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| 型號(hào)： | TDA7404DTR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻控制 |
| 英文描述： | 1 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28 |
| 封裝： | SOP-28 |
| 文件頁(yè)數(shù)： | 27/28頁(yè) |
| 文件大小： | 521K |
| 代理商： | TDA7404DTR |
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TDA7404D
8/26
1.0 DESCRIPTION OF FUNCTIONALITY
1.1 Input stages
Most of the input stages have remained the same as in preceding ST-Audioprocessors with exception of the
CD-inputs (see Figure 1). In the meantime there are some CD-players in the market which have a significant
high source-impedance which effects strongly the common-mode-rejection of the normal differential input stage.
The additional buffer of the TDA7404D Diff
-input avoids this drawback and offers the full common-mode-rejection even with those CD-players.
Figure 1. Input-stages
Note. It is possible that the Differential input is switched a single ended input (SE4) like SE1.. 3.
1.2 AutoZero
In order to reduce the number of pins there is no AC coupling between the In-Gain and the following stage, so
that any offset generated by or before the In-Gain-stage would be transferred or even amplified to the output.
To avoid that effect a special Offset-cancellation-stage called AutoZero is implemented. This stage is located
Diffin+
/(SE4)
Ingain
28k
Diffgnd
Mono+
Mono -
SE1
SE2
SE3
10
0k
10
0k
10
0k
10
0k
10
0k
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| TDA7404D | 1 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| TDA7405TR | 功能描述:處理器 - 專門應(yīng)用 EQUALIZER CAR RADIO SIGNAL PROCESSOR RoHS:否 制造商:Freescale Semiconductor 類型:Multimedia Applications 核心:ARM Cortex A9 處理器系列:i.MX6 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:1 GHz 指令/數(shù)據(jù)緩存: 數(shù)據(jù) RAM 大小:128 KB 數(shù)據(jù) ROM 大小: 工作電源電壓: 最大工作溫度:+ 95 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MAPBGA-432 |
| TDA7406 | 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 |
| TDA7406T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:CAR RADIO SIGNAL PROCESSOR |
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