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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： | 6/29页 |
| 文件大小： | 387K |
| 代理商： | TDA7418TR |
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Description of the audioprocessor
TDA7418
4.3.3
Low and high frequency boost
Figure 6 shows the different Loudness shapes in low & high frequency boost.
Figure 6.
Loudness attenuation, fc = 2.4kHz
4.3.4
Flat mode
In flat mode the loudness stage works as a 0dB to -15dB attenuator.
4.4
SoftMute
The digitally controlled SoftMute stage allows muting/demuting the signal with a I2C-bus
programmable slope. The mute process can either be activated by the SoftMute pin or by
the I2C-bus. This slope is realized in a special S-shaped curve to mute slow in the critical
regions (see Figure 7).
For timing purposes the Bit0 of the I2C-bus output register is set to 1 from the start of muting
until the end of demuting.
Figure 7.
Softmute timing
1.
Please notice that a started Mute-action is always terminated and could not be interrupted by a change of
the mute-signal
1
EXT.
MUTE
+SIGNAL
REF
-SIGNAL
1
I
2C BUS
OUT
Time
D97AU634
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| TDA7420 | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
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相关代理商/技术参数 |
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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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