Datasheet TA7331P, TA7331F Specification

TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic

TA7331P,TA7331F

Low Quiescent Current Audio Power Amplifier

For Mini / Micro Cassette Tape Recorder

The TA7331P and TA7331F are an audio power amplifier
designed for use in low voltage consumer applications.
Especially it is suitable for mini / micro cassette tape recorder
and pocket radio appliocations.
As the quiescent current is only 3mA at 3V, it is best for battery
operation.

Features

TA7331P / F

· Operating supply voltage range
: V
V

· Low quiescent current: I
(V

· TA7331F (SO) is standard model of flat package

CC (opr)

CC (opr)

Output Power Table

Package
Condition

VCC = 3V

VCC = 4.5V

= 2~5V... TA7331P (Ta = 25°C)

= 2~4V... TA7331F (Ta = 25°C)

= 3mA (typ.)

CCQ

= 3V, Ta = 25°C)

CC

(f = 1kHz, THD = 10%, Ta = 25°C)

TA7331P TA7331F

RL = 8Ω 120mW 120mW

RL = 4Ω 200mW 200mW

= 8Ω BTL 400mW 400mW

R

L

RL = 8Ω 300mW

= 4Ω 500mW

R

L

Weight
SIP9−P−2.54A: 0.92g (typ.)
SSOP16−P−225−1.00: 0.14g (typ.)

Cannot use

1

2002-10-30

Test Circuit / Block Diagram

p

p

TA7331P / F

TA7331P

V

CC

100kΩ

V

CC

7

4.7µF

Input

1

AMP

1

10kΩ

~

= 600Ω

g

R

100kΩ

GND

(1)

NF LPF GND

NF

R

= 33µF

NF

C

= 1000pF

LPF

C

47kΩ

10µF

Idle

4

AMP

2

32

59

100Ω

8

6

Output

(2)

Boot stra

220µF

220µF

470µF

0.22µF

L

R

TA7331F

V

CC

IdleV

AMP

47kΩ

10µF

1

2

100Ω

9

5

Output

Boot stra

220µF

220µF

470µF

4.7µF

100kΩ

14

Input

AMP

1

CC

10kΩ

8

11

GND

~

= 600Ω

g

R

100kΩ

(1)

NF LPF GND

NF

R

= 33µF

NF

C

= 1000pF

LPF

C

16

315

(2)

0.22µF

L

R

2

2002-10-30

TA7331P / F

Maximum Ratings

Characteristic Symbol Rating Unit

Supply voltage VCC 8 V

Operating supply
voltage

Power dissipation

Operating temperature T

Storage temperature T

(Ta = 25°C)

TA7331P 5

TA7331F

TA7331P 700

TA7331F

V

CC

PD (Note)

-10~60 °C

opr

-55~150 °C

stg

4

350

V

mW

(Note) Derated above 25°C in the proportion of 5.6mW / °C

for TA7331P and 2.8mW / °C for the TA7331F.

Electrical Characteristics
TA7331P

Unless Otherwise Specified, VCC = 3V, f = 1kHz, RL = 4Ω, Ta = 25°C

Test

Characteristic Symbol

I

Quiescent current

Voltage gain

Output power

Total harmonic
distortion

Output noise voltage Vno ― Rg = 1kΩ, BPF≒50Hz~20kHz ― 0.2 0.4 mV

CCQ (1)

I

CCQ (2)

G

V (1)

G

V (2)

Po (1) ― THD = 10% 170 200 ―

(2) ― RL = 8Ω, THD = 10%, VCC = 4.5V ― 300 ―

P

o

THD (1) ― Po = 100mW, RNF = 0Ω ― 1.0 5

THD (2) ― P

Cir-

cuit

― ― 3 5

― VCC = 4.5V ― 5 6.5

― RNF = 0Ω, CNF = 33µF 47 50 53

― RNF = 82Ω, CNF = 33µF ― 40 ―

o

Test Condition Min. Typ. Max. Unit

= 50mW, RNF = 0Ω, RL = 8Ω ― 0.8 ―

TA7331F

Unless Otherwise Specified, VCC = 3V, f = 1kHz, R

Test

Characteristic Symbol

Quiescent current I

Voltage gain

Output power Po (1) ― THD = 10% 170 200 ― mW

Total harmonic
distortion

Output noise voltage Vno ― Rg = 1kΩ, BPF≒50Hz~20kHz ― 0.2 0.4 mV

CCQ (1)

G

V (1)

G

V (2)

THD (1) ― Po = 100mW, RNF = 0Ω ― 1.0 5

THD (2) ― P

Cir-

cuit

― ― 3 5 mA

― RNF = 0Ω, CNF = 33µF 47 50 53

― RNF = 82Ω, CNF = 33µF ― 40 ―

= 50mW, RNF = 0Ω, RL = 8Ω ― 0.8 ―

o

= 4Ω, Ta = 25°C

L

Test Condition Min. Typ. Max. Unit

mA

dB

mW

%

rms

dB

%

rms

3

2002-10-30

Characteristic Curves

TA7331P / F

(Note) Data above V

16

12

(mA)

CCQ

8

4

Quiescent current I

0

1

Supply voltage VCC (V)

60

50

(dB)

40

V

30

VCC = 3V

RL = 4Ω

20

Vo = 0.5V

10

Voltage gain G

RNF = 0

0

30

rms

300 1k 100 3k 10k 30k 100k

= 4V is only TA7331P.

CC

I

, V6, GV – VCC

CCQ

GV

V6

I

CCQ

3 2 4 5 6

G

– f

V

C

= 220pF

LPF

1000pF

2200pF

4

3

2

1

0

Frequency f (Hz)

THD – P

60

50

(V)

6

6 Pin DC voltage V

40

30

(dB)

VO

Voltage gain G

20

f = 1kHz

RNF = 0

10

C

= 1000pF

LPF

5

3

1

0.5

o

= 4Ω

L

4.5V, 8Ω

= 3V, R

CC

V

4.5V, 4Ω

Total harmonic distortion THD (% )

20

0.2
10 100 300 100030

Output power Po (mW)

THD – f

10

5

3

1

0.5

0.3

0.1

Total harmonic distortion THD (% )

100 300 1k 3k 10k 30k 100k

VCC = 3V, RL = 4Ω

C

= 1000pF

LPF

RNF = 0

Po = 50mW

4.5V, 8Ω

Frequency f (Hz)

P

– VCC

1000

f = 1KHz

THD = 10%

(mW)

o

300

100

Output power P

50

30

0

1 2 3 4 5 6

Supply voltage VCC (V)

o

RL = 4Ω

8Ω

600

(mW)

D

400

200

Power dissipation P

0

0

Supply voltage V

4

P

– VCC

D

RL = 4Ω

8Ω

2 4 6

(V)

CC

2002-10-30

TA7331P / F

– Ta

I

6

5

(mA)

CCQ

4

3

2

CCQ

VCC = 3V

3

1

0.5

0.3

Quiescent current I

1

− 10

0 10 20 30 40 50 60

Ambient temperature Ta (°C)

Total harmonic distortion THD (% )

0.1

− 10

0 10 20 30 40 50 60

Ambient temperature Ta (°C)

THD – Ta

VCC = 3V

RL = 4Ω

Po= 50mW

f = 1kHZ

THD – P

30

VCC = 3V

RL = 4Ω

RNF= 0

10

C

= 1000pF

LPF

5

3

1

0.5

Total harmonic distortion THD (% )

0.3

0.1
10

f = 100Hz

1kHz

10kHz

30

50 100

o

1.2

(W)

1.0

D

0.8

0.6

0.4

0.2

Allowabele power dissipation P

0

0

20 40 60 80 100 120 140 160

Ambient temperature Ta (°C)

500

300

P

D

TA7331F

– Ta

TA7331P

Output power Po (mW)

5

2002-10-30

µ

µ

µ

TA7331P

Application 1

Application 2

(BTL connection)

Input

1

F

※

100kΩ

10kΩ

(few external parts)

TA7331P / F

TA7331P

4321 8765 9

47kΩ

47kΩ

10µF

10µF

TA7331P

1000pF

10kΩ

22µF

1000pF

321 8765 9 4

1

100Ω

220µF

0.22µF

L

8Ω

R

0.22µF

2

1kΩ

1kΩ

220µF

100Ω

※ It is necessary to adjust to I

150Ω

33µF

220µF

CCQ

V

GND

.

CC

TA7331P

Input

4.7

F

100kΩ

100kΩ

4321 8765 9

470µF

F

1000pF

33µF

47kΩ

0.22

R

L

33µF

V

CC

220µF

6

2002-10-30

Application 3

µ

µ

µ

TA7331P / F

TA7331F

Application 1

Input

4.7

10µF

F

100kΩ

8.6kΩ

(BTL connection)

Input

F

1

※

100kΩ

10kΩ

TA7331P

432 1 8765 9

R

470µF

F

1000pF

10kΩ

47kΩ

33µF

0.22

L

33µF

V

CC

220µF

TA7331F

11615 7 98

47kΩ

1000pF

10kΩ

22µF

1000pF

615 14 98

10µF

10µF

47kΩ

1

1

3 11

5

0.22µF

L

R

0.22µF

5

3 11

100Ω

220µF

8Ω

1kΩ

1kΩ

220µF

100Ω

150Ω

33µF

220µF

V

CC

GND

TA7331F

2

※ It is necessary to adjust to I

CCQ

.

7

2002-10-30

TA7331P / F

µ

µ

µ

µ

Application 2

Application 3

(few external parts)

Input

Input

4.7

4.7

F

100kΩ

100kΩ

F

100kΩ

8.6kΩ

TA7331F

11615 14 9853 11

R

8Ω

R

8Ω

L

L

33µF

V

CC

220µF

33µF

V

CC

470µF

F

1000pF

1000pF

33µF

33µF

47kΩ

0.22

TA7331F

11615 14 9853 10

470µF

F

47kΩ

0.22

10µF

10kΩ

220µF

8

2002-10-30

Package Dimensions

Weight: 0.92g (typ.)

TA7331P / F

9

2002-10-30

Package Dimensions

Weight: 0.14g (typ.)

TA7331P / F

10

2002-10-30

TA7331P / F

A

RESTRICTIONS ON PRODUCT USE

· TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor
devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical
stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of
safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of
such TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as
set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and
conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability
Handbook” etc..

· The TOSHIBA products listed in this document are intended for usage in general electronics applications
(computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances,
etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires
extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or
bodily injury (“Unintended Usage”). Unintended Usage include atomic energy control instruments, airplane or
spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments,
medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this
document shall be made at the customer’s own risk.

· The products described in this document are subject to the foreign exchange and foreign trade laws.

· The information contained herein is presented only as a guide for the applications of our products. No

responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other
rights of the third parties which may result from its use. No license is granted by implication or otherwise under
any intellectual property or other rights of TOSHIBA CORPORATION or others.

000707EB

· The information contained herein is subject to change without notice.

11

2002-10-30

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