CXA2050 View Datasheet(PDF) - Sony Semiconductor

Part Name

Description

Manufacturer

CXA2050

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

Sony Semiconductor 

Pin

No.

Symbol

14 – (R-Y) IN

15 – (B-Y) IN

16 SGND2

17 YS1/VM

18 R1IN

19 G1IN

20 B1IN

21 YS2

Equivalent circuit

CXA2050S

Description

Color difference signal inputs.

Clamped to 5.5V at the burst timing.

14

1.5k

15

Standard input levels for 75% CB:

B-Y: 1.33Vp-p

R-Y: 1.05Vp-p

70k

100µA

10k

17

20k

GND for the RGB block.

Input which combines YS1SW control with

VM circuit ON/OFF function. Supports

with ternary.

VMSW (VthVM = 0.9V)

VILVM ≤ 0.3V VM circuit ON

VIHVM ≥ 1.5V VM circuit OFF

YS1SW (VthYS1 = 2.5V)

VILYS1 ≤ 1.7V Y/color difference input

selected

VIHYS1 ≥ 3.3V RGB1 input selected

Setting YS1OFF of I2C bus to 1, input for

this pin is invalid.

200 Analog R, G and B signal inputs.

18

Input a 0.7Vp-p (no sync, 100 IRE) signal

via a capacitor.

19

The signal is clamped to 5.7V at the burst

20

timing of the signal input to the HSIN

30k

input (Pin 53).

100µA

YM/YS2SW YS2 control input.

When YS2 is high, the RGB2 block signal

is selected; when YS2 is low, the YS1SW

21

40k

output signal is selected.

VILMAX = 0.4V

VIHMIN = 1.0V

22 YM

100µA

YM/YS2 SW YM control input.

When YM is high, the YS1SW output

signal is attenuated by 6dB.

22

VILMAX = 0.4V

40k

VIHMIN = 1.0V

–6–

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