VDP3108 Datasheet, PDF (6/61 Pages) Micronas – Single-Chip Video Processor

VDP 3108
ADVANCE INFORMATION
Table 2–1: ADC input range for PAL input Signal
Signal
CVBS
Chroma
100% CVBS
75% CVBS
video (luma)
sync
clamp level
burst
100% Chroma
75% Chroma
bias level
ADC Range [steps]
252 (clipped at 125 IRE)
213
149
64 (AGC reference)
68
64
190
143
128
Input Level [mV_pp]
–6 dB 0 dB
+4.5 dB
667
1333
2238
500
1000
1679
350
700
1175
150
300
504
300
890
670
CVBS/Y
upper headroom = 38 steps = 1.4 dB = 25 IRE
255
ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ₂₁₇
ÍÍÍÍÍÍÍÍÍÍ ^white
192
video = 100 IRE
128
black
68
= clamp
level
sync = 41 IRE
032^{ÍÍÍÍÍÍÍÍÍÍ}
lower headroom = 4 steps = 0.2 dB
Chroma
headroom = 56 steps = 2.1 dB
ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ ₂₂₈
192
128
80
3ÍÍ2 ÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ
Fig. 2–2: ADC ranges for CVBS/Luma and Chroma, PAL input signal
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MICRONAS INTERMETALL