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STV82X6 数据表(PDF) 56 Page - STMicroelectronics

部件名 STV82X6
功能描述  Multistandard TV Audio Processor and Digital Sound Demodulator
PDF  95 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STV82X6 数据表(HTML) 56 Page - STMicroelectronics

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Register List
STV82x6
56/95
FM_DCR
FM DC Offset Right Register
PRE_FM
FM Prescaling Register
Bit Name
Reset
Function
FM_DCL[7:0]
00000000
Displays (in two’s complement format) the FM (or AM) DC offset level after demodulation on
channel 1 (and removed automatically).
In FM mode, the DC offset value gives a direct value of the carrier frequency offset which is
used to compensate the DCO with the CAROFFSET1 value in the event of an out-of-standard
offset. The range and the resolution depend upon the FM bandwidth programmed defined in
register BCOEFF1. See Table 19.
Address (hex): 43h
Type: R
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
FM_DCR[7:0]
Bit Name
Reset
Function
FM_DCR[7:0]
00000000
Displays (in two’s complement format) the FM (or AM) DC offset level after demodulation on
channel 2 (and removed automatically).
In FM mode, the DC offset value gives a direct value of the carrier frequency offset which is
used to compensate the DCO with the CAROFFSET2 value in the event of an out-of-standard
offset. The range and the resolution depend upon the FM bandwidth programmed defined in
register BCOEFF2. See Table 19.
Table 19: FM_DCL/R Range and Resolution
FM mode
Range (kHz)
Resolution (kHz)
Small
± 96
0.750
Standard & A2 Standard
± 192
1.5
Medium
± 384
3
Large
± 768
6
Address (hex): 44h
Type: R/W
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
0
FM_PRESCALE[5:0]
Bit Name
Reset
Function
Bits[7:6]
0
Reserved.



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