BH7240 View Datasheet(PDF) - ROHM Semiconductor
Part Name
Description
Manufacturer
BH7240 Datasheet PDF : 9 Pages
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Multimedia ICs
BH7240AKV
•Pin descriptions
Pin No.
1
2
3
4
5
6
7
8
9
Pin name
BCLAMP
AGND2
ROUT
GOUT
BOUT
YOUT
COUT
VOUT
AVCC2
10
YTRAP
11
N.C.
12
N.C.
13
NT / PAL
14
SYNCIN
15
SCIN
16
RDATA7
17
RDATA6
18
RDATA5
19
RDATA4
20
DVDD
21
RDATA3
22
RDATA2
23
RDATA1
24
RDATA0
25
GDATA7
26
GDATA6
27
GDATA5
28
GDATA4
29
GDATA3
30
GDATA2
31
GDATA1
32
GDATA0
33
BDATA7
34
BDATA6
35
BDATA5
36
BDATA4
37
BDATA3
38
BDATA2
39
BDATA1
Function
Analog blue signal clamping pin
GND pin for 75Ω driver
Analog red signal output. Internal 75Ω driver
Analog green signal output. Internal 75Ω driver
Analog blue output. Internal 75Ω driver
Luminance signal output. Internal 75Ω driver
Chrominance signal output. Internal 75Ω driver
Composite video signal output. Internal 75Ω driver
Power supply pin for 75Ω driver
Luminance trap filter connection pin. Connecting a trap filter eliminates the chrominance
band component included in the luminance signal, and reduces the amount of chrominance
color. Output impedance is approximately 2kΩ. This is effective only for composite video
output.
This pin is not connected within the IC.
This pin is not connected within the IC.
Video output method selector pin. NTSC when HIGH, PAL when LOW
Composite SYNC input. For LOW input, SYNC is output to YOUT and VOUT. At the same
time, DC clamping of the RGB signal takes place.
Color subcarrier input. Sine waves of a frequency corresponding to the required output method,
or pulse waves with a duty of 50%, should be input in a range not exceeding VCC-GND.
Red data input pin (bit 7)
Red data input pin (bit 6)
Red data input pin (bit 5)
Red data input pin (bit 4)
Power supply pin for digital circuit
Red data input pin (bit 3)
Red data input pin (bit 2)
Red data input pin (bit 1)
Red data input pin (bit 0)
Green data input pin (bit 7)
Green data input pin (bit 6)
Green data input pin (bit 5)
Green data input pin (bit 4)
Green data input pin (bit 3)
Green data input pin (bit 2)
Green data input pin (bit 1)
Green data input pin (bit 0)
Blue data input pin (bit 7)
Blue data input pin (bit 6)
Blue data input pin (bit 5)
Blue data input pin (bit 4)
Blue data input pin (bit 3)
Blue data input pin (bit 2)
Blue data input pin (bit 1)
3
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