supply Voltage

50

RL=32

Tamb=25

Ω

°

C

40

30

20

10

0

CL= 0 to 500pF

30

20

10

CL=0 to 500pF

RL=32

Tamb=25

Ω

°

C

0

2.0

2.5

3.0

3.5

4.0

4.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

Power Supply Voltage (V)

Fig. 17 : Phase Margin vs Power Supply

Voltage

Fig. 18 : Gain Margin vs Power Supply Voltage

70

60

50

20

CL=0pF

CL=100pF

CL=0pF

CL=500pF

CL=200pF

40

30

20

10

0

10

CL=500pF

RL=600

Tamb=25

Ω

RL=600

Tamb=25

Ω

°C

0

2.0

2.5

3.0

3.5

4.0

4.5

2.5

3.0

3.5

4.0

4.5

5.0

Power Supply Voltage (V)

10/24

TS482

Fig. 19 : Phase Margin vs Power Supply

Voltage

Fig. 20 : Gain Margin vs Power Supply Voltage

70

60

50

20

CL=0pF

CL=100pF

CL=0pF

CL=300pF

CL=500pF

40

30

20

10

0

CL=200pF

10

CL=500pF

RL=5k

Tamb=25

Ω

RL=5kΩ

°C

Tamb=25°C

0

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. 21 : Output Power vs Power Supply

Voltage

Fig. 22 : Output Power vs Power Supply

Voltage

250

200

Av = -1

175

225

RL = 8

Ω

RL = 16

Ω

THD+N=1%

F = 1kHz

BW < 125kHz

Tamb = 25°C

200

175

150

125

100

75

F = 1kHz

BW < 125kHz

Tamb = 25°C

150

125

100

75

THD+N=10%

50

THD+N=0.1%

25

0

2.0

0

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

2.5

3.0

3.5

4.0

4.5

5.0

5.5

Vcc (V)

Fig. 23 :Output Power vs Power Supply

Voltage

Fig. 24 : Output Power vs Load Resistance

200

Av = -1

RL = 32

F = 1kHz

BW < 125kHz

Av = -1

180

Ω

Vcc = 5V

F = 1kHz

BW < 125kHz

Tamb = 25°C

100

75

50

25

0

THD+N=1%

160

140

120

100

80

Tamb = 25°C

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 (

11/24

TS482

Fig. 25 : Output Power vs Load Resistance

Fig. 26 : Output Power vs Load Resistance

50

70

60

50

40

30

20

10

0

Av = -1

Vcc = 3.3V

F = 1kHz

BW < 125kHz

Tamb = 25°C

Av = -1

Vcc = 2.6V

F = 1kHz

45

THD+N=1%

40

35

30

25

20

15

10

5

BW < 125kHz

Tamb = 25°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 (ohm)

Fig. 27 : Output Power vs Load Resistance

Fig. 28 : Power Dissipation vs Output Power

25

160

140

120

100

80

Vcc=5V

F=1kHz

THD+N<1%

Av = -1

Vcc = 2V

F = 1kHz

BW < 125kHz

Tamb = 25°C

20

15

10

5

RL=8Ω

THD+N=1%

THD+N=10%

60

RL=16Ω

40

20

RL=32Ω

THD+N=0.1%

0

20

40

60

80

100

120

140

8

16

24

32

40

48

56

64

Output Power (mW)

Load Resistance (ohm)

Fig. 29 : Power Dissipation vs Output Power

Fig. 30 : Power Dissipation vs Output Power

70

Vcc=2.6V

F=1kHz

THD+N<1%

Vcc=3.3V

F=1kHz

THD+N<1%

40

60

RL=8Ω

50

40

30

20

10

0

30

20

10

0

RL=16

Ω

RL=16

Ω

RL=32

Ω

RL=32

Ω

0

5

10

15

20

25

30

0

10

20

30

40

50

60

Output Power (mW)

12/24

TS482

Fig. 31 : Power Dissipation vs Output Power

Fig. 32 : Power Derating vs Ambiant

Temperature

25

Vcc=2V

F=1kHz

THD+N<1%

20

15

10

5

RL=8Ω

RL=16

Ω

RL=32

Ω

0

2

4

6

8

10

12

14

Output Power (mW)

Fig. 33 : Current Consumption vs Power

Supply Voltage

Fig. 34 : Power Supply Rejection Ration vs

Frequency

6

No load

Vcc=5V

100

5

80

4

Ta=85°C

Ta=-40°C

Vcc=3.3V

Vcc=2.6V & 2V

60

40

20

0

3

Ta=25°C

Vripple=100mVpp

Vpin3,5=Vcc/2 (forced bias)

RL >= 8

0db=70mVrms

2

1

0

Ω

Tamb=25

°C

20

100

1000

10000

100000

0

1

2

3

4

5

Frequency (Hz)

Power Supply Voltage (V)

Fig. 35 : THD + N vs Output Power

Fig. 36 : THD + N vs Output Power

10

RL = 8

Ω

RL = 16Ω

F = 20Hz

Av = -1

BW < 125kHz

F = 20Hz

Av = -1

BW < 125kHz

1

0.1

1

0.1

Tamb = 25

°C

Tamb = 25°C

Vcc=2V

Vcc=2.6V

Vcc=3.3V

Vcc=2.6V

0.01

1E-3

Vcc=5V

100

Vcc=3.3V

10

Vcc=5V

0.01

1

10

1

100

Output Power (mW)

13/24

TS482

Fig. 37 : THD + N vs Output Power

Fig. 38 : THD + N vs Output Power

10

RL = 32

F = 20Hz

Av = -1

BW < 125kHz

Tamb = 25°C

Ω

RL = 600

F = 20Hz

Av = -1

BW < 125kHz

Tamb = 25

Ω

Vcc=2V

1

0.1

1

0.1

Vcc=2.6V

Vcc=3.3V

°

C

Vcc=2V

Vcc=5V

Vcc=2.6V

0.01

1E-3

Vcc=3.3V

10

Vcc=5V

1E-3

1

100

0.01

0.1

Output Voltage (Vrms)

1

Output Power (mW)

Fig. 39 : THD + N vs Output Power

Fig. 40 : THD + N vs Output Power

10

RL = 8

F = 1kHz

Av = -1

BW < 125kHz

Ω

RL = 5k

F = 20Hz

Av = -1

BW < 125kHz

Tamb = 25°C

Ω

Vcc=2V

Vcc=2.6V

Vcc=3.3V

1

0.1

1

0.1

Tamb = 25°C

Vcc=2V

Vcc=5V

Vcc=2.6V

Vcc=3.3V

0.01

Vcc=5V

100

1E-3

0.01

1

10

0.01

0.1

Output Voltage (Vrms)

1

Output Power (mW)

Fig. 41 : THD + N vs Output Power

Fig. 42 : THD + N vs Output Power

10

RL = 32

F = 1kHz

Av = -1

BW < 125kHz

Ω

RL = 16

F = 1kHz

Av = -1

BW < 125kHz

Ω

1

0.1

1

0.1

Tamb = 25°C

Vcc=2V

Vcc=2.6V

0.01

1E-3

0.01

1E-3

Vcc=3.3V

10

Vcc=5V

Vcc=3.3V

10

Vcc=5V

1

100

1

100

Output Power (mW)

14/24

TS482

Fig. 43 : THD + N vs Output Power

Fig. 44 : THD + N vs Output Power

10

RL = 600

F = 1kHz

Av = -1

BW < 125kHz

Tamb = 25

Ω

RL = 5kΩ

F = 1kHz

Av = -1

BW < 125kHz

Vcc=2V

1

0.1

1

0.1

Vcc=2.6V

Vcc=3.3V

Vcc=2.6V

Vcc=3.3V

°

C

Tamb = 25°C

Vcc=5V

0.01

1E-3

0.01

1E-3

0.01

0.1

Output Voltage (Vrms)

1

0.01

0.1

Output Voltage (Vrms)

1

Fig. 45 : THD + N vs Output Power

Fig. 46 : THD + N vs Output Power

10

RL = 16

Ω

RL = 8

Ω

F = 20kHz

Av = -1

F = 20kHz

Av = -1

BW < 125kHz

Tamb = 25°C

BW < 125kHz

Tamb = 25°C

1

0.1

1

0.1

Vcc=2V

Vcc=2.6V

Vcc=5V

Vcc=3.3V

10

Vcc=5V

0.01

1

10

Output Power (mW)

100

1

100

Output Power (mW)

Fig. 47 : THD + N vs Output Power

Fig. 48 : THD + N vs Output Power

10

RL = 32

F = 20kHz

Av = -1

BW < 125kHz

Tamb = 25°C

Ω

RL = 600

F = 20kHz

Av = -1

BW < 125kHz

Tamb = 25°C

Ω

Vcc=2V

1

0.1

Vcc=2.6V

Vcc=3.3V

1

0.1

Vcc=2V

Vcc=5V

Vcc=2.6V

0.01

Vcc=3.3V

10

Vcc=5V

1

100

0.01

0.1

Output Voltage (Vrms)

1

Output Power (mW)

15/24

TS482

Fig. 49 : THD + N vs Output Power

Fig. 50 : THD + N vs Frequency

0.1

10

RL=8Ω

Av=-1

Bw < 125kHz

Tamb=25°C

RL = 5k

F = 20kHz

Av = -1

BW < 125kHz

Tamb = 25°C

Ω

Vcc=2V

Vcc=2.6V

Vcc=3.3V

Vcc=2V, Po=10mW

Vcc=2.6V, Po=20mW

Vcc=3.3V, Po=40mW

Vcc=5V, Po=100mW

1

0.1

Vcc=5V

0.01

20

100

1000

10000 20k

0.01

0.1

Output Voltage (Vrms)

1

Frequency (Hz)

Fig. 51 : THD + N vs Frequency

Fig. 52 : THD + N vs Frequency

0.1

RL=16Ω

RL=32Ω

Av=-1

Bw < 125kHz

Tamb=25°C

Bw < 125kHz

Tamb=25°C

Vcc=2V, Po=6.5mW

Vcc=2.6V, Po=12mW

Vcc=2V, Po=8mW

Vcc=2.6V, Po=18mW

Vcc=3.3V, Po=35mW

Vcc=5V, Po=90mW

Vcc=3.3V, Po=16mW

Vcc=5V, Po=60mW

0.01

20

100

1000

10000 20k

20

100

1000

10000 20k

Frequency (Hz)

Fig. 53 : THD + N vs Frequency

Fig. 54 : THD + N vs Frequency

0.1

RL=600Ω

Av=-1

RL=5k

Av=-1

Ω

Bw < 125kHz

Tamb=25°C

Bw < 125kHz

Tamb=25

Vcc=5V, Vo=1.4Vrms

Vcc=3.3V, Vo=1Vrms

°C

Vcc=5V, Vo=1.4Vrms

Vcc=3.3V, Vo=1Vrms

Vcc=2.6V, Vo=0.75Vrms

Vcc=2V, Vo=0.55Vrms

0.01

1E-3

Vcc=2.6V, Vo=0.75Vrms

Vcc=2V, Vo=0.55Vrms

1E-3

20

100

1000

10000 20k

20

100

1000

Frequency (Hz)

10000 20k

Frequency (Hz)

16/24

TS482

Fig. 55 : Signal to Noise Ratio vs Power Supply

VoltagewithUnweightedFilter(20Hzto20kHz)

Fig. 56 : Signal to Noise Ratio vs Power Supply

Voltage with Unweighted Filter (20Hz to 20kHz)

110

Av = -1

THD+N < 0.2%

Av = -1

108

THD+N < 0.2%

Tamb = 25°C

106

104

102

100

98

106

104

102

100

98

RL=32

Ω

RL=600Ω

RL=5kΩ

96

RL=8Ω

94

RL=16

Ω

92

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 (V)

Fig. 57 : Signal to Noise Ratio vs Power Supply

Voltage with Weighted Filter Type A

Fig. 58 : Signal to Noise Ratio vs Power Supply

Voltage with Weighted Filter Type A

120

Av = -1

THD+N < 0.2%

Tamb = 25°C

THD+N < 0.2%

Tamb = 25°C

115

110

105

100

95

RL=32

Ω

105

RL=600Ω

RL=5kΩ

100

RL=8Ω

RL=16

Ω

95

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 (V)

Fig. 59 : Equivalent Input Noise Voltage vs

Frequency

Fig. 60 : Output Voltage Swing vs Power

Supply Voltage

25

5.0

Tamb=25°C

Vcc=5V

Rs=100Ω

Tamb=25°C

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0.0

20

15

10

5

RL=32

Ω

RL=16

Ω

RL=8

Ω

0.02

0.1

1

10

2.0

2.5

3.0

3.5

4.0

4.5

5.0

Power Supply Voltage (V)

Frequency (kHz)

17/24

TS482

Fig. 61 : Crosstalk vs Frequency

Fig. 62 : Crosstalk vs Frequency

100

80

60

40

20

80

60

40

20

ChB to ChA

ChA to ChB

ChB to ChA

ChA to ChB

RL=16

Vcc=5V

Pout=90mW

Av=-1

Bw < 125kHz

Ω

RL=8

Vcc=5V

Pout=100mW

Av=-1

Bw < 125kHz

Ω

Tamb=25°C

20

100

1000

10000 20k

20

100

1000

10000 20k

Frequency (Hz)

Fig. 63 : Crosstalk vs Frequency

Fig. 64 : Crosstalk vs Frequency

120

100

80

60

40

20

ChB to ChA & ChA to Chb

80

60

40

20

0

ChB to ChA & ChA to Chb

RL=32

Vcc=5V

Pout=60mW

Av=-1

Bw < 125kHz

Ω

RL=600

Vcc=5V

Vout=1.4Vrms

Av=-1

Bw < 125kHz

Ω

Tamb=25°C

Tamb=25

°C

20

100

1000

10000 20k

20

100

1000

10000 20k

Frequency (Hz)

Fig. 65 : Crosstalk vs Frequency

Fig. 66 : Lower Cut Off Frequency vs Output

Capacitor

120

100

1000

RL=8Ω

80

60

40

20

0

100

10

1

ChB to ChA & ChA to Chb

RL=16

Ω

RL=32

Ω

RL=5k

Vcc=5V

Vout=1.5Vrms

Av=-1

Bw < 125kHz

Ω

Tamb=25

°C

20

100

1000

10000 20k

200 400 600 800 1000 1200 1400 1600 1800 2000 2200

Frequency (Hz)

Output Capacitor Cout ( F)

18/24

TS482

Fig. 67 : Lower Cut Off Frequency vs Input

Capacitor

Fig. 68 : Typical Distribution of THD+N

40

1000

Vcc=5V

36

RL=16

Ω

Rin=3.9k

Ω

32

28

24

20

16

12

8

Av=-1

Rin=10k

Ω

Pout=90mW

20Hz 20kHz

Tamb=25

≤F≤

100

10

1

Rin=22k

Ω

°C

4

0

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2

0.012 0.018 0.024 0.030 0.036 0.042 0.048

Input Capacitor Cin ( F)

THD+N (%)

Fig. 69 : Best Case Distribution of THD+N

Fig. 70 : Worst Case Distribution of THD+N

40

Vcc=5V

36

RL=16

Ω

RL=16

Ω

32

28

24

20

16

12

8

32

28

24

20

16

12

8

Av=-1

Pout=90mW

20Hz 20kHz

Tamb=25

Pout=90mW

20Hz 20kHz

Tamb=25

≤

F≤

≤F≤

°C

4

0

0.012 0.018 0.024 0.030 0.036 0.042 0.048

THD+N (%)

Fig. 71 : Typical Distribution of THD+N

Fig. 72 : Best Case Distribution of THD+N

40

Vcc=2V

36

RL=16

Ω

RL=16

Ω

32

28

24

20

16

12

8

32

28

24

20

16

12

8

Av=-1

Pout=8mW

20Hz 20kHz

Tamb=25

Pout=8mW

20Hz 20kHz

Tamb=25

≤

F≤

≤F≤

°C

4

0

0.012 0.018 0.024 0.030 0.036 0.042 0.048

THD+N (%)

19/24

TS482

Fig. 73 : Worst Case Distribution of THD+N

Fig. 74 : Typical Distribution of THD+N

40

20

Vcc=5V

Vcc=2V

36

18

RL=32

Ω

RL=16

Ω

32

28

24

20

16

12

8

16

14

12

10

8

Av=-1

Pout=60mW

20Hz 20kHz

Tamb=25

Pout=8mW

20Hz 20kHz

Tamb=25

≤F≤

°C

6

4

2

0

0.012 0.018 0.024 0.030 0.036 0.042 0.048

THD+N (%)

Fig. 75 : Best Case Distribution of THD+N

Fig. 76 : Worst Case Distribution of THD+N

20

Vcc=5V

RL=32Ω

18

RL=32

Ω

16

14

12

10

8

Av=-1

Pout=60mW

20Hz≤F≤20kHz

Tamb=25°C

Pout=60mW

20Hz 20kHz

Tamb=25

14

≤F≤

12

°C

10

8

6

4

2

0

0.012 0.018 0.024 0.030 0.036 0.042 0.048

THD+N (%)

Fig. 77 : Typical Distribution of THD+N

Fig. 78 : Best Case Distribution of THD+N

40

Vcc=2V

36

RL=32

Ω

RL=32

Ω

32

28

24

20

16

12

8

32

28

24

20

16

12

8

Av=-1

Pout=6.5mW

20Hz 20kHz

Tamb=25

Pout=6.5mW

20Hz 20kHz

Tamb=25

≤

F≤

≤F≤

°C

4

0

0.012 0.018 0.024 0.030 0.036 0.042 0.048

THD+N (%)

20/24

TS482

Fig. 79 : Worst Case Distribution of THD+N

40

Vcc=2V

36

RL=32

Ω

32

28

24

20

16

12

8

Av=-1

Pout=6.5mW

20Hz 20kHz

Tamb=25

≤F≤

°C

4

0

0.012 0.018 0.024 0.030 0.036 0.042 0.048

THD+N (%)

21/24

TS482

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

22/24

TS482

PACKAGE MECHANICAL DATA

23/24

TS482

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

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