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LMH6570 Datasheet

  • LMH6570

  • 2:1 High Speed Video Multiplexer

  • 828.44KB

  • 14頁

  • NSC

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LMH6570 2:1 High Speed Video Multiplexer
May 2005
LMH6570
2:1 High Speed Video Multiplexer
General Description
The LMH
鈩?/div>
6570 is a high performance analog multiplexer
optimized for professional grade video and other high fidelity
high bandwidth analog applications. The output amplifier
selects one of two buffered input signals based on the state
of the SEL pin. The LMH6570 provides a 400 MHz band-
width at 2 V
PP
output signal levels. Multimedia and high
definition television (HDTV) applications can benefit from the
LMH6570鈥檚 0.1 dB bandwidth of 150 MHz and its 2200 V/碌s
slew rate.
The LMH6570 supports composite video applications with its
0.02% and 0.05藲 differential gain and phase errors for NTSC
and PAL video signals while driving a single, back terminated
75鈩?load. An 80 mA linear output current is available for
driving multiple video load applications.
The LMH6570 gain is set by external feedback and gain set
resistors for maximum flexibility.
The LMH6570 is available in the 8 pin SOIC package.
Features
n
n
n
n
n
n
n
n
n
n
500 MHz, 500 mV
PP
, 鈭? dB bandwidth, A
V
=2
400 MHz, 2V
PP
, 鈭? dB bandwidth, A
V
=2
8 ns channel switching time
70 dB channel to channel isolation
@
10 MHz
0.02%, 0.05藲 diff. gain, diff. phase
0.1 dB gain flatness to 150 MHz
2200 V/碌s slew rate
Wide supply voltage range: 6V (
鹵
3V) to 12V (
鹵
6V)
鈭?8 dB HD2
@
5 MHz
鈭?4 dB HD3
@
5 MHz
Applications
n
n
n
n
n
n
Video router
Multi input video monitor
Instrumentation / Test equipment
Receiver IF diversity switch
Multi channel A/D driver
Picture in Picture video switch
Connection Diagram
8-Pin SOIC
20129905
Top View
Truth Table
SEL
1
0
X
SD
0
0
1
OUTPUT
IN1 * (1+RF/RG)
IN0 * (1+RF/RG)
Shutdown
LMH
鈩?/div>
is a trademark of National Semiconductor Corporation.
漏 2005 National Semiconductor Corporation
DS201299
www.national.com

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