AS1153/55/57/58
Single/Dual LVDS Receivers
Data Sheet
www.austriamicrosystems.com Revision 1.01 1 - 15
1 General Description
The AS1153/55/57/58 are Single/Dual flow-through
LVDS (low-voltage differential signaling) receivers which
accept LVDS differential inputs and convert them to
LVCMOS outputs. The receivers are perfect for low-
power low-noise applications requiring high signaling
rates and reduced EMI emissions.
The devices are guaranteed to receiv e data at speeds
up to 260Mbps (130MHz) over controlled impedance
media of approximately 100Ω. Supported transmission
media are PCB traces, backplanes, and cables.
The AS1155/58 are single LVDS receivers, and the
AS1153/57 are dual LVDS receivers.
The AS1157/58 features integrated parallel termination
resistors (nominally 107Ω), which eliminate the require-
ment for discrete termination resistors, and reduce stub
lengths. The AS1153/55 uses high imp edance inputs
and requires an external termination resistor when used
in a point-to-point connection.
The integrated Failsafe feature sets the output high if the
inputs are open, undriven and terminated, or undriven
and shorted.
All inputs conform to the ANSI TIA/EIA- 644 LVDS stan-
dards. Flow-through pino ut simplifies PC board layo ut
and reduces crosstalk by separating the LVDS inputs
and LVCMOS outputs.
The devices are available in a 8-pin SOIC package.
Figure 1. Block Diagrams
2 Key Features
! Flow-Through Pinout
! Guaranteed 260Mbps Data Rate
! 300ps Pulse Skew (Max)
! Conform to ANSI TIA/EIA-644 LVDS Standards
! Single +3.3V Supply
! Operating Temperature Range: -40 to +85 ºC
! Failsafe Circuit
! Integrated Termination (AS1157/58)
! 8-pin SOIC Package
3 Applications
Digital Copiers, Laser Printers, Cellular Phone Base S t a-
tions, Add/Drop Muxes, Digital Cross-Connects,
DSLAMs, Network Switches/Routers, Backplane Inter-
connect, Clock Distribution Computers, Intelligent Instru-
ments, Controllers, Critical Microprocessors and
Microcontrollers, Power Monitoring, and Portable/Bat-
tery-Powered Equipment.
AS1155/58
IN1-
IN1+
N/C
N/C
VCC
OUT1
N/C
GND
AS1153/57
IN1-
IN1+
IN2+
IN2-
VCC
OUT1
OUT2
GND