LMH6574 Datasheet, PDF (1/27 Pages) National Semiconductor (TI) – 4:1 High Speed Video Multiplexer

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LMH6574
SNCS103D – NOVEMBER 2004 – REVISED DECEMBER 2014
LMH6574 4:1 High Speed Video Multiplexer
1 Features
•1 500 MHz, 500 mV −3 dB Bandwidth, A_V = 2
• 400 MHz, 2 V_PP −3 dB Bandwidth, A_V = 2
• 8 ns Channel Switching Time
• 70 dB Channel to Channel Isolation at 10 MHz
• 0.02%, 0.05° Diff. Gain, Phase
• 0.1 dB Gain Flatness to 150 MHz
• 2200 V/μs Slew Rate
• Wide Supply Voltage Range: 6 V (±3 V) to 12 V
(±6 V)
• −68 dB HD2 at 5 MHz
• −84 dB HD3 at 5 MHz
2 Applications
• Video Router
• Multi Input Video Monitor
• Instrumentation / Test Equipment
• Receiver IF Diversity Switch
• Multi Channel A/D Driver
• Picture in Picture Video Switch
3 Description
The LMH6574 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 0.1 dB bandwidth of 150
MHz and its 2200 V/μs slew rate.
The LMH6574 supports composite video applications
with its 0.02% and 0.05° differential gain and phase
errors for NTSC and PAL video signals while driving
a single, back terminated 75-Ω 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.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LMH6574
SOIC (14)
8.65 mm × 3.91 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Frequency Response vs. V_OUT
1
0
-1
V_OUT = 0.5 V_PP
-2
-3
V_OUT = 1 V_PP
-4
V_OUT = 2 V_PP
-5
-6
V_OUT = 4 V_PP
-7
-8 ^{VS = ±5V}
A_V = 2V/V
-9
10
100
FREQUENCY (MHz)
1000
Frequency Response vs. Gain
1
0
-1 _{AV = 1, RF = 1.5 k:}
-2
-3
A_V = 2, R_F = 575:
-4
A_V = 6, R_F = 300:
-5
-6
A_V = 10, R_F = 180:
-7
V_S = ±5V
-8
V_OUT = 2 V_PP
-9
10
100
FREQUENCY (MHz)
1000
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.