SGS Thomson Microelectronics STV2180A Datasheet
.
DUALSWITCHEDCAPACITORDELAYLINE
.
3MHz CLOCK DERIVED FROM 6MHz VCO
LOCKEDBY THE BURST GATEPULSE
.
SAMPLE AND HOLD CIRCUITS AND LOWPASS FILTERS TO SUPPRESS THE 3MHz
CLOCKRESIDUAL
.
CLAMPEDB-YAND R-YINPUTS
.
OUTPUTBUFFERS
.
ADJUSTMENT-FREE APPLICATION
.
DIP14PACKAGE
STV2180A
BASE BAND CHROMADELAY LINE
PRELIMINARY DATA
DIP14
(PlasticPackage)
DESCRIPTION
TheSTV2180Aisan integratedbaseband chroma
delay line with one line delay, which has been
designed to match chroma decoders with colour
differencesignal outputs (R-Y) and (B-Y).
PIN CONNECTIONS
Not to Be Connected
R-Y INPUT
R-Y OUTPUT
B-Y OUTPUT
PLL LOOP FILTER
SUPER SANDCASTLE
DIGITAL GROUND
R-YI
R-YO
B-YO
FPLL
SSC
DGND
1
2
3
4
5
6
7
ORDER CODE :
14
13
12
11
10
9
8
B-YINC
NC
AGND
V
CC
V
INT
I
REF
NC
STV2180A
B-Y INPUT
Not to Be Connected
ANALOGGROUND
SUPPLYVOLTAGE
INTERNAL SUPPLY
REF. CURRENT
Not toBe Connected
February 1997
This is advance information on a newproductnow in development or undergoing evaluation. Detailsare subject to change without notice.
2180A-01.EPS
1/6
STV2180A
BLOCKDIAGRAM
R-YI
INPUT
2 3
CLAMP
DELAY
LINE
SAMPLE
AND
HOLD
STV2180A
R-YO
LPF
B-YI
SSC
14
6
INPUT
CLAMP
SSC
SELECT
V
CC
FPLL
SAMPLE
AND
HOLD
5
CURRENT
REF
I
REF
TEST
791011 12
DELAY
LINE
6MHz PLL AND
CLOCK GENERATOR
BANDGAP
V
INT
DGND AGND
B-YO
4LPF
Not to be
connected
ABSOLUTE MAXIMUMRATINGS
Symbol Parameter Value Unit
Supply Voltage (Pin 11) 11 V
Operating Ambiant Temperature 0 to 70 °C
Storage Temperature -25 to +150 °C
Junction-Ambiant Thermal Resistance Pd=1W 90 °C/W
R
V
T
T
th(j-a)
CC
A
stg
2180A-02.EPS
2180A-01.TBL
2/6
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