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參數(shù)資料
| 型號： | TDA7406 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Car radio signal processor |
| 中文描述： | 車載無線電信號處理器 |
| 文件頁數(shù)： | 36/64頁 |
| 文件大?。?/td> | 825K |
| 代理商： | TDA7406 |
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Functional Description of Stereodecoder
TDA7406
36/64
Figure 24.
Signals during stereodecoder's SoftMute
Figure 25.
Signal-Control via SoftMute-Pin
8.2
InGain + InFilter
The InGain stage allows to adjust the MPX-signal to an internal magnitude of about 1V
rms
which is the recommended 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.
8.3
Demodulator
In the demodulator block the left and the right channel are separated from the MPX-signal.
In this stage also the 19-kHz pilot tone is cancelled. For reaching a high channel separation
the TDA7406 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 attenuation at 38kHz is
in a range from 7.2% to 31.0% the TDA7406 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 adjustment are located together with the fieldstrength adjustment in one
byte. This gives the possibility to perform an optimization step during the production of the
car radio where the channel separation and the fieldstrength control are trimmed. The setup
of the Stereoblend characteristics which is programmable in a wide range is described in
Section 8.8
.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA7407 | ADVANCED CAR SIGNAL PROCESSOR |
| TDA7409 | CARRADIO-SIGNAL-PROCESSOR |
| TDA7409D | CARRADIO-SIGNAL-PROCESSOR |
| TDA7410ND | Signal processor for car radio applications |
| TDA7410NDTR | Signal processor for car radio applications |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7406T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:CAR RADIO SIGNAL PROCESSOR |
| TDA7406TR | 功能描述:音頻 DSP INFOTAINMENT SIGNAL RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| TDA7407 | 功能描述:音頻 DSP Advanced car signal processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| TDA7407_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Advanced car signal processor |
| TDA7407D | 功能描述:音頻 DSP INFOTAINMENT SIGNAL RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
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