BH7236 View Datasheet(PDF) - ROHM Semiconductor
Part Name
Description
Manufacturer
BH7236 Datasheet PDF : 6 Pages
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Multimedia ICs
•Application example (NTSC color TV signal)
BH7236AF
1
Analog R input
0.1µ
Analog G input
2 CLAMP
SYNC
3 CLAMP
0.1µ
Analog B input
SYNC
4 CLAMP
0.1µ
SYNC
N.C. 5
Color subcarrier input
6
VCC
7
MATRIX
BGPOUT 8
N.C. 9
BFP
BFP GEN.
Composite SYNC input
10
SYNCOUT 11
VCC
12
SYNC
24
75Ω
23 ROUT
75Ω
22 GOUT
75Ω
21 BOUT
+ 75 Color TV signal
75Ω
20
220µ
VCC
19
18 N.C.
17
75Ω
16 YOUT
75Ω
15 COUT
14 N.C.
13 N.C.
•Operation notes
(1) Input impedance at the input terminals should be as
low as possible as the analog RGB signal is clamped
there.
(2) The color subcarrier should have a duty of 50%.
Duty fluctuation will affect chroma phase.
•External dimensions (Units: mm)
15.0 ± 0.2
24
13
(3) Composite synch and burst flag pulse inputs should
conform to their respective standards, as input of an
off-standard signal will shift the burst position and
cause other problems that may prevent the TV from
displaying color images. For input, use the TTL level
and an impedance of 8kΩ.
1
12
1.27
0.4 ± 0.1
0.3Min.
0.15
SOP24
6
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