Datasheet > TDA7336

TDA7336

更新时间： 2024-11-24 22:53:11

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
20页	396K
描述
STEREO PREAMP+ AMS+ DOLBY B* NOISE REDUCTION PROCESSOR

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TDA7336 数据手册

TDA7336

STEREO PREAMP + AMS + DOLBY B*

NOISE REDUCTION PROCESSOR

DUAL CHANNEL PROCESSOR FOR PLAY-

BACK APPLICATIONS.

STEREO DOLBY B NR SYSTEM

LOW NOISE HEAD PREAMPLIFIER

MUTE, AMS (AUDIO MUSIC SENSOR)

FUNCTIONS

INTERNAL SWITCHES FOR EQUALIZATION

DOLBY

REFERENCE

LEVEL

-6dBm

(388.2mV^RMS)

MINIMUM NUMBER OF EXTERNAL COMPO-

NENTS

LOW SUPPLY CURRENT (18mA)

MIXED BIPOLAR/CMOSTECHNOLOGY

SO28

ORDERING NUMBER: TDA7336

DESCRIPTION

The TDA7336 is a monolithic BICmos IC de-

signed for use in stereo cassette player systems.

PIN CONNECTION

(Top view)

The device includes two separate audio channels

composed by low noise preamplifier, Dolby B

noise reduction system and Audio Music Sensor.

The dual preamplifier contains mute, metal/nor-

mal facilities for amplification of low level signal in

applications requiring very low noise perform-

ances.

GND

INL

EQ.SW

INR

Each channel consists of two cascaded opera-

tional amplifiers.

The first one, AMP1, has a fixed gain of 36dB,

and allows magnetic heads connection directly to

ground. The second one, AMP2, is a standardop-

erational amplifier whose equalizing external

components fix the frequency response.

The Audio Music Sensor circuit detects the inter-

program space and then the starting point of mu-

sical programs (the interprogram time and pro-

gram detectiontime are externallyselectable).

EQLI

EQRI

EQLO

OUTL

DINL

EQRO

OUTR

DINR

AMS SW

INTP

GND DIG

AMSOUT

AMSGin

NR SW

TCR

INTS

MUTE

TCL

The device contains Dolby B decoder NR chains

requiring very few external components and do

not require coils.

DOUTL

IREF

DOUTR

VREF

* Dolby B and the Double-D symbol are

trademarks of Dolby Laboratories Li-

censing Corporation, San Francisco,

California 94103-4813, USA.

N.C.

D94AU052

This device is available only to Licens-

ing and application information may be

obtained from Dolby Lab.

November 1999

1/20

12 3 4 5 6 7...20

中文翻译

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