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參數(shù)資料
| 型號(hào)： | STV8236 |
| 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(yè)數(shù)： | 55/97頁(yè) |
| 文件大小： | 1871K |
| 代理商： | STV8236 |
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STV82x6
Register List
CAROFFSET2
Channel 2 DCO Carrier Offset Compensation
9.8
NICAM Registers
NICAM_CTRL
NICAM Decoder Control Register
Address (hex): 3Ah
Type: R/W
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
CAROFFSET2[7:0] (S)
Bit Name
Reset
Function
CAROFFSET2
[7:0]
00000000
This value is used to correct the carrier frequency offset of the incoming IF signal. Automatic
frequency control in FM mode can be implemented by registers
FM_DCR
and
FM_DCL
.
A DCO frequency offset (in two’s complement format) is added to the pre-programming value
by AUTOTSD in the CARFQ2 registers (corresponding to the standard IF carrier frequency).
The programmable carrier offset ranges from -192 kHz to +190.5 kHz with a resolution of
1.5 kHz.
For standard FM deviation, the value displayed by register
FM_DCR
can be directly loaded in in
register
CAROFFSET2
to exactly compensate the carrier offset on Channel 2.
Address (hex): 3Dh
Type: R/W
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
0
0
0
DIF_POL
ECT
MAE
Bit Name
Reset
Function
Bits[7:3]
00000
Reserved.
DIF_POL
0
0: No polarity inversion (Default)
1: Polarity inversion of the differential decoding
ECT
0
Error Counter Timer
: Defines the NICAM error measurement period
0: 128 ms (Default)
1: 64 ms
MAE
0
Max. Allowed Errors
. Defines the NICAM error decoding for mute function.
0: 511 Max (Default)
1: 255 Max
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| STV8237T | 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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| STV8247_06 | 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 |
| 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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