CXA1810 データシートの表示（PDF） - Sony Semiconductor

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CXA1810

Luminance and Color Signal Processing for 8mm VCR

Sony Semiconductor 

CXA1810AQ/AR

Pin

Symbol

No.

11 VG1

Pin voltage

DC

AC

2.05V

—

Equivalent circuit

Description

150

2.5k

3k

Internal reference voltage

source. (Can not be used as

external bias for Pins other

than 4, 6, and 9.)

11

12 C TRAP 2.05V

13 LIM C

2.4V

Chroma

signal

300mVp-p

output during

playback

0.6mA

270

150

300

—

150

13

Outputs chroma signal that

has passed through PB C

BPF and chroma feedback

comb filter subtracter

after frequency conversion

12

during playback.

Connects decoupling

capacitor for limiter of the

playback Y comb block.

150

14 Y COMB

OUT

1.2V

(sync tip

level)

Y signal

500mVp-p

output

15 COMB ADJ Control

—

range: 1.8V

to Vcc

10k

10k

150

1.4mA

150

15

Outputs Y signal processed by

comb filter. During playback,

the signal is output through

the sharpness circuit. If mode

E is set High, the signal is

output without passing

14

through the f sc Trap; if mode

SHP THRU is set High, the

signal is output without

passing through the sharp

-ness circuit.

VCA gain adjustment in the

comb filter block. (Refer to

Adjustment Procedure.)

—6—

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