TDA8709A Datasheet, PDF (10/28 Pages) NXP Semiconductors – Video analog input interface

Philips Semiconductors
Video analog input interface
Product specification
TDA8709A
Table 1 Video input selection (CVBS).
I1
I0
0
0
0
1
1
0
1
1
SELECTED INPUT
VIN0
VIN1
VIN2
VIN1
Table 2 CLAMP output current.
CLS
1
X⁽¹⁾
0
CLP
1
0
1
DIGITAL
OUTPUT
output < 128
output > 128
X
output < 16
16 < output
Note
1. X = don't care.
I_CLAMP
+50 µA
−50 µA
0 µA
+50 µA
−50 µA
Table 3 FOEN input coding.
FOEN
0
1
D0 TO D7
active, two's complement
high impedance
Table 4 Output coding and input voltage (typical values).
STEP
Underflow
0
1
.
.
254
255
Overflow
V_ADCIN
BINARY OUTPUTS
TWO'S COMPLEMENT
D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0
−
0000000010000000
V_CCA − 2.52 V 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0
−
0000000110000001
−
................
−
................
−
1111111001111110
V_CCA − 1.52 V 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1
−
1111111101111111
June 1994
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