STV2180A

BASE BAND CHROMA DELAY LINE

February 1997

PRELIMINARY DATA

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DIGITAL GROUND

SUPER SAND CASTLE

PLL LOOP FILTER

B-Y OUTPUT

R-Y OUTPUT

R-Y INPUT

Not to Be Connected

Not to Be Connected

REF. CURRENT

INTERNAL SUPPLY

SUPPLY VOLTAGE

ANALOG GROUND

Not to Be Connected

B-Y INPUT

DGND

SSC

FPLL

B-YO

R-YO

R-YI

I

REF

V

INT

V

CC

AGND

B-YI

NC

NC

NC

PIN CONNECTIONS

DIP14

(Plastic Package)

ORDER CODE : STV2180A

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DUAL SWITCHED CAPACITOR DELAY LINE

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3MHz CLOCK DERIVED FROM 6MHz VCO

LOCKED BY THE BURST GATE PULSE

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SAMPLE AND HOLD CIRCUITS AND LOW-

PASS FILTERS TO SUPPRESS THE 3MHz

CLOCK RESIDUAL

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CLAMPED B-Y AND R-Y INPUTS

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OUTPUT BUFFERS

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ADJUSTMENT-FREE APPLICATION

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DIP14 PACKAGE

DESCRIPTION

The STV2180Ais an integrated base band chroma

delay line with one line delay, which has been

designed to match chroma decoders with colour

difference signal outputs (R-Y) and (B-Y).

This is advance information on a new product now in development or undergoing evaluatio n. Details are subject to change without notice.

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