MM1336 查看數據表（PDF） - Mitsumi

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MM1336

IC for Headphone Stereos (with volume-limiting circuit)

Mitsumi 

MITSUMI

IC for Headphone Stereos (with volume-limiting circuit) MM1336

IC for Headphone Stereos (with volume-limiting circuit)

Monolithic IC MM1336

Outline

This IC was developed for use in 3V headphone stereos. In addition to the basic functions required by

headphone stereos, it incorporates a circuit for limiting volume. In some parts of Europe hearing impairment

caused by the high volumes of headphone stereos has become a problem, and there has been strong

demand for functions for limiting loud volumes in the sets themselves. This trend is expected to gain

momentum in the U.S. as well.

This IC uses an internal ALC circuit to suppress headphone stereo output, avoiding the above problem.

Features

1. Configuration: Pre-and power amps, ALC circuit, motor control

2. Internal tape selector: A selector switch allows the user to select between normal and metal tapes.

3. Internal OCL circuit: There is no need for a capacitor for high-volume output, so sets can be kept thin.

4. With preamp off pin while connected to radio

5. Designed for low shock noise

Reduced noise occuring when the power supply is turned on and off

Package

SOP-28B (MM1336CF, MM1336DF)

Pin Assignment

28 27 26 25 24 23 22 21 20 19 18 17 16 15

1 2 3 4 5 6 7 8 9 10 11 12 13 14

SOP-28B

Absolute Maximum Ratings

1

COM1

15

VS

2

PIN1

16

C

3

PNF1

17

VCC2

4

PBU1

18

OUT2

5

POUT1

19

VCC1

6

IN1

20

RF

7

RECT

21

Pre OFF

8

AVNF

22

N/M

9

OUT1

23

IN2

10

COM2

24

POUT2

11

GND1

25

PBU2

12

GND2

26

PNF2

13

PCOUT

27

PIN2

14

PHASE

28

GND3

Item

Operating temperature

Storage temperature

Power supply current

Power consumption

Symbol

TOPR

TSTG

VCC

Pd

Ratings

-20~+65

-40~+125

-0.3~+7.5

700

Units

°C

°C

V

mW

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