TEA7532FP-T应用文章市场行情现货热卖使用介绍供应商报价-中国IC网-芯三七

TEA7533

MONITOR AMPLIFIER

7 DIGITALLY PROGRAMMABLE GAINS IN

STEPS OF 4.5dB

ON/OFF POSITION

LOW VOLTAGE (3.5V to 6.5V)

POWER: >140mW at 5V; >250mW at 6.5V

SO20

DESCRIPTION

ORDERING NUMBER: TEA7533FP

This 20 pins IC is designed for monitoring and

loudspeaker telephone set and provides:

a) signal amplification for monitoring (loudspeaker).

b) antiacoustic feedback (antilarsen).

c) antidistortion by automatic level adaptation.

d) antilarsen adjustment (full duplex).

e) antidistortion by automatic gain adaptation in

current supply mode.

feeds it to the loudspeaker. PG0, PG1 and PG2

inputs are used to set the loudspeaker gain in a

range of 32dB to 5dB in 7 steps of 4.5dB.

The TEA7533 inputs (PG0, PG1, PG2) allows

also the loudspeaker to be cut-off, thus ensuring

privacy of communication.

f) service audio inputs with internal dedicated

switches.

♦ The antilarsen (antiacoustic feedback) system

is incorporated.

FUNCTIONAL DESCRIPTION

♦ The maximum power available on a 50Ω im-

pedance loudspeaker is 140mW at 5V and

250mW at 6.5V.

TEA7533 performs the following functions:

The circuit amplifies the incoming signal and

BLOCK DIAGRAM

IN2 IN3

20

SW

G0 G1 G2

18 17 16

3

1

GCTRL2

GCTRL1

PROG. LEVEL

12 dB MAX

CL1

CL2

IN1

2

4

5

EARPHONE

0 dB TO -15

+

∑

0 dB TO -20

C4

Vth = 0.6V ctrl

ctrl

12 LS1

R14

R19

C19

CAGC 19

C14

HP

10 µA

LS

AMP

+

C12

VREF

R7

-

V

,

REF

20 dB

14 LS2

0.8V, 1.2V

C7

6

VCC

+

-

VOLTAGE &

CURRENT

MIC1

MIC2

7

8

5V

Supply

+

-

13 REF

REFERENCE

VREF

C8

VREF

9

10

11

15

TEA7533

R8

FAL

C9

TC1

LOUT

GND

C10

R10

C13

R9

D93TL008

September 1993

1/8

TEA7533

PIN DESCRIPTION

N°

1

Symbol

SW

Description

Switch control: IN2 or IN3

Audio Input AVG Controlled

2

IN1

3

IN2

2nd Audio input; No Anti-distortionControl

Intermediate Receive Output (Decoupling capacitor)

Intermediate Receive Input (Decoupling capacitor)

Supply Voltage

4

CL1

5

CL2

6

V_CC

7

MIC1

MIC2

FAL

Microphone input 1

8

Microphone input 2

9

Antilarsen Filter

10

11

12

13

14

15

16

17

18

19

20

TC1

LOUT

LS1

Antilarsen Gain Set up

Status Output, Digital Output.

Loudspeaker Output1

REF

LS2

Reference Voltage; (V_CC- 0.7V/2)

Loudspeaker Output2

GND

PG2

PG1

PG0

CAGC

IN3

Ground

Digital Input; Loudspeaker Level Control

Gain Control Filter Capacitor

3rd Audio Input

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Test Conditions

Unit

V_CC

I_CC

Max. Supply Voltage

7

V

Max Supply Current at t > 300ms

Max Supply Current at t ≤ 300ms

100

150

mA

V_LOGIC

T_op

Voltage Level (logic pins)

-0.6/V_CC+0.6

-20 to +70

V

Operative Temperature Range

Storage Temperature Range

°C

T_stg

-55 to +125

PIN CONNECTION (Top view)

SW1

IN1

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

IN3

CAGC

PG0

PG1

PG2

GND

LS2

IN2

CL1

CL2

Vcc

MIC1

MIC2

FAL

TC1

REF

LS1

LOUT

D93TL033

2/8

TEA7533

ELECTRICAL CHARACTERISTICS (T_amb= 25°C, R_BIAS= 60KΩ; V_G0= V_G1= V_G2= H; V_in= 0Vrms;

V_TG1= 0V; unless otherwise specified)

Symbol

V_CC

Parameter

Supply Voltage

Test Condition

Min.

Typ.

Max.

Unit

3.5

5

6.5

V

I_CC

Supply Current

V_CC= 5V; PG0 = PG1 = PG2 = L

–

0.75

1.6

1

2.1

mA

V

_CC= 5V; PG0 = PG1 = PG2 = H

V_ref

Voltage Reference

(V_CC

0.7)/2

2.15

-

–

1.72

–

V

V_CC= 5V

2.6

I_ref

Current Available at V_ref

Source

Sink

–

30

400

–

µA

IN2 & IN3 AMPLIFIER SECTIONS

G_O

G

Final Stage Gain (V_LS1- V_LS2)/V_CL2

19

20

21

dB

Loudspeaker Amplifier Gain

(V_LS1- V_LS2)/IN3 (or IN2)

V_TC1= 0V; V_IN= 60mVrms

V

_CAGL= 0V

PG2, PG1, PG0

30

25.5

21

16.5

12.0

7.5

3

31.5

27

22.5

18

13.5

9

4.5

-40

33

28.5

24

19.5

15

10.5

6

-30

dB

G111

G110

G101

G100

G011

G010

G001

G000

Gain max

H

L

H

L

H

L

H

L

H

L

H

L

Gain 1st step

Gain 2nd step

Gain 3rd step

Gain 4thstep

Gain 5thstep

Gain 6thstep

Off step

L

H

L

-

V_OFF

Output Offset

G = G111; R_LOAD= 50Ω

-50

-

50

mV

LS DIN

Loudspeaker Dinamic (V_LS1- V_LS2) R_LOAD= 50Ω

V

_CC= 3.5V; THD = 4%

4.5

6.5

5

6.7

-

Vpp

V_CC= 5V; THD = 4%

THD

Output Distortion

V_CC= 5V G = G111(32dB)

SW = L; V_OUT= 2Vrms

SW = H; V_OUT= 2Vrms

-

2

%

IN1 AMPLIFIER SECTION

G₁

Loudspeaker Amplifier Gain

(V_LS1- V_LS2) / IN1

V_CAG(19) = V_REF; V_TC1= 0V

V_IN1= 45mVrms

29.5

–

31.5

1

34.5

2

dB

%

THD1

Distortion

V_IN= 45mVrms

IN1 ANTIDISTORTION SECTION

ALG1

Antilarsen Attenuation on IN1

Chain

V_CAGC= V_REF; V_TC1= 0.8V

–17

–

–15

4.5

–13

6.0

dB

%

ALTHD

Distortion with Antilarsen Active

CAGC THD Distortion with AGC Control

Active

V

_IN1= 80mV

_IN1= 560mV

–

3

10

%

PG

Logic InterfacePG0, PG1, PG2,

SW=L, IN3= ON

PGH

Logical Input High

0

-

0.4 x

(V_CC

-

V

0.7)

PGL

Logical Input Low

0.6 x

V_CC

(V_CC

0.7)

-

I_PGL

I_PGH

Input Current Low state

Input Current High State

V_IN= 0V

-1

-

+1

µA

V_IN= V_CC

ANALOG INTERFACE

I_BIASBiasing Current Analog Inputs

IN1, IN2, IN3, MIC1,MIC2

–

17

100

mA

3/8

TEA7533

ELECTRICAL CHARACTERISTICS (Continued)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

ANTILARSEN SECTION

G_MIC

Microphone Amplifier Gain

V_IN= 4.5mVrms; f = 5KHz

19.5

0.55

21

22.5

0.75

dB

V

= V_FAL/(V_MIC1- V_MIC2

)

V_{TC1 TH}

TC1 Threshold for

0.68

–3dB attenuation on IN1 chain

V_{TC1 LOW}TC1 Level with V_mic= 0 Vrms

0

0.07

1.2

0.2

–

V

< 0.4V

1.1

TC1 H

TC1 L

High Thereshold of LOUT

Comparator

V_LOUT

Low Thereshold of LOUT

Comparator

V

_LOUT> 4.1V

–

0.8

0.9

V

I_LOUTL

I_{LOUT H}

V_{LOUT L}

V_{LOUT H}

Output Current of Comparator

LOUT

V_TC1= 1.5V; V_LOUT= 0.5V

VTC1 = 0.6V; V_LOUT= 3.5V

VTC1 = 1.5V

5

–

20

–1

–

–0.5

0.4

–

µA

V

Output Voltage of Comparator

LOUT

–

0.08

4.33

VTC1 = 0.6V

4.1

V

TEST CIRCUIT

V

REF

R3

R2

R20

100KΩ

VIN1

22nF

C2

22nF

C20

VIN2

VIN3

C1 22nF

I1

V19

C19

3

2

20

1

V1

15

V4

150nF

4

19

C4

470nF

R19

1MΩ

5

6

ICC

TEA7533

13

8

C6

1000µF

VCC

C13

22µF

R8

9

R9 2KΩ

100KΩ

C9

C8

33nF

22nF

R7

10

11

7

C10

R10

100KΩ

C7

22nF

220nF

150KΩ

12

14

16

17

18

V10

I11

C12

VMIC1

R14

470pF

V12-V14

R12

D93TL039

VCC

50Ω

4/8

TEA7533

Figure 1: IN1 Channel - AGC Gain (Typical)

Figure 2: IN1 Channel (V_CAGC– V_REF

)

GAIN

D93TL034A

VLS1-VLS2

V

-

CAGC

D93TL035A

IN1

30

REF 150

(dB)

(mV)

28

26

24

22

20

18

16

14

12

10

8

135

120

105

90

75

60

45

30

15

0

6

0.05 0.15 0.25 0.35 0.45 0.55 0.65 0.75 0.85 0.95

(V

0.05 0.15 0.25 0.35 0.45 0.55 0.65 0.75 0.85 0.95

(V

V

)

IN1 RMS

V

)

IN1 RMS

Figure 3: IN1 Channel – Distortion (Typical)

Figure 4: IN3 and IN2 Channels – Distortion

D93TL036A

THD

(%)

THD

(%)

D93TL037A

9

8

4.5

300Hz

4.0

3.5

7

6

5

4

3

2

1

0

3.0

2.5

2.0

1.5

1.0

0.5

1KHz

R

LOAD

=50Ω

R

=100Ω

LOAD

0.05 0.15 0.25 0.35 0.45 0.55 0.65 0.75 0.85 0.95

(V

0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00

-V (V

V

)

V

)

LS1 LS2 RMS

IN1 RMS

5/8

TEA7533

Figure 5: Time Diagram for TC1 (Antilarsen) and LOUT.

TX PATH

1.2V

ANTILARSEN

OUTPUT (TC1)

LOUT HYSTERESIS

0.8V

0.6V

ANTILARSEN

THRESHOLD

ANTILARSEN OFF

ANTILARSEN ON

ANTILARSEN OFF

LOGIC

OUTPUT

(LOUT)

(*) SQUELCH ON

(*) SQUELCH OFF

(*) SQUELCH ON

D93TL038

(*) SQUELCH FUNCTION CAN BE ACTIVATED EXTERNALLY BASED ON LOUT COMMAND

6/8

TEA7533

SO20 PACKAGE MECHANICAL DATA

mm

inch

Typ.

DIM.

Min.

Typ.

Max.

2.65

0.2

Min.

Max.

0.104

0.008

0.096

0.019

0.013

A

a1

a2

b

0.1

0.004

2.45

0.49

0.32

0.35

0.23

0.014

0.009

b1

C

0.5

0.020

c1

D

E

45^o(typ.)

12.6

10

13.0

0.496

0.394

0.510

0.419

10.65

e

1.27

0.050

0.450

e3

F

11.43

7.4

0.5

7.6

0.291

0.020

0.300

0.050

0.030

L

1.27

0.75

M

S

8^o(max.)

7/8

TEA7533

Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics 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 SGS-THOMSON Microelectronics. Specifications men-

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

SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without ex-

press written approval of SGS-THOMSON Microelectronics.

1994 SGS-THOMSON Microelectronics - AllRights Reserved

SGS-THOMSON Microelectronics GROUP OF COMPANIES

Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands

Singapore - Spain - Sweden - Switzerland - Taiwan - Thaliand - United Kingdom - U.S.A.

8/8

型号:	TEA7533FP
是否Rohs认证：	不符合
生命周期：	Obsolete
零件包装代码：	SOIC
包装说明：	SO-20
针数：	20
Reach Compliance Code：	not_compliant
ECCN代码：	EAR99
HTS代码：	8542.33.00.01
风险等级：	5.91
商用集成电路类型：	AUDIO AMPLIFIER
增益：	40 dB
谐波失真：	4%
JESD-30 代码：	R-PDSO-G20
JESD-609代码：	e0
长度：	12.8 mm
信道数量：	1
端子数量：	20
最高工作温度：	70 °C
最低工作温度：	-20 °C
标称输出功率：	0.25 W
封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP
封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE
认证状态：	Not Qualified
座面最大高度：	2.65 mm
最大压摆率：	2.1 mA
最大供电电压 (Vsup)：	6.5 V
最小供电电压 (Vsup)：	3.5 V
表面贴装：	YES
温度等级：	COMMERCIAL
端子面层：	Tin/Lead (Sn/Pb)
端子形式：	GULL WING
端子节距：	1.27 mm
端子位置：	DUAL
宽度：	7.5 mm
Base Number Matches：	1

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