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STV2180A Datasheet

  • STV2180A

  • BASE BAND CHROMA DELAY LINE

  • 6頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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STV2180A
BASE BAND CHROMA DELAY LINE
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PRELIMINARY DATA
DUAL SWITCHED CAPACITOR DELAY LINE
3MHz CLOCK DERIVED FROM 6MHz VCO
LOCKED BY THE BURST GATE PULSE
SAMPLE AND HOLD CIRCUITS AND LOW-
PASS FILTERS TO SUPPRESS THE 3MHz
CLOCK RESIDUAL
CLAMPED B-Y AND R-Y INPUTS
OUTPUT BUFFERS
ADJUSTMENT-FREE APPLICATION
DIP14 PACKAGE
DIP14
(Plastic Package)
ORDER CODE :
STV2180A
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).
PIN CONNECTIONS
Not to Be Connected
R-Y INPUT
NC
R-YI
1
2
3
4
5
6
7
14
13
B-YI
NC
B-Y INPUT
Not to Be Connected
R-Y OUTPUT
B-Y OUTPUT
PLL LOOP FILTER
SUPER SAND CASTLE
R-YO
B-YO
FPLL
SSC
12
11
10
9
8
AGND ANALOG GROUND
V
CC
V
INT
I
REF
NC
SUPPLY VOLTAGE
INTERNAL SUPPLY
REF. CURRENT
Not to Be Connected
DIGITAL GROUND DGND
February 1997
This is advance information on a new product now in development or undergoing evaluatio n. Details are subject to change without notice.
1/6
2180A-01.EPS

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