ISL59885_06 Datasheet, PDF (13/14 Pages) Intersil Corporation – Auto-Adjusting Sync Separator for HD and SD Video

ISL59885
Simplified Block Diagram
SYNC TIP REF
1.5V
CLAMP
R_F
620Ω ^CF
510pF
C₃
56nF
COMPOSITE
C_{1 VIDEO IN}
2
0.1µF
GND 4
C_SET
6
REF
GEN
SLICE
1.57V
SYNC
TIP
70mV
SLICE
V_DD
COMP.
-
+
V_DD
8 _5V
C₂
0.1µF
1 ^COMPOSITE
SYNC
HD
DETECTOR
5 HD
V SYNC
3 ^VERTICAL
SYNC OUT
H SYNC
7 ^HORIZONTAL
SYNC OUT
2H
ELIMINATOR
C_SET Bias Circuit
V_DD
V_DD
C_SYNC
PULSE
5µs
C_SET
+
-
56nF
I_BIAS - TIMING
13
FN7442.5
August 9, 2006