EL4344C/EL4348C - Preliminary
600MHz Multiplexing Amplifiers
Features
General Description
• 4:1 Mux
• Triple channels
• ±5V operation
The EL4344C and EL4348C are 600MHz bandwidth multiplexing
amplifiers designed primarily for input video switching. The
EL4344C and EL4348C contain 4:1 multiplexing amplifiers.
• Gain of 1 (EL4344C)
• Gain of 2 (EL4348C)
• 600MHz bandwidth
• Supply current of 11mA/channel
The EN pin can be used to tri-state the MUX output, enabling parts to
be paralleded for a greater number of inputs. All logic inputs are refer-
enced to the GND pin.
The EL4344C has a gain of 1 and the EL4348C has a gain of 2.
The EL4344C and the EL4348C are available in a 28-pin QSOP pack-
age and are specified for operation over the full ---40°C to +85°C
temperature range.
Applications
• HDTV/DTV Analog Inputs
• Video Projectors
• Computer Monitors
• Set Top Boxes
• Security Video
• Broadcast Video Equipment
Connection Diagram
1
2
3
4
5
6
7
8
9
S0
IN3A 28
GND 27
IN2A 26
GND 25
IN1A 24
VS+ 23
Ordering Information
Part No.
EL4344CU
EL4348CU
Package
Tape & Reel
Outline #
MDP0040
MDP0040
IN4A
S1
28-Pin QSOP
28-Pin QSOP
IN1B
GND
IN2B
VS+
IN3B
VS-
OUTA 22
OUTB 21
OUTC 20
VS- 19
10 IN4B
11 GND
12 IN1C
13 EN
IN4C 18
GND 17
IN3C 16
GND 15
14 IN2C
EL4344C & EL4348C
(28-Pin QSOP)
Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a “controlled document”. Current revisions, if any, to these
specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.
© 2001 Elantec Semiconductor, Inc.
ELANTEC [ ELANTEC SEMICONDUCTOR ]
