CXA2060BS データシートの表示（PDF） - Sony Semiconductor

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CXA2060BS

Y/C/RGB/D for PAL/NTSC/SECAM Color TVs

Sony Semiconductor 

Pin

No.

Symbol

19 HD

CXA2060BS

Equivalent circuit

Description

147

19

H drive signal output.

This is open collector output for the NPN

20k

transistor.

20k

20 AFC FIL

21 IK IN

22 R OUT

23 G OUT

24 B OUT

147 1k 100k

20

Connects an AFC lag lead filter.

100k

CR is connected to GND.

30k

147 4k

21

3k

200

22

12k

23

24

2mA

CRT beam current input (cathode current

IK).

This current is converted into voltage

within the IC.

In order to eliminate any adverse effects

exercised by CRT leak current (max.

100µA) for AKB operation, it is clamped at

the V blanking interval. The AKB loop is

activated by comparing the reference

pulse component of this signal to the

reference voltage within the IC.

The RGB output cutoff can be varied using

CUTOFF of the bus. The IK reference

signal current can be controlled ±50%

around a 13µA center. Since the beam

current of the video section is large, be

sure to attach a zener diode of about 4V to

the pin to protect the IC.

RGB signal output.

Outputs 3.0Vp-p during 100% white input.

PICTURE: 3Fh

DRIVE: 3Fh

BRIGHT: 1Fh

–8–

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