stv8226t STMicroelectronics, stv8226t Datasheet - Page 55
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stv8226t
Manufacturer Part Number
stv8226t
Description
Multistandard Tv Audio Processor And Digital Sound Demodulator
Manufacturer
STMicroelectronics
Datasheet
1.STV8226T.pdf
(97 pages)
- Current page: 55 of 97
- Download datasheet (2Mb)
STV82x6
9.8
Address (hex): 3Ah
Type: R/W
Address (hex): 3Dh
Type: R/W
CAROFFSET2
Bit Name
Bit Name
Bit 7
Bit 7
DIF_POL
Bits[7:3]
0
MAE
[7:0]
ECT
CAROFFSET2
NICAM Registers
NICAM_CTRL
Bit 6
Bit 6
Reset
00000000
00000
0
Reset
0
0
0
Reserved.
0: No polarity inversion (Default)
1: Polarity inversion of the differential decoding
Error Counter Timer: Defines the NICAM error measurement period
0: 128 ms (Default)
1: 64 ms
Max. Allowed Errors. Defines the NICAM error decoding for mute function.
0: 511 Max (Default)
1: 255 Max
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
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
register
Bit 5
Bit 5
0
Channel 2 DCO Carrier Offset Compensation
NICAM Decoder Control Register
CAROFFSET2
CAROFFSET2[7:0] (S)
Bit 4
Bit 4
0
to exactly compensate the carrier offset on Channel 2.
Bit 3
Bit 3
0
Function
Function
DIF_POL
Bit 2
Bit 2
FM_DCR
FM_DCR
can be directly loaded in in
Bit 1
Bit 1
ECT
and FM_DCL.
Register List
MAE
Bit 0
Bit 0
55/97
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