CXA1871S データシートの表示（PDF） - Sony Semiconductor

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CXA1871S

NTSC/PAL Y/C/Jungle

Sony Semiconductor 

Pin

Pin

Symbol

No.

voltage

29 V OSC —

Equivalent circuit

VCC

29

VCC

VCC

100

100

CXA1871S

Description

Connect a capacitor to generate the V

sawtooth wave.

30 V LPF 5 V

31 V PLS —

32

HD

—

33 XRAY —

VCC

30

VCC

Connect a capacitor to hold the AGC

voltage which maintains the V

sawtooth wave at a constant

amplitude.

VCC

VCC

74 k

31

18 k

VCC

V pulse output pin. A negative

polarity pulse 3 to 3.5 H width is

output from this pin.

High level: 4.5 V

Low level: 0 V

32

H drive output pin. This pin is output

at the open collector.

20 k

20 k

VCC

VCC VCC

19 k

33

VCC

63 k

30 k

30 k 27 k

40 k

X-ray protection circuit input pin.

When a pulse with a width of 7 V or

more is input, HD output becomes low

and R, G and B outputs are blanked.

This status is maintained until the

power supply is turned off.

Vilmax = 2.4 V

Vihmin = 3.0 V

—8—

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