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PDF GT4123BCDA Data sheet ( Hoja de datos )
| Número de pieza | GT4123BCDA | |
| Descripción | Two Channel Video Multiplier | |
| Fabricantes | ETC | |
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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
1 page  
0.03
0.02
0.01
0
-0.01
-0.02
-0.03
1
dg
dp
FREQUENCY (MHz)
Fig. 6 dg & dp vs Frequency
10
CH-B
100
CH-A
50
0
-02.2 1
00 .0 1
02.2 3 04.4 5 06 .6 7 08.8 9
CONTROL VOLTAGE (VC)
110.0 1 1 112.2
Fig. 8 Control Characteristics
2.5
2
1.5
1
0.5
0
0.1
1 10
FREQUENCY (MHz)
Fig. 7 Output Resistance vs Frequency
DOCUMENT
IDENTIFICATION
PRODUCT PROPOSAL
This data has been compiled for market investigation purposes
only, and does not constitute an offer for sale.
ADVANCE INFORMATION NOTE
This product is in a development phase and specifications are
subject to change without notice. Gennum reserves the right to
remove the product at any time. Listing the product does not
constitute an offer for sale.
PRELIMINARY DATA SHEET
The product is in a preproduction phase and specifications are
subject to change without notice.
DATA SHEET
The product is in production. Gennum reserves the right to make
changes at any time to improve reliability, function or design, in
order to provide the best product possible.
Gennum Corporation assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement.
© Copyright September 1994 Gennum Corporation. All rights reserved. Printed in Canada.
5 521- 20 - 01
5 Page | ||
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| PDF Descargar | [ Datasheet GT4123BCDA.PDF ] | |
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