National LMH6583 Data Sheet
Summary
The LMH6583 is a high-performance 16x8 analog crosspoint switch designed for demanding video applications. This comprehensive documentation provides detailed specifications, including electrical characteristics, non-blocking performance up to 550 MHz, and robust crosstalk suppression data. It is essential for engineers designing professional broadcast, medical imaging, surveillance, or conference room multimedia systems that require reliable, high-speed signal switching.
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LMH6583 16x8 550 MHz Analog Crosspoint Switch, Gain of 2 General Description Features
The LMH® family of products is joined by the LMH6583, a high 16 inputs and 8 outputs
speed, non-blocking, analog, crosspoint switch. The 64-pin exposed pad TQFP package LMH6583 is designed for high speed, DC coupled, analog −3 d B bandwidth (VOUT = 2 VPP, RL = 1 kΩ) 550 MHz signals like high resolution video (UXGA and higher). The
−3 d B bandwidth (VOUT = 2 VPP,RL = 150Ω) 450 MHz
LMH6583 has 16 inputs and 8 outputs. The non-blocking ar-
Fast slew rate 2200 V/μs
chitecture allows an output to be connected to any input,
Channel to channel crosstalk (10/ 100 MHz)−70/ −52 d Bc
including an input that is already selected. With fully buffered
All Hostile Crosstalk (10/ 100 MHz) −55/−45 d Bc
inputs the LMH6583 can be impedance matched to nearly any
Easy to use serial programming 4 wire bus
source impedance. The buffered outputs of the LMH6583 can
Two programming modes
drive up to two back terminated video loads (75Ω load). The Serial & addressed modes
outputs and inputs also feature high impedance inactive Symmetrical pinout facilitates expansion.
states allowing high performance input and output expansion Output current ±60 m A for array sizes such as 16 x 16 or 32 x 8 by combining two Two gain options AV = 1 or AV = 2 devices. The LMH6583 is controlled with a 4 pin serial inter- face. Both single serial mode and addressed chain modes are
Applications
available.
Studio monitoring/production video systems
The LMH6583 comes in a 64-pin thermally enhanced TQFP
package. It also has diagonally symmetrical pin assignments Conference room multimedia video systems
to facilitate double sided board layouts and easy pin connec- KVM (keyboard video mouse) systems tions for expansion.
Security/surveillance systems Multi antenna diversity radio Video test equipment Medical imaging Wide-band routers & switches
Connection Diagram Block Diagram
LMH® is a registered trademark of National Semiconductor Corporation. TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 2007 National Semiconductor Corporation www.national.com
Page Summary Contents For National LMH6583 Data Sheet
Manual Details
| Brand | National |
|---|---|
| Pages | 18 |
| File Size | 398.25 KB |
| Published | July 15, 2026 |
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Frequently Asked Questions
What is the -3 dB bandwidth for high-resolution video signals?
For stereo/video applications (UXGA and higher), the device features a bandwith of up to 550 MHz.
How do I program and control this crosspoint switch?
It is controlled by a 4 pin serial interface, supporting both single serial mode and addressed chain modes.
Does the pinout facilitate PCB design for expansion?
Yes, it has diagonally symmetrical pin assignments, which helps with double-sided board layouts and easy connections.