EVAL-ADV7180LFEBZ Analog Devices Inc, EVAL-ADV7180LFEBZ Datasheet - Page 88

• Manufacturer Part Number: EVAL-ADV7180LFEBZ
• Description: BOARD EVAL FOR ADV7180 LFCSP
• Manufacturer: Analog Devices Inc

Specifications of EVAL-ADV7180LFEBZ

• Main Purpose: Video, SDTV Video Decoder - NTSC, PAL, SECAM
• Embedded: No
• Utilized Ic / Part: ADV7180
• Primary Attributes: CVBS (Composite), Y/C (S-video), and YPrPb (Component) Inputs
• Secondary Attributes: 8-bit ITU-R BT.656 YCrCb 4:2:2 Output
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADV7180
Subaddress
0x27
0x2B
0x2C
0x2D
Register
Pixel delay
control
Misc gain
control
AGC mode
control
Chroma Gain
Control 1,
Chroma Gain1
(CG)
Bit Description
LTA[1:0]; luma timing
adjust allows the user to
specify a timing difference
between chroma and
luma samples
Reserved
CTA[2:0]; chroma
timing adjust allows
a specified timing
difference between
the luma and chroma
samples
AUTO_PDC_EN;
automatically programs
the LTA/CTA values so
that luma and chroma are
aligned at the output for
all modes of operation
SWPC; allows the Cr and
Cb samples to be swapped
PW_UPD; peak white
update determines the
rate of gain
Reserved
CKE; color kill enable
allows the color kill
function to be switched
on and off
Reserved
CAGC[1:0]; chroma auto-
matic gain control selects
the basic mode of
operation for the AGC in
the chroma path
Reserved
LAGC[2:0]; luma auto
matic gain control selects
the mode of operation for
the gain control in the
luma path
Reserved
CMG[11:8]/CG[11:8]; in
manual mode, the chroma
gain control can be used to
program a desired manual
chroma gain; in auto mode,
it can be used to read back
the current gain value
Reserved
CAGT[1:0]; chroma auto
matic gain timing allows
adjustment of the chroma
AGC tracking speed
7
0
1
1
1
0
0
1
1
(Shading Indicates Default State)
6
0
1
0
1
0
0
0
0
1
1
1
1
0
1
0
1
Rev. F | Page 88 of 116
5
0
0
0
0
1
1
1
1
1
0
0
1
1
0
0
1
1
1
4
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
1
Bits
3
0
1
0
1
0
1
0
1
0
1
0
2
0
0
1
1
1
0
0
1
1
0
0
0
1
1
0
0
0
1
0
1
0
1
0
1
0
1
0
Comments
No delay
Luma one clock (37 ns) late
Luma two clocks (74 ns) early
Luma one clock (37 ns) early
Set to 0
Not a valid setting
Chroma + two pixels (early)
Chroma + one pixel (early)
No delay
Chroma − one pixel (late)
Chroma − two pixels (late)
Chroma − three pixels (late)
Not a valid setting
Use values in LTA[1:0] and CTA[2:0]
for delaying luma/chroma
LTA and CTA values determined
automatically
No swapping
Swap the Cr and Cb output samples
Update once per video line
Update once per field
Set to default
Color kill disabled
Color kill enabled
Set to default
Manual fixed gain
Use luma gain for chroma
Automatic gain
Freeze chroma gain
Set to 1
Manual fixed gain
Reserved
Peak white algorithm on
Reserved
Peak white algorithm off
Reserved
Reserved
Freeze gain
Set to 1
Set to 1
Slow (TC = 2 sec)
Medium (TC = 1 sec)
Reserved
Adaptive
Notes
CVBS mode
LTA[1:0] = 00b,
S-Video mode
LTA[1:0] = 01b,
YPrPb mode
LTA[1:0] = 01b
CVBS mode
CTA[2:0] = 011b,
S-Video mode
CTA[2:0] = 101b,
YPrPb mode
CTA[2:0] = 110b
Peak white must
be enabled; see
LAGC[2:0]
For SECAM color
kill, the threshold is
set at 8%; see
CKILLTHR[2:0]
Use CMG[11:0]
Based on color burst
Use LMG[11:0]
Blank level to
sync tip
Blank level to
sync tip
CAGC[1:0] settings
decide in which
mode CMG[11:0]
operates
Has an effect only
if CAGC[1:0] is set
to autogain (10)