ADV7183AKST Analog Devices Inc, ADV7183AKST Datasheet - Page 53

• Manufacturer Part Number: ADV7183AKST
• Description: IC VIDEO DECODER NTSC 80-LQFP
• Manufacturer: Analog Devices Inc
• Type: Video Decoderr

Specifications of ADV7183AKST

• Applications: Projectors, Recorders, Security
• Voltage - Supply, Analog: 3.15 V ~ 3.45 V
• Voltage - Supply, Digital: 1.65 V ~ 2 V
• Mounting Type: Surface Mount
• Package / Case: 80-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

CGMS Data Registers
CGMS1[7:0], Address 0x96 [7:0],
CGMS2[7:0], Address 0x97 [7:0],
CGMS3[7:0], Address 0x98 [7:0]
Figure 33 shows the bit correspondence between the analog
video waveform and the CGMS1/CGMS2/CGMS3 registers.
CGMS3[7:4] are undetermined and should be masked out by
software.
Table 144. CGMS Access Information
Signal Name
CGMS1[7:0]
CGMS2[7:0]
CGMS3[3:0]
Table 145. CCAP Access Information
Signal Name
CCAP1[7:0]
CCAP2[7:0]
50 IRE
40 IRE
11.0 µ s
Register Location
CCAP 1 [7:0]
CCAP 2 [7:0]
Register Location
CGMS 1 [7:0]
CGMS 2 [7:0]
CGMS 3 [3:0]
FREQUENCY = F
REFERENCE COLOR BURST
AMPLITUDE = 40 IRE
SEQUENCE
10.5
RUN-IN
10.003µs
(9 CYCLES)
±
0.25µs
SC
27.382µs
= 3.579545MHz
START
CODE
Figure 34. Closed Caption Data Extraction
38.4 µ s
42.5 µ s
Figure 33. CGMS Data Extraction
0
1
Rev. B | Page 53 of 104
(CLOCK RUN-IN)
OF 0.5035MHz
2
12.91µs
7 CYCLES
WSS1[7:0]
3
153d
154d
150d
151d
152d
4
5
Closed Caption Data Registers
CCAP1[7:0], Address 0x99 [7:0],
CCAP2[7:0], Address 0x9A [7:0]
Figure 34 shows the bit correspondence between the analog
video waveform and the CCAP1/CCAP2 registers.
Notes
•
•
6
Address
Address
7
CCAP1[7] contains the parity bit from the first word.
CCAP2[7] contains the parity bit from the second word.
Refer to the GDECAD Gemstar Decode Ancillary Data
Format, Address 0x4C [0] section.
0
0x99
0x9A
S
T
A
R
T
0x96
0x97
0x98
0
1
WSS2[5:0]
CCAP1[7:0]
1
2 3 4 5 6 7 0 1 2 3 4 5 6 7
2
BYTE 0
3
4
33.764µs
Register Default Value
Readback only.
Readback only.
Readback only.
Register Default Value
Readback only.
Readback only.
P
A
R
Y
T
I
5
CCAP2[7:0]
BYTE 1
ACTIVE
VIDEO
P
A
R
T
Y
I
ADV7183A