Rainbow Electronics DS92LV222A - Manual

DS92LV222A
Two Channel Bus LVDS MUXed Repeater
General Description
The DS92LV222A is a repeater designed specifically for the
bridging of multiple backplanes in a rack. The DS92LV222A
utilizes low voltage differential signaling to deliver high speed
while consuming minimal power with reduced EMI. The
RSEL pin and DE pins allow maximum flexibility as to which
receiver/driver are used. The DS92LV222A repeats signals
between backplanes and accepts or drives signals onto the
local bus. It also features a flow through pin out which allows
easy PCB routing for short stubs between its pins and the
connector.
The driver is selectable between 3.5 mA (100 Ω load) and 8.5
mA (27 Ω load) output loop currents depending upon the
level applied to the ISEL pin. This allows for single termina-
tion (point-to-point) and also double termination (multipoint)
applications while maintain similar differential levels.
The receiver threshold is ± 100 mV, while providing ± 1V
common mode range.
Features
n Bus LVDS Signaling (BLVDS)
n Designed for Double Termination Applications
n Low power CMOS design
n High Signaling Rate Capability (above 100 Mbps)
n Ultra Low Power Dissipation (13.2 mW quiescent)
n Balanced Output Impedance
n Lite Bus Loading 5 pF typical
n Selectable Drive Capability (3.5 mA or 8.5 mA)
n 3.3V operation
n
± 1V Common Mode Range
n
± 100 mV Receiver Sensitivity
n Available in 16 pin SOIC package.
Connection Diagram
Block Diagram
TRI-STATE ® is a registered trademark of National Semiconductor Corporation.
DS100055-1
Order Number DS92LV222ATM
See NS Package Number M16A
DS100055-2
May 1998
DS92L
V222A
T
w
o
Channel
Bus
L
VDS
MUXed
Repeater
© 1998 National Semiconductor Corporation DS100055 www.national.com