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GT4123B Schematic ( PDF Datasheet ) - ETC

Teilenummer GT4123B
Beschreibung Two Channel Video Multiplier
Hersteller ETC
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Gesamt 5 Seiten
GT4123B Datasheet, Funktion
GT4123B Two Channel
Video Multiplier
DATA SHEET
FEATURES
two-quadrant video multiplication
operation from ±4.5 V to ±13.2 V supply voltages
20 MHz ±0.1 dB video & control channel bandwidth
ultra low differential gain & differential phase
convenient 8 pin package
APPLICATIONS
Multimedia Graphics Overlay
Production Switchers
Linear Keyers
PIN CONNECTIONS
GT4123B
OUTPUT 1
FREQ. COMP
CONTROL
GROUND
2
3
4
8 Vcc
7 VIDEO IN B
6 VEE
5 VIDEO IN A
ORDERING INFORMATION
Part Number
GT4123BCDA
GT4123BCKA
GT4123BCTA
Package Type
8 pin PDIP
8 pin SOIC
8 pin SOIC Tape
Temperature Range
0o to 70o C
0o to 70o C
0o to 70o C
DESCRIPTION
The GT4123B is a monolithic dual-channel video multiplier
for use in a wide range of applications including broadcast
and multimedia.
Featuring two wideband video inputs and a single control
input, the GT4123B achieves broadcast quality mixing of
two video input signals to a single output by implementing
the function:
VO = [ ( VC • VA) + (1 - VC) • VB ]
where VC is the control input voltage, which may be varied
continuously over the range 0 V to 1 V, and VA and VB are
the video input signals.
The GT4123B is a low power version of the GT4123 and
GT4123A Video Multipliers which operates from ± 5 V
supply voltages and typically draws only 15 mA of current.
FUNCTIONAL BLOCK DIAGRAM
VIDEO IN A
VIDEO IN B
CONTROL
MULTIPLIER
CORE
FREQ
COMP
OUTPUT
VREF (0.5V)
(INTERNAL)
Document No. 521 - 20 - 01
GENNUM CORPORATION P.O. Box 489, Stn A, Burlington, Ontario, Canada L7R 3Y3 tel. (905) 632-2996 fax: (905) 632-2055
Japan Branch: A-302, M i yamae Vi l l age, 2–10–42 M i yamae, Suginami–ku Tokyo 168, Japan tel. (03) 3247-8838 fax (03) 3247-8839





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