參數(shù)資料
型號(hào)： TDA7461ND
廠(chǎng)商： STMICROELECTRONICS
元件分類(lèi)： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PDSO28
封裝： SOP-28
文件頁(yè)數(shù)： 8/48頁(yè)
文件大?。?/td> 437K
代理商： TDA7461ND
Description of the audio processor part
TDA7461
If bit D3 byte 10 (Stdec Register) is set to 0, then the stdec signal will be always available at
the Mux out pins, no matter which is the selected source.
The selection of the stereodecoder input, via a special procedure, is recommended.
1.
Soft Mute or Mute the signal path
2.
Temporary deselect the stereodec
3.
Wait 100-200 ms to allow the stdec internal filters to settle
4.
Select sterodec input (with automatic autozero)
This procedure guarantees an optimum offsetcancellation, avoiding big DC offsets due to
the autozero circuitry, which otherwise could try to compensate the signal sourced at the
MPX input instead of the stereodecoder intrinsic offset.
3.3
Mixing stage
This stage offers the possibility to mix the internal beep or the phone signal to any other
source.
Due to the fact that the mixing stage is also located behind the In-Gain stage fine
adjustments of the main source level can be done in this way.
3.3.1
Loudness
There are four parameters programmable in the loudness stage (see Figure 5, 6 and 7):
●
Attenuation
●
Center frequency
●
Loudness Q
●
Flat Mode: in this mode the loudness stage works as a 0 - 15dB attenuator.
Figure 5.
Loudness attenuation @ fc = 400 Hz
(second order)
Figure 6.
Loudness center frequency @
Atten. = 15 dB (second order)
相關(guān)PDF資料
PDF描述
TDA7461NDTR SPECIALTY CONSUMER CIRCUIT, PDSO28
TDA7461N SPECIALTY CONSUMER CIRCUIT, PDIP28
TDA7462D SPECIALTY CONSUMER CIRCUIT, PDSO28
TDA7463AD 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO20
TDA7463A 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO20
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TDA7461NDTR 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
TDA7462 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:DUAL AUDIOPROCESSOR WITH COMPANDER AND SUBWOOFER OUTPUT
TDA7462D 功能描述:音頻 DSP Dual Audioprocessor 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
TDA7462D013TR 功能描述:音頻 DSP DUAL AUDIOPROCESSOR COMPANDER /SUBWOOFER 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
TDA7463A 功能描述:多媒體雜項(xiàng) Lo Vltg TONE CONTROL RoHS:否 制造商:Texas Instruments 類(lèi)型: 通道數(shù)量: 轉(zhuǎn)換速率:540 Mbps 分辨率: 封裝 / 箱體:SOIC-16 封裝:Tube
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