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參數(shù)資料
| 型號： | STV8206 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Multistandard TV Audio Processor and Digital Sound Demodulator |
| 中文描述： | 多標(biāo)準(zhǔn)電視音頻處理器和數(shù)字聲音解調(diào)器 |
| 文件頁數(shù)： | 63/97頁 |
| 文件大?。?/td> | 1871K |
| 代理商： | STV8206 |
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STV82x6
Register List
2 A mute of the corresponding audio output is recommended before changing the language. Any
audio discontinuity might create annoying audible plop.
PEAK_DET_CTRL
Peak Level Detector Control Register
PEAK_DET_STATL
Peak Level Detector Status Register
Address (hex): 4Bh
Type: R
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
0
PD_SEL[1:0]
Bit Name
Reset
Function
Bits[7:2]
000000
Reserved.
PD_SEL[1:0]
00
Peak Level Detector Source Selection
00: FM
01: NICAM
10: SCART
11: I2S
Address (hex): 4Ch
Type: R
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
PEAK_LEVEL_LEFT[7:0]
Bit Name
Reset
Function
PEAK_LEVEL_
LEFT[7:0]
00000000
Displays the
Absolute Peak Level
of the audio source selected. The measured value is
updated continuously every 64 ms. The range varies linearly from the full scale (0 dB) down to 1/
256 of the full scale (-48 dB).
In AM/FM Mono mode, only the PEAK_LEVEL_LEFT[7:0] value must be taken into account.
In FM Mono mode, the audio peak level range depends upon the programmed FM bandwidth.
The unique difference is that the measurement is done after Sound pre-processing (DC offset
removal, Prescaling, De-emphasis and Dematrixing).
In FM Stereo mode, the maximum value may be used to check if the incoming signal level is
correctly adjusted by the prescaling factor or if there are no FM overmodulation problems
(clipping).
Programmable values are listed in
Table 19
.
The difference between the PEAK_LEVEL_LEFT[7:0] and PEAK_LEVEL_RIGHT[7:0] values
may be calculated by the microcontroller to identify Mono or Stereo mode from an unknown
source (SCART or I2S).
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| STV8207 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders |
| STV8207T | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders |
| STV8211 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:VIDEO & SOUND IF SYSTEM |
| STV8216 | 功能描述:視頻 IC Audio Proc/Dig Demod RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| STV8217 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders |
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