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DS91C180

National Semiconductor
Part Number DS91C180
Manufacturer National Semiconductor
Description Multipoint LVDS (M-LVDS) Line Driver/Receiver
Published Jun 1, 2007
Detailed Description DS91D180/DS91C180 Multipoint LVDS (M-LVDS) Line Driver/Receiver June 2006 DS91D180/DS91C180 Multipoint LVDS (M-LVDS) L...
Datasheet PDF File DS91C180 PDF File

DS91C180
DS91C180

Overview
DS91D180/DS91C180 Multipoint LVDS (M-LVDS) Line Driver/Receiver June 2006 DS91D180/DS91C180 Multipoint LVDS (M-LVDS) Line Driver/Receiver General Description The DS91D180 and DS91C180 are high-speed differential M-LVDS single drivers/receivers designed for multipoint applications with multiple drivers or receivers.
Multipoint LVDS (M-LVDS) is a new bus interface standard (TIA/EIA-899) based on LVDS but including several enhancements to improve multipoint performance.
M-LVDS devices have superior drive capability and can support up to 32 loads.
Along with increased drive, M-LVDS devices are required to have a controlled edge rate to minimize reflections and EMI.
The 1 nSec minimum edge rate is tolerant of stub lengths up to 2 inches in length.
M-LVDS devices also have a very large common mode range for additional noise margin in heavily loaded and noisy backplane environments The DS91D180/DS91C180 driver input accepts LVTTL/ LVCMOS signals and converts them to differential M-LVDS signal levels.
The DS91D180/DS91C180 receiver accepts low voltage differential signals (LVDS, B-LVDS, M-LVDS, LV-PECL) and converts them to 3V LVCMOS signals.
The DS91D180 has a M-LVDS type 1 receiver input with no offset.
The DS91C180 receiver contains an M-LVDS ”type 2” failsafe circuit with an internal 100 mV offset that provides a LOW output for both short and open input conditions.
Features n n n n n n n n n n Meets TIA/EIA-899 M-LVDS Standard Capable of driving 32 M-LVDS loads Controlled edge rates tolerant to stubs Wide Common Mode for Increased Noise Immunity DS91D180 has type 1 receiver input DS91C180 has type 2 Fail-safe support Up to 200 Mbps operation Industrial temperature range Single 3.
3 V Supply 14L SOIC Package (JEDEC MS-012) Typical Application in AdvancedTCA Clock Distribution 20041930 © 2006 National Semiconductor Corporation DS200419 www.
national.
com DS91D180/DS91C180 Connection Diagram Logic Diagram 20041926 Top View Order Number DS91D180TMA, DS91C180TMA See...


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