adv7344 Analog Devices, Inc., adv7344 Datasheet - Page 85

• Manufacturer Part Number: adv7344
• Description: Multiformat Video Encoder Six 14-bit Noise Shaped Video Dacs
• Manufacturer: Analog Devices, Inc.

APPENDIX 8—VIDEO STANDARDS
ANALOG WAVEFORM
ANALOG WAVEFORM
SAMPLE NUMBER
SAMPLE NUMBER
INPUT PIXELS
INPUT PIXELS
SMPTE 293M
SMPTE 274M
FVH* = FVH AND PARITY BITS
SAV/EAV: LINE 1 TO 562: F = 0
SAV/EAV: LINE 563 TO 1125: F = 1
SAV/EAV: LINE 1 TO 20; 561 TO 583; 1124 TO 1125: V = 1
SAV/EAV: LINE 21 TO 560; 584 TO 1123: V = 0
FOR A FRAME RATE OF 30Hz: 40 SAMPLES
FOR A FRAME RATE OF 25Hz: 480 SAMPLES
522
FVH* = FVH AND PARITY BITS
SAV: LINE 43 TO 525 = 200H
SAV: LINE 1 TO 42 = 2AC
EAV: LINE 43 TO 525 = 274H
EAV: LINE 1 TO 42 = 2D8
523
ACTIVE
VIDEO
719
2112
524
F
F
F
F
EAV CODE
EAV CODE
4 CLOCK
4 CLOCK
0
0
0
0
4T
525
0
0
0
0
H*
H*
F
V
F
V
2116 2156
723 736
Figure 134. EAV/SAV Input Data Timing Diagram (SMPTE 274M)
Figure 135. EAV/SAV Input Data Timing Diagram (SMPTE 293M)
1
0
*1
H
DATUM
2
DIGITAL HORIZONTAL BLANKING
(OPTIONAL) OR BLANKING CODE
DIGITAL HORIZONTAL BLANKING
5
0
Figure 136. SMPTE 293M (525p)
H
2199
DATUM
6
799
ANCILLARY DATA
0
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272T
7
VERTICAL BLANK
ANCILLARY DATA
(OPTIONAL)
8
44
9
12
13
853
F
F
SAV CODE
188
4 CLOCK
0
0
SAV CODE
14
F
F
4 CLOCK
0
0
0
0
H*
4T
F
V
857
15
0
0
V
H*
F
192
C
b
0
C
b
16
Y
ACTIVE LINE
Y
ACTIVE LINE
C
r
DIGITAL
DIGITAL
C
42
1920T
r
43
Y
ACTIVE
VIDEO
C
r
C
r
2111
Y
44
Y
719
ADV7344