TDA8753A Datasheet, PDF (11/20 Pages) NXP Semiconductors – YUV 8-bit analog-to-digital interface

Philips Semiconductors
YUV 8-bit analog-to-digital interface
Product specification
TDA8753A
Table 4 Internal ADC data coding as a function of the analog input
STEP
Underflow
0
1
....
16
....
128
....
254
255
Overflow
INPUT VOLTAGE
<0.26
0.26
-
....
0.34
....
0.89
....
−
1.52
>1.52
INTERNAL BINARY OUTPUTS
00000000
00000000
00000001
........
00010000
........
10000000
........
11111110
11111111
11111111
REMARKS
V_DECref(L) /1.5
clamp level of Y channel
clamp level of U and V channels
V_ref(H) − 0.1 V/1.5
Table 5 Coring and luminance delay
UV_CORING
F1:1 F1:0
0
0
0
1
1
0
1
1
INTERNAL CORING CORRECTION
IN U AND V CHANNELS
(AROUND CODE 128 LEVEL)
coring off
+1/−1
+1/−0
+2/−1
Y_VAR_DELAY
F2:1
F2:0
0
0
0
1
1
0
1
1
INTERNAL DELAY FOR Y PATH
AT PREFILTER INPUT
(CLOCK PULSE)
0
1
2
3
1996 Jan 12
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