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| 型号： | TDA7420 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封装： | 14 X 14 MM, TQFP-64 |
| 文件页数： | 1/29页 |
| 文件大小： | 230K |
| 代理商： | TDA7420 |
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TDA7420
MULTIFUNCTION AUDIO PROCESSOR
CASSETTE PREAMPLIFIER:
FORWARD/REVERSE
INPUTS
GROUND
COMPATIBLE
INTERNAL SWITCHES FOR EQUALIZATION
INTERNAL ADJUSTMENT FOR TRAKING
INTERNAL ADJUSTMENT FOR OUTPUT
AMS:
INPUT GAIN CONTROL
ADJUSTABLE GAIN VERSUS FREQUENCY
AUDIOPROCESSOR:
INPUTS: 1 FULLY DIFFERENTIAL, 1 DIFFER-
ENTIAL, 1 STEREO AND 1 MONO
INPUT GAIN FROM 0 TO 15dB (1dB STEP)
VOLUME CONTROL FROM +16 TO -63dB
(1dB STEP)
BASS AND TREBLE CONTROL FROM -18
TO 18dB (1dB STEP)
DIRECT MUTE, SOFT MUTE AND RADIO
MUTE
FOUR INDEPENDENT OUTPUT STAGES:
- ATTENUATION CONTROL FROM
0 TO -79dB (1dB STEP)
- BEEP CONTROL (ON/OFF, FRONT/REAR)
STEREO DECODER:
ROLL-OFF ADJUSTMENT
SELECTABLE DEEMPHASIS
19KHz CANCELLATION
HIGH CUT CONTROL
STEREO BLEND
NOISE BLANKER
AUTOMATIC THRESHOLD CONTROL AND
PROGRAMMABLE TRIGGER THRESHOLD
INTEGRATED HIGH PASS FILTER
PACKAGE: TQFP64 (14x14)
DESCRIPTION
The TDA7420 I
2C bus controlled multifunction
audio processor contains all signal processing
blocks of a high performance car radio, including
audioprocessor, stereodecoder, noise blanker,
different mute functions, cassette preamplifier and
AMS function.
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.
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.
Very low DC stepping is obtained by use of the
BICMOS technology.
May 1998
ORDERING NUMBER: TDA7420
TQFP 64 (14x14)
1/29
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相关代理商/技术参数 |
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|---|---|
| TDA7421 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:AM/FM TUNER FOR CAR RADIO AND Hi-Fi APPLICATIONS |
| TDA7421N | 制造商:ST 功能描述:AM/FM TUNER FOR CAR RADIO AND HI-FI APPLICATIONS |
| TDA7427 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER |
| TDA7427A | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER |
| TDA7427AAD | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER |
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