1FEATURES
2• DC to 100+ MHz / 200+ Mbps Low Power, Low
EMI Operation
• Optimal for ATCA, uTCA Clock Distribution
Networks
• Meets or Exceeds TIA/EIA-899 M-LVDS
Standard
• Wide Input Common Mode Voltage for
Increased Noise Immunity
• DS91D180 has Type 1 Receiver Input
• DS91C180 has Type 2 Receiver Input for Fail-
Safe Functionality
• Industrial Temperature Range
• Space Saving SOIC-14 Package (JEDEC MS-
012)

DESCRIPTION
The DS91D180 and DS91C180 are 100 MHz M-
LVDS (Multipoint Low Voltage Differential Signaling)
line driver/receiver pairs designed for applications
that utilize multipoint networks (e.g. clock distribution
in ATCA and uTCA based systems). M-LVDS is a
bus interface standard (TIA/EIA-899) optimized for
multidrop networks. Controlled edge rates, tight input
receiver thresholds and increased drive strength are
sone of the key enhancments that make M-LVDS
devices an ideal choice for distributing signals via
multipoint networks.
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, LVPECL
and CML) and converts them to 3V LVCMOS
signals. The DS91D180 device has a M-LVDS type 1
receiver input with no offset.The DS91C180 device
has a type 2 receiver input which enable failsafe
functionality.