- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373622 > TDA7404 (意法半導(dǎo)體) CARRADIO-SIGNAL-PROCESSOR PDF資料下載
參數(shù)資料
| 型號： | TDA7404 |
| 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)： | 9/26頁 |
| 文件大小： | 379K |
| 代理商： | TDA7404 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁當(dāng)前第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁
9/26
TDA7404D
before the Mixing-block to eliminate all offsets generated by the Input-Stages and the In-Gain (Please notice
that externally generated offsets, e.g. generated through the leakage current of the coupling capacitors, are not
canceled).
The auto-zeroing is started every time the DATA-BYTE 0 (Input Selector/Gain) is selected and takes a time of
max.
0.3ms
. To avoid audible clicks the Audioprocessor is muted before the loudness stage during this time.
1.2.1 AutoZero-Remain
In some cases, for example if the uP is executing a refresh cycle of the IIC-Bus-programming, it is not useful
to start a new AutoZero-action because no new source is selected and an undesired mute would appear at the
outputs. For such applications the TDA7404D could be switched in the
AutoZero-Remain-Mode
(I2 bit of the
subaddress-byte). If this bit is set to high, the DATABYTE 0 could be loaded without invoking the AutoZero and
the old adjustment-value remains.
1.3 Mixing Stage
The 4 step Mixing stage offers the possibility to mix the rear selector signal or the phone signal to any other
source. Due to the fact that the mixing-stage is located behind the In-Gain-stage fine adjustments of the main
source level could be done in this way.
Figure 2. Signal-Flow of Mixing-Stage
1.4 Loudness
There are four parameters programmable in the loudness stage:
1.4.1 Attenuation
Figure 3 shows the attenuation as a function of frequency at f
C
= 400Hz.
Diffin
Loudness
SE1
SE2
SE3
Mono
2
Beep
Input Selector
In-Gain
Mixing
Mixing Level
Input / Beep or Mono
0dB / -100dB
-3.5dB / - 9.6dB
- 6dB / - 6dB
- 12dB / - 2.5dB
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA7404D | CARRADIO-SIGNAL-PROCESSOR |
| TDA7405 | EQUALIZER CARRADIO SIGNAL PROCESSOR |
| TDA7406T | CAR RADIO SIGNAL PROCESSOR |
| TDA7406 | Car radio signal processor |
| TDA7407 | ADVANCED CAR SIGNAL PROCESSOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7404_08 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Car radio signal processor |
| TDA7404D | 功能描述:音頻 DSP Car Radio 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 |
| TDA7404DTR | 功能描述:音頻 DSP Car Radio 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 |
| TDA7405 | 功能描述:音頻 DSP EQUALIZER CAR RADIO 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 |
| TDA7405_04 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:EQUALIZER CARRADIO SIGNAL PROCESSOR |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。