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參數(shù)資料
| 型號： | TDA7412 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | CARRADIO SIGNAL PROCESSOR |
| 中文描述： | CARRADIO信號處理器 |
| 文件頁數(shù)： | 31/56頁 |
| 文件大?。?/td> | 716K |
| 代理商： | TDA7412 |
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TDA7412
Figure 24. Signals during stereodecoder's SoftMute
Figure 25. Signal-Control via SoftMute-Pin
3.2 InGain + Infilter
The InGain stage allows to adjust the MPX-signal to a magnitude of about 1V
rms
internally which is the recom-
mended value. The 4.th order input filter has a corner frequency of 80kHz and is used to attenuate spikes and
noise and acts as an anti-aliasing filter for the following switch capacitor filters.
3.3 Demodulator
In the demodulator block the left and the right channel are separated from the MPX-signal. In this stage also the
19-kHz pilottone is cancelled. For reaching a high channel separation the A679 offers an I
2
C-bus programmable
roll-off adjustment which is able to compensate the lowpass behavior of the tuner section. If the tuner's attenu-
ation at 38kHz is in a range from 7.2% to 31.0% the A679 needs no external network in front of the MPX-pin.
Within this range an adjustment to obtain at least 40dB channel separation is possible. The bits for this adjust-
ment are located together with the fieldstrength adjustment in one byte. This gives the possibility to perform an
MP-HOLD
SOFTMUTE
PIN
D00AU1165
SOFTMUTE
PLL-HOLD
PLL-HOLD
INFLUENCE
STDHMUTE
MUTED
STDHMUTE
INFLUENCE
SOFTMUTE
INFLUENCE
IIC-BUS
SOFTMUTE
INFLUENCE
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA7415CB | Car radio multimedia signal processor |
| TDA7416 | CARRADIO SIGNAL PROCESSOR |
| TDA7417 | Car radio audio processor |
| TDA7417TR | Car radio audio processor |
| TDA7419 | 3 BAND CAR AUDIO PROCESSOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7415 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| TDA7415CB | 功能描述:音頻放大器 Car-radio Multimedia Signal (CMSP) 6-chnl RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA7415CBTR | 功能描述:音頻放大器 Car-radio Multimedia Signal (CMSP) 6-chnl RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TDA7416 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:CARRADIO SIGNAL PROCESSOR |
| TDA7416_11 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Car radio signal processor |
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