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参数资料
| 型号： | TDA7418TR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
| 封装： | LEAD FREE, SOP-20 |
| 文件页数： | 4/29页 |
| 文件大小： | 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
相关PDF资料 |
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 |
相关代理商/技术参数 |
参数描述 |
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| TDA7419 | 功能描述:音频放大器 4 Band Car Audio Processor 8-10V RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TDA7419TR | 功能描述:音频放大器 5 Band Car Audio Processor 8-10V RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| TDA7420 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:MULTIFUNCTIONAUDIO PROCESSOR |
| TDA7421 | 制造商:STMICROELECTRONICS 制造商全称: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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