AS1156/AS1154
Single/Dual LVDS Driver
Data Sheet
www.austriamicrosystems.com Revision 1.01 1 - 15
1 General Description
The AS1156/AS115 4 is a Single/Dual Flow-Through
LVDS (Low-Voltage Differential Signaling) Line Driver
which accepts and converts LVTTL/LVCMOS input lev-
els into LVDS output signals. The device is perfect for
low-power low-noise applicati ons requiring high signal-
ing rates and reduced EMI emissions.
The device is guaranteed to transmit data at speeds up
to 800Mbps (400MHz) over controlled impedance media
of approximately 100Ω. Su pported transmission media
are PCB traces, backplanes, and cables.
The AS1156 is a single LVDS transmitter, and the
AS1154 is a dual LVDS transmitter.
Outputs 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 LVTTL/LVC-
MOS inputs and LVDS outputs.
The AS1156/AS1154 operates from a single +3.3V sup-
ply and is specified for operation from -40 to +85°C.
Figure 1. Block Diagram
2 Key Features
Flow-Through Pinout
Guaranteed 800Mbps Data Rate
250ps Pulse Skew (Max)
Conforms to ANSI TIA/EIA-644 LVDS Standards
Single +3.3V Supply
Operating Temperatu re Range: -40 to +85°C
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.
AS1156
VCC
IN1
N/C
GND
OUT1-
OUT1+
N/C
N/C
AS1154
VCC
IN1
IN2
GND
OUT1-
OUT1+
OUT2+
OUT2-
Tx
Tx
Tx