GDC21D003 Datasheet, PDF (23/77 Pages) Hynix Semiconductor – VSB Receiver

GDC21D003
Address 34 :
7
EQmodeTIN
W/R Updating range of the training sequence. The range value can be changed with
combination of these three bits. Initial value is “000”.
EQmodeTIN is ‘0’
00 : 574 symbols of field sync are used for equalization.
01 : 637 symbols of field sync are used for equalization.
[6:5]
TRAINmodeIN
[1: 0]
W/R
10 : 700 symbols of field sync are used for equalization.
11 : 820 symbols of field sync are used for equalization.
EQmodeTIN is ‘1’
00 : 574 symbols of field sync are used for equalization.
01 : 637 symbols of field sync are used for equalization.
10,11 : 700 symbols of field sync are used for equalization.
Comb filter output gain selection signal.
‘0’ : the gain of the Comb filter output is 0
4
CombOutHalfIN W/R ‘1’ : the gain of the Comb filter output is 1/2
When Comb filter is activated this signal is valid.
Initial value is ‘1’.
‘0’ : uses data segment during equalization.
3
nDSadptIN
W/R ‘1’ : not uses data segment during equalization.
Default value is ‘0’.
‘0’ : noise removed output from Equalizer
2
nEQoutIN
W/R ‘1’ : bypassed output
Initial value is ‘0’.
The location of center tap can be changed using these two bits. Initial value is
[1:0] FLTtestIN[1:0]
“00”.
W/R
00 : Center tap is 32^nd tap
01 : Center tap is 44^th tap
10 : Center tap is 52^nd tap
11 : Center tap is 60^th tap
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