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參數(shù)資料
| 型號： | STV8236 |
| 廠商： | 意法半導體 |
| 英文描述： | Multistandard TV Audio Processor and Digital Sound Demodulator |
| 中文描述： | 多標準電視音頻處理器和數(shù)字聲音解調(diào)器 |
| 文件頁數(shù)： | 45/97頁 |
| 文件大?。?/td> | 1871K |
| 代理商： | STV8236 |
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STV82x6
Register List
AGCS
AGC Control and Status for IF ADC
Note:
When
AGC_CMD = 0
,
AGC_ERR[4:0]
can be read -- indicating the input level. It can also be written
to -- presetting the AGC level which will then adjust itself to the final value.
When
AGC_CMD = 1
, the AGC is off and writing to
AGC_ERR[4:0]
directly controls the AGC
amplifier gain. Reading AGC_ERR just confirms the fixed value.
DCS
DC Offset Status for IF ADC
Address (hex): 0Fh
Type: R
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
AGC_ERR[4:0]
SIG_OVER
SIG_UNDER
Bit Name
Reset
Function
Bit 7
0
Reserved.
AGC_ERR[4:0]
00000
Amplifier Gain Control
This is the Gain Control value of ADC. There are 31 steps of +1.25 dB (see Note below).
00000: 0 dB Gain
11110: +37.5 dB Gain
SIG_OVER
0
AGC Input SIgnal Upper Threshold
0: Normal signal
1: Signal too large and AGC is overloaded
SIG_UNDER
0
AGC Input SIgnal Lower Threshold
0: Normal signal
1: Signal too small and AGC is underloaded
When the AGC is in Automatic mode (AGC_CMD = 0), bits SIG_OVER and SIG_UNDER indicate
if the input signal is too small/large and the AGC is under/overloaded. This is useful when setting
the STV82x6 SIF input level.
Address (hex): 10h
Type: R
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
DC_ERR[7:0]
Bit Name
Reset
Function
DC_ERR[7:0]
00000000
DC offset error of IF ADC output
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|---|---|
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| STV8247D | 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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