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STV8247DSXT Datasheet(PDF) 64 Page - STMicroelectronics

Part # STV8247DSXT
Description  Digital Audio Decoder/Processor for A2 and NICAM Television/Video Recorders
PDF  149 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STV8247DSXT Datasheet(HTML) 64 Page - STMicroelectronics

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Register List
STV82x7
64/149
BCOEFF1
Channel 1 Baseband PLL Loop Filter Integral
Coefficient & DCO Gain
(*) Refer to DEMOD_CTRL (DEMOD_MODE[2:0])
CRF1
Channel 1 Baseband PLL Demodulator Offset
CETH1
Channel 1 FM/AM Carrier Level Threshold
Address: 1Eh
Type: R/W
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
BCOEFF1[7:0]
Bit Name
Reset
Function
BCOEFF1[7:0]
00010010
Used to program the Integral Coefficient of the baseband PLL loop filter and DCO gain
Defines the bandwidth of the loop. For values, refer to Table 12.
Table 12: Baseband PLL Loop Filter Adjustment (FM Mode)
FM Mode
Small
Standard
Medium
Wide*
A2 Standard
ACOEFF
10h
22h
2Ch
2Ch
10h
BCOEFF
1Ah
12h
0Ah
0Ah
11h
FM_DEV max (kHz)
62.5
125
250
500
125
DCO Range (kHz)
96
192
384
768
192
Address: 1Fh
Type: R
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
CRF1[7:0]
Bit Name
Reset
Function
CRF1[7:0]
(00000000) Channel 1 Carrier Recovery Frequency
Displays the instantaneous frequency offset of the Channel 1 Baseband PLL Demodulator.
Address: 20h
Type: R/W
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
CETH1[7:0]



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