STV82X6 STMICROELECTRONICS [STMicroelectronics], STV82X6 Datasheet - Page 46
STV82X6
Manufacturer Part Number
STV82X6
Description
Multistandard TV Audio Processor and Digital Sound Demodulator
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.STV82X6.pdf
(95 pages)
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Register List
46/95
Address (hex): 1Fh
Type: R
Address (hex): 20h
Type: R/W
Address (hex): 21h
Type: R/W
CETH1[7:0]
Bit Name
Bit Name
CRF1[7:0]
Bit 7
Bit 7
Bit 7
CRF1
CETH1
SQTH1
Bit 6
Bit 6
Bit 6
00100000
00000000
Reset
Reset
Channel 1 Carrier Recovery Frequency
Displays the instantaneous frequency offset of the Channel 1 Baseband PLL Demodulator.
This register is used to compare the carrier level in the channel and the threshold value. This
level is measured after the channel filter and is relative to the full scale reference level (0 dB).
This is used as part of the validation of an FM signal, if the carrier level is below the threshold,
the signal is considered to be non-valid.
CETH
FFh
80h
40h
20h
Bit 5
Bit 5
Bit 5
Channel 1 Baseband PLL Demodulator Offset
Channel 1 FM/AM Carrier Level Threshold
Channel 1 FM Squelch Threshold Register
Threshold (dB)
-6
-12
-18
-24 (Default
Bit 4
Bit 4
Bit 4
SQTH1[7:0]
CETH1[7:0]
CRF1[7:0]
CETH
10h
08h
00h
Bit 3
Bit 3
Bit 3
Function
Function
Threshold (dB)
-32
-38
OFF (all carrier levels are accepted)
Bit 2
Bit 2
Bit 2
Bit 1
Bit 1
Bit 1
STV82x6
Bit 0
Bit 0
Bit 0
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