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參數(shù)資料
| 型號： | TDA7418TR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
| 封裝： | LEAD FREE, SOP-20 |
| 文件頁數(shù)： | 4/29頁 |
| 文件大?。?/td> | 387K |
| 代理商： | TDA7418TR |
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Description of the audioprocessor
TDA7418
4
Description of the audioprocessor
4.1
Input stages
In the basic configuration, one stereo pseudo differential (programmable as single-ended
input) and three single-ended stereo inputs are available.
Pseudo differential stereo input (PD/SE4)
The PD input is implemented as a buffered pseudo differential stereo stage with 100k
Ω
input-impedance at each input. The attenuation is fixed to -3dB in order to adapt the
incoming signal level. It is also configurable as single-ended input.
Single-ended stereo input (SE1, SE2, SE3)
The input-impedance at each input is 100k
Ω and the attenuation is fixed to -3dB for
incoming signals.
Figure 3.
Input stage
4.2
AutoZero
The AutoZero allows a reduction of the number of pins as well as external components by
canceling any offset generated by or before the In-Gain-stage (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 input source is changed and needs max. 0.6ms
for the alignment. To avoid audible clicks the Audio processor is muted before the loudness
stage during this time.
AutoZero-remain
In some cases, for example if the P 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
QD/SE4
QD_L/SE4_L
QD_R/SE4_R
QD_G
SE3
SE2
SE2_L
SE2_R
QD/SE4
SE1
SE2
SE3
Input
Selector
In Gain
SE1
SE1_L
SE1_R
SE3_L
SE3_R
相關(guān)PDF資料 |
PDF描述 |
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| TDA7418 | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
| TDA7419TR | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28 |
| TDA7419 | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28 |
| TDA7420 | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| TDA7421N | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA7419 | 功能描述:音頻放大器 4 Band Car Audio Processor 8-10V 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 |
| TDA7419TR | 功能描述:音頻放大器 5 Band Car Audio Processor 8-10V 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 |
| TDA7420 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:MULTIFUNCTIONAUDIO PROCESSOR |
| TDA7421 | 制造商:STMICROELECTRONICS 制造商全稱: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 |
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