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參數資料
| 型號： | 6764 |
| 廠商： | 意法半導體 |
| 英文描述： | AUDIO SIGNAL PROCESSOR |
| 中文描述： | 音頻信號處理器 |
| 文件頁數： | 1/27頁 |
| 文件大小： | 205K |
| 代理商： | 6764 |
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TDA7340G
AUDIO SIGNAL PROCESSOR
AUDIOPROCESSOR:
MUTE, SOFT MUTE AND ZERO CROSSING
MUTE
ONE DIFFERENTIAL, TWO STEREO AND
TWO MONO INPUTS
DIFFERENTIAL PHONE INPUT
VOLUME, BASS, TREBLE AND LOUDNESS
CONTROL
FOUR SPEAKER ATTENUATORS WITH IN-
DEPENDENT ATTENUATION CONTROL
STEREODECODER:
ROLL-OFFADJUSTMENT
ADJUSTMENT FREE INTEGRATED 456KHz
VCO
HIGH CUT CONTROL
STEREOBLEND
NOISE BLANKER:
INTEGRATED HIGH-PASSFILTER
NOISE RECTIFIER OUTPUT FOR QUALITY
DETECTION
PROGRAMMABLE TRIGGERTHRESHOLD
DEVIATION AND FIELD STRENGTH DE-
PENDENT TRIGGERADJUSTMENT
PAUSE DETECTOR:
PROGRAMMABLE THRESHOLD
ALLFUNCTIONSPROGRAMMABLEVIA I
2
CBUS
DESCRIPTION
The TDA7340G I
2
C bus controlled audio signal
processor contains all signal processing blocks of
a high performance car radio, including audio-
processor, stereodecoder, noise blanker, pause
detectorand differentmute functions.
The use of BICMOS technology allows the imple-
mentation of several filter functions with switched
capacitor techniques like fully integrated, adjust-
ment free PLL Loop filter, pilot detector with inte-
grator and pilot cancellation.
This minimizes the number of external compo-
nents.
Due to a highly linear signal processing, using
CMOS-switching techniques instead of standard
bipolar multipliers, very low distortion and very
low noise are obtained also in the stereodecoder
part. The audioprocessor contains several new
features like softmute, zero-crossing mute and
pausedetector.
Very low DC stepping is obtained by use of a
BICMOS technology.
September 1999
ORDERING NUMBER:
TDA7340G
PQFP44
1/27
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