鈩?/div>
6574 is a high performance analog multiplexer
optimized for professional grade video and other high fidelity
high bandwidth analog applications. The output amplifier
selects any one of four buffered input signals based on the
state of the two address bits. The LMH6574 provides a 400
MHz bandwidth at 2 V
PP
output signal levels. Multimedia and
high definition television (HDTV) applications can benefit
from the LMH6574鈥檚 0.1 dB bandwidth of 150 MHz and its
2200 V/碌s slew rate.
The LMH6574 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 LMH6574 gain is set by external feedback and gain set
resistors for maximum flexibility.
The LMH6574 is available in the 14 pin SOIC package.
Features
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500 MHz, 500 mV 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, 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
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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
14-Pin SOIC
Truth Table
A1
1
1
0
0
X
X
A0
1
0
1
0
X
X
EN
0
0
0
0
1
X
SD
0
0
0
0
0
1
OUT
CH 3
CH2
CH1
CH 0
Disable
Shutdown
20119705
Top View
Ordering Information
Package
14-Pin SOIC
Part Number
LMH6574MA
LMH6574MAX
Package Marking
LH6574MA
Transport Media
55 Units/Rail
2.5k Units Tape and Reel
NSC Drawing
M14A
LMH
鈩?/div>
is a trademark of National Semiconductor Corporation.
漏 2004 National Semiconductor Corporation
DS201197
www.national.com
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