Panasonic AN5270 Datasheet

ICs for Audio Common Use

AN5270

4.3 W × 1(8Ω) Power Amplifier with Volume Control and Tone Control

■ Overview

The AN5720 is an integrated circuit designed for 4.3 W(8
Ω) power amplifier with volume control and tone control.

■ Features

• DC volume control : 0 to 5 V

• DC tone control : 0 to 5 V

• 9-lead single-in-line plastic package with fin

■ Block Diagram

Pre

amp.

Volume

control

Tone

control

19.9±0.1

18.3±0.25

φ2.65±0.1

φ3.3±0.1

0.1±0.05

8.4±0.25

5.8±0.25

1.5±0.25

5.6±0.25

6.3 7.1
±0.3 ±0.25

9
8
7
6
5
4

15.0

3
2
1

HSIP009-P-0000

Unit : mm

3.75±0.25

±0.1

0.5

1.2

2.54

+0.1

–0.05

1.7±0.25

0.45

±0.25

1.7

±0.25

22.3±0.3

1

V

CC1

2

In

3

LF

4

Vol-ctl.

5

Tone-ctl.

6

RF

■ Pin Descriptions

Pin No. Pin Name

1V
2 Sound input
3 Low frequency input
4 Volume control
5 Tone control
6 Ripple filter
7 Ground
8 Sound output
9V

Note) Pins 2 and 4 are weaker in protection against positive surge than the other pins.

It is necessary to pay attention during application use.

CC1

CC2

7

GND

8

Out

9

CC2

V

1

AN5270 ICs for Audio Common Use

■ Absolute Maximum Ratings

Parameter Symbol Ratings Unit

Supply voltage V

V

Circuit voltage V

Supply current I

3, 4

Circuit current
Power dissipation
Operating ambient temperature
Storage temperature

Note) Do not apply a current or voltage from the external to the terminals that are not described above.

*1:Ta = 25 °C, excluding parameters regarding ambient temperature and storage temperature.
*2:Ta = 70 °C, the IC is mounted on PCB, without external heat sink.
*3: For circuit currents, '+' denotes current flowing into the IC, and '−' denotes current flowing out of the IC.
*4: As the output Pin8 does not have over current protection circuit incorporated,

*

2

*

1

*

1

*

therefore please take precaution not to short the output pin to either VCC or GND.

)14 V

CC1(V1-7

)26

CC2(V9-7

2-7

V

3-7

V

4-7

V

5-7

CC1

I

CC2

I

8

P

D

T

opr

T

stg

0 to V

9-7

0 to V

9-7

0 to V

1-7

0 to V

1-7

15 mA

2A

−1.7 to +1.7 A

PP

1.6 W

−20 to +70 °C

−55 to +150 °C

■ Recommended Operating Range

Parameter Symbol Range Unit

Operating supply voltage range V

CC1

V

CC2

11 to 13 V
15 to 24

2

ICs for Audio Common Use AN5270

■ Electrical Caracteristics at V

= 12 V, V

CC1

= 18 V, f = 1 kHz, Ta = 25 °C, RL = 8 Ω, Vol. = max.,

CC2

Tone = max.

Parameter Symbol Conditions Min Typ Max Unit

Quiescent current 1 I

Quiescent current 2 I

TOT1

TOT2

Output DC bias V

Voltage gain G
Total harmonic distortion THD VO = 1 V
Max. output power Pomax THD = 10 %, PO = V
Max. output attenuation Attmax V

Tone variable range ∆G

No input signal 7 10 13 mA
Measure V

CC1

current

No input signal 20 28 48 mA
Measure V

No input signal 7.2 8.3 9.4 V

ODC

CC2

current

Measure Pin8 DC

V

VO = 1 V

= 1.0 V

O

, GV = 20 log(VO / VIN) 283032dB

rms

, BPF : 400 Hz to 30 kHz  0.5 1.0 %

rms

, Vol. = max. → min. −69 −66 dB

rms

Attmax = 20 log [V
f = 10 kHz, fix VIN where 18 20  dB

TC

V

O(tone = max.)

= 1 V
Tone = max. → min.
∆GTC = 20 log [V

2

/ R

O

O(vol. = max.)

rms

O(tone = max.)

L

/ V

/ V

O(tone = min.)

O(vol. = min.)

4.0 4.3  W

]

]

■ Application Circuit Example

AN5270

6

1In2LF3

5.1kΩ

CC1

100Ω

33µF

Ext

External
audio in

SIF-IC

Det.
out

33µF

Note) Design considerations for shock noise prevention. :

In the application of the IC, please adopt the above power supply configuration whenever possible.
Where this is not possible, then it is better to ensure that V
power-on shock noise. Similarly, please ensure that V

100kΩ

1kΩ

TV

AV

SW

33µF

9kΩ

33µF

24kΩ

V

3.3µF

30kΩ

4

5

Vol-ctl.

0.039
µF

22µF

CC2

Tone-ctl.

33kΩ

should start up first before the onset of V

CC1

declines faster than V

7

RF

GND

47µF

5V

10kΩ
VR

10kΩ
VR

, in order to prevent power-off shock noise.

CC1

Out 8

470
µF

8Ω

AN78M05

100µF

9

GND

12V

47µF

CC2

V

2200µF

, in order to prevent

CC2

AN78M12

18V
Power
supply

3