Sanyo LA4160 Specifications

Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.

Monolithic Linear IC

Single-Chip Tape Recorder Audio System

Ordering number:ENN870D

LA4160

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

Features

• A single package contaning preamplifier, ALC circuit,
power amplifier.

• Preamplifier with high gain, and power amplifier with
high gain and output.
1W typ. (VCC=6V, RL=4Ω)

2.2W typ. (VCC=9V, RL=4Ω)

• Minimum number of external parts required.

• Soft tone quality at the time of output saturation.

• Wide range of ALC and small variation in output volt­age.

• Wide range of operating supply voltage.

• Small shock noise at the time of supply voltage ON/OFF
(With built-in prevention circuit).

• Variable monitor capability due to recording amplifier
consisting of preamplifier alone.

Specifications

Absolute Maximum Ratings at Ta = 25˚C

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xam 31V

CC

05 × 05 × mm5.1

Package Dimensions

unit:mm

3005A-DIP14T

[LA4160]

2.5

2.1

14

1

6.0

1.53

1.88 2.54

3

detaoc-uC52.2W

19.06.5

0.5

8

7.62

7

3.46

0.51min

1.3

SANYO : DIP14T

6.45

0.4

4.26max

3.5

2.1W

˚C
˚C

Recommended Operating Conditions at Ta = 25˚C

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CC

L

12800TH (KT)/41594HK/O207TA/4015KI/8171KI, TS No.870–1/11

9ot6V

Ω

8ot2.3

LA4160

Operating Characteristics at Ta = 25˚C, VCC=6V, f=1kHz, See specified Test Circuit

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Test Circuit Diagram

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OCC

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f

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Test Method

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Power amplifier

ON

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preamplifier

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OCC

level

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No.870–2/11

Equivalent Circuit Block Diagram

LA4160

Sample Application Circuit 1 : Cassette Recorder

No.870–3/11

LA4160

Sample Application Circuit 2 : Radio-Cassette Recorder

Description of Application Circuit

1. Preamplifier
The preamplifier circuit consists of the input differential stage (TR9, 10), level shift stage (TR13), and output
stage (TR17, 18, 19). Since the output stage is of push-pull type, no remarkable drop in the output voltage
occurs even at low load impedances and the output can be connected direct to the ALC circuit and meter circuit.
The external DC/AC feedback resistor (Z2) can be set arbitrarily and the closed loop gain is obtained by the
following equation.

VG (pre) 20 log ( ) (dB)

The input impedance depends on internal resistance R2 which is 30kΩ.

Z2
Z1

No.870–4/11