MAX9173 Datasheet, PDF (1/14 Pages) Maxim Integrated Products – Quad LVDS Line Receiver with Flow-Through Pinout and “In-Path” Fail-Safe

19-2595; Rev 0; 10/02
Quad LVDS Line Receiver with Flow-Through
Pinout and “In-Path” Fail-Safe
General Description
The MAX9173 quad low-voltage differential signaling
(LVDS) line receiver is ideal for applications requiring
high data rates, low power, and low noise. The
MAX9173 is guaranteed to receive data at speeds up
to 500Mbps (250MHz) over controlled-impedance
media of approximately 100Ω. The transmission media
can be printed circuit (PC) board traces or cables.
The MAX9173 accepts four LVDS differential inputs and
translates them to LVCMOS/LVTTL outputs. The
MAX9173 inputs are high impedance and require an
external termination resistor when used in a point-to-
point connection.
The device supports a wide common-mode input range
of 0.05V to V_CC - 0.05V, allowing for ground potential
differences and common-mode noise between the dri-
ver and the receiver. A fail-safe feature sets the output
high when the inputs are open, or when the inputs are
undriven and shorted or undriven and parallel terminat-
ed. The EN and EN inputs control the high-impedance
outputs. The enables are common to all four receivers.
Inputs conform to the ANSI TIA/EIA-644 LVDS stan-
dard. The flow-through pinout simplifies board layout
and reduces crosstalk by separating the LVDS inputs
and LVCMOS/LVTTL outputs. The MAX9173 operates
from a single 3.3V supply, and is specified for opera-
tion from -40°C to +85°C. Refer to the MAX9121/
MAX9122 data sheet for lower jitter quad LVDS
receivers with parallel fail-safe. Refer to the MAX9123
data sheet for a quad LVDS line driver with flow-
through pinout.
The device is available in 16-pin TSSOP, SO, and
space-saving thin QFN packages.
Applications
Digital Copiers
Laser Printers
Cellular Phone Base Stations
Network Switches/Routers
Backplane Interconnect
Clock Distribution
LCD Displays
Telecom Switching Equipment
Features
o Accepts LVDS and LVPECL Inputs
o Fully Compatible with DS90LV048A
o Low 1.0mA (max) Disable Supply Current
o In-Path Fail-Safe Circuitry
o Flow-Through Pinout
Simplifies PC Board Layout
Reduces Crosstalk
o Guaranteed 500Mbps Data Rate
o 400ps Pulse Skew (max)
o Conforms to ANSI TIA/EIA-644 LVDS Standard
o High-Impedance LVDS Inputs when Powered-Off
o Available in Tiny 3mm x 3mm QFN Package
Ordering Information
PART
MAX9173EUE
MAX9173ESE
MAX9173ETE*
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
16 TSSOP
16 SO
16 Thin QFN-EP**
*Future product. Contact factory for availability.
**EP = Exposed pad.
Typical Operating Circuit
LVDS SIGNALS
MAX9123
MAX9173
Tx
100Ω
Rx
Tx
LVTTL/LVCMOS
DATA INPUTS
Tx
100Ω
Rx
LVTTL/LVCMOS
DATA OUTPUTS
100Ω
Rx
Tx
100Ω
Rx
Pin Configurations and Functional Diagram appear at end of
data sheet.
100Ω SHIELDED TWISTED CABLE OR MICROSTRIP BOARD TRACES
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.