TMC22151AKHC CADEKA [Cadeka Microcircuits LLC.], TMC22151AKHC Datasheet - Page 29

• Manufacturer Part Number: TMC22151AKHC
• Description: Multistandard Digital Video Decoder Three-Line Adaptive Comb Decoder Family, 8 & 10 bit
• Manufacturer: CADEKA [Cadeka Microcircuits LLC.]

PRODUCT SPECIFICATION
Control Register Definitions
Normalized Subcarrier Frequency (24)
Normalized Subcarrier Frequency (25)
REV. 1.0.0 2/4/03
Reg
24
24
24
24
24
Reg
25
CLMPEN
7
7
Bit
7
6
5-4
3
2-0
Bit
7-0
PFLTEN
Name
DREFSEL
PFLTBY
CLPSEL
VCLPEN
BAND
Name
CPDLY
6
6
2-0
7-0
1-0
5
5
CLPSEL
Description
Decoder Reference Signal Select. When HIGH, enables a negative going
clamp pulse on the DREF pin. The position of the clamp pulse is controlled
by register 24. When LOW the DREF pin is HIGH during the active video
portion of each line and LOW during the horizontal and vertical blanking
intervals.
Phase error filter bypass. When HIGH, no filtering is done on the phase
error signals for the comb filter adapter. When LOW, the filter is enabled.
Internal black level clamp selection.
Vertical clamp filter enable. When LOW, vertical clamp filter is disabled.
When HIGH, vertical clamp filter is enabled.
Clamp guard band. When an error value between two consecutive lines
black level is less than the guard band, it does not effect the filtered black
level.
Description
Clamp pulse delay. Controls the number of clock cycles from hsync before
the 0.5 Sec clamp pulse is output to the AVOUT pin. This option is only
enabled when register 24 bit 7 is set HIGH.
BANDS[2:0]
CLMP[1:0]
(continued)
000
001
010
011
100
101
110
111
00
01
10
11
1-0
4
4
CPDLY
Clamp disabled, black level set to 240
Clamp disabled, black level set to 256
Clamp enabled, use Delayed VIDEOB input as
reference
Clamp enabled, use LPF as reference
No guard band
error value < 2
error value < 4
error value < 6
error value < 8
error value < 10
error value < 12
error value < 15
7-0
CLPBY
3
3
Function
Function
2
2
CLPOF
1
1
2-0
TMC22x5yA
0
0
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