GX4314 Wideband, Monolithic
4x1 Video Multiplexer
DATA SHEET
FEATURES
•
low differential phase and gain
•
wide bandwidth, 100 MHz at -1 dB (Flattened)
•
small switching transient
•
±4.5
to
±
11 volts supplies
CIRCUIT DESCRIPTION
The GX4314 is a wideband video multiplexer implemented
in bipolar technology. This device is characterized by
excellent differential phase and gain in the enabled state,
very high off-isolation in the disabled state and fully buffered
unilateral signal path. Make-before-break switching assures
virtually glitch-free switching.
For use in NxM routing matrices, the GX4314 features a
very high, nearly constant input impedance coupled with
high output impedance in the disabled state. This allows
multiple devices to be paralleled at the inputs and outputs
without additional circuitry.
Logic inputs are TTL and 5V CMOS compatible, providing
address and chip select functions. The operation of the
devices is described in the Truth Table below.
X
X
X
X
FUNCTIONAL BLOCK DIAGRAM
IN 0
IN 1
IN 2
IN 3
X
OUTPUT
The wideband GX4314 is pin for pin compatible with the
high performance GX414, extending the flat frequency
response characteristics from 50 to 100 MHz.
APPLICATIONS
• HDTV
• Very high quality video switching
• Very high density video switching
• Computer graphics
• PCM / data routing
2 TO 4 DECODER
LOGIC
CHIP
SELECT
A0
A1
CS
GX4314
TRUTH TABLE
CS A1 A0
0
0
0
0
1
0
0
1
1
X
0
1
0
1
X
OUTPUT
IN 0
IN 1
IN 2
IN 3
HI - Z
ORDERING INFORMATION
Part Number
GX4314 - CDB
GX4314 - CKB
Package Type
14 pin PDIP
14 pin SOIC
Temperature Range
0 to 70 C
0 to 70
o
C
o
X = DON'T CARE
AVAILABLE PACKAGING
14 pin PDIP
14 pin SOIC
ELECTROSTATIC
SENSITIVE DEVICES
DO NOT OPEN PACKAGES OR HANDLE
EXCEPT AT A STATIC-FREE WORKSTATION
CAUTION
Document No. 13422 - 5
GENNUM CORPORATION P Box 489, Stn A, Burlington, Ontario, Canada L7R 3Y3 tel. (905) 632-2996 fax: (905) 632-2055
.O.
Japan Branch: B-201 Miyamae Village, 2-10-42 Miyamae, Suginami-ku, Tokyo 168, Japan
tel. (03) 3247-8838
fax (03) 3247-8839
GENNUM [ GENNUM CORPORATION ]
