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EL4332CS Schematic ( PDF Datasheet ) - Elantec Semiconductor

Teilenummer EL4332CS
Beschreibung Triple 2:1 300 MHz Mux-Amp AV =2
Hersteller Elantec Semiconductor
Logo Elantec Semiconductor Logo 




Gesamt 17 Seiten
EL4332CS Datasheet, Funktion
EL4332C
Triple 2:1 300 MHz Mux-Amp AV =2
Features
• 3 ns A-B switching
• 300 MHz bandwidth
• Fixed gain of 2, for cable driving
• > 650V/µs slew rate
• TTL/CMOS compatible switch
Applications
• RGB multiplexing
• Picture-in-picture
• Cable driving
• HDTV processing
• Switched gain amplifiers
• ADC input multiplexer
Ordering Information
Part No.
EL4332CS
Temp. Range
-40°C to 85°C
Package
SO16
Outline #
MDP0027
General Description
The EL4332C is a triple very high speed 2:1 Multiplexer-Amplifier. It
is intended primarily for component video multiplexing and is espe-
cially suited for pixel switching. The amplifiers have their gain set to 2
internally, which reduces the need for many external components. The
gain-of-2 facilitates driving back terminated cables. All three amplifi-
ers are switched simultaneously from their A to B inputs by the
TTL/CMOS compatible, common A/B control pin.
A -3 dB bandwidth of 300 MHz together with 3 ns multiplexing time
enable the full performance of the fastest component video systems to
be realized.
The EL4332C runs from standard ±5V supplies, and is available in the
narrow 16-pin small outline package.
Connection Diagrams
Demo Board
A demo PCB is available for this prod-
uct. Request “EL4332/1 Demo Board.”
© 1995 Elantec, Inc.






EL4332CS Datasheet, Funktion
EL4332C
Triple 2:1 300 MHz Mux-Amp AV =2
Switching Glitch
(Inputs at Ground)
Switching from a Family of DC
Levels to Ground
Switching from Ground to a
Family of DC Levels
Gain vs Frequency
Channel A/B Switching Delay
Gain vs Frequency
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EL4332CS pdf, datenblatt
EL4332C
Triple 2:1 300 MHz Mux-Amp AV =2
A Bandwidth Selectable Circuit
In Figure 5, a circuit is shown that allows three signals
to be either low pass filtered or full bandwidth.
This could be useful where an input signal is frequently
noisy. The component values shown
give a Butterworth LPF response, with a -3 dB fre-
quency of 50 MHz. Note again, the resistor values are
low, so that stray capacitance does not affect the desired
cut-off frequency.
Figure 5. Switched 50 MHz Low Pass Filter for High/Low Resolution Monitors
12

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