ADV7180
Bits (Shading Indicates Default
State)
Comments
LQFP-64 LFCSP-40
Subaddress Register
0x39 PAL Comb Control
Bit Description
Notes
7
6
5
4
3
2
1
0
YCMP[2:0]. Luma
comb mode, PAL.
0
0
0
Adaptive 5-line, 3-tap luma
comb
1
1
1
1
0
1
1
1
0
0
0
1
Use low-pass notch
Fixed luma comb
Top lines of memory
All lines of memory
Fixed luma comb (5-line)
Fixed luma comb (3-line)
Bottom lines of memory
CCMP[2:0]. Chroma
comb mode, PAL.
0
0
0
3-line adaptive
for CTAPSN = 01
4-line adaptive
for CTAPSN = 10
5-line adaptive
for CTAPSN = 11
1
1
0
0
0
1
Disable chroma comb
Fixed 2-line for CTAPSN = 01 Top lines of memory
Fixed 3-line for CTAPSN = 10
Fixed 4-line for CTAPSN = 11
1
1
1
1
0
1
Fixed 3-line for CTAPSN = 01
Fixed 4-line for CTAPSN = 10
Fixed 5-line for CTAPSN = 11
Fixed 2-line for CTAPSN = 01
Fixed 3-line for CTAPSN = 10
Fixed 4-line for CTAPSN = 11
All lines of memory
Bottom lines of memory
CTAPSP[1:0]. Chroma
comb taps, PAL.
0
0
Adapts five to two lines
(two taps)
0
1
1
0
Not used
Adapts five to three lines
(three taps)
1
1
Adapts five to four lines
(four taps)
0x3A
ADC Control
MUX PDN override.
MUX power-down
override.
0
1
No control over power-
down for muxes and
associated channel circuit
When INSEL[3:0] is
used, unused channels
are automatically
powered down.
Allows power-down of
MUX_0/1/2 and associated
channel circuit
PWRDWN_MUX_2.
Enables power-down
of MUX_2 and
associated channel
clamp and buffer.
0
1
MUX_2 and associated
channel in normal operation
Power down MUX_2 and
associated channel operation
MUX PDN override =1
MUX PDN override =1
MUX PDN override =1
PWRDWN_MUX_1.
Enables power-down
of MUX_1 and
associated channel
clamp and buffer.
0
1
MUX_1 and associated
channel in normal operation
Power down MUX_1 and
associated channel operation
PWRDWN_MUX_0.
Enables power-down
of MUX_0 and
associated channel
clamp and buffer.
0
1
MUX_0 and associated
channel in normal operation
Power down MUX_0 and
associated channel operation
Reserved.
0
0
0
1
Set as default
Rev. A | Page 89 of 112
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