19-2376; Rev 0; 4/02
400Mbps, Low-Jitter, Low-Noise LVDS
Repeater in an SC70 Package
General Description
The MAX9180 is a 400Mbps, low-voltage differential
signaling (LVDS) repeater, which accepts a single
LVDS input and duplicates the signal at a single LVDS
output. Its low-jitter, low-noise performance makes it
ideal for buffering LVDS signals sent over long dis-
tances or noisy environments, such as cables and
backplanes.
The MAX9180鈥檚 tiny size makes it especially suitable for
minimizing stub lengths in multidrop backplane appli-
cations. The SC70 package (half the size of a SOT23)
allows the MAX9180 to be placed close to the connec-
tor, thereby minimizing stub lengths and reflections on
the bus. The point-to-point connection between the
MAX9180 output and the destination IC, such as an
FPGA or ASIC, allows the destination IC to be located
at greater distances from the bus connector.
Ultra-low, 23ps
P-P
added deterministic jitter and
0.6ps
RMS
added random jitter ensure reliable commu-
nication in high-speed links that are highly sensitive to
timing errors, especially those incorporating clock-and-
data recovery, PLLs, serializers, or deserializers. The
MAX9180鈥檚 switching performance guarantees a
400Mbps data rate, but minimizes radiated noise by
guaranteeing 0.5ns minimum output transition time.
The MAX9180 has fail-safe circuitry that sets the output
high for undriven open, short, or terminated inputs.
The MAX9180 operates from a single 3.3V supply and
consumes only 10mA over a -40擄C to +85擄C tempera-
ture range. Refer to the MAX9129 data sheet for a quad
bus LVDS (BLVDS) driver, and to the MAX9181 data
sheet for a low-jitter, low-noise 400Mbps LVPECL-to-
LVDS level translator in an SC70 package.
o
Tiny SC70 Package
o
Ultra-Low Jitter
23ps
P-P
Added Deterministic Jitter
(2
23
- 1 PRBS)
0.6ps
RMS
Added Random Jitter
o
0.5ns (min) Transition Time Minimizes Radiated
Noise
o
400Mbps Guaranteed Data Rate
o
Fail-Safe Circuit Sets Output High for Undriven
Inputs (Open, Terminated, or Shorted)
o
Low 10mA Supply Current
o
Low 6mA Supply Current in Fail-Safe
o
Conforms to ANSI/EIA/TIA-644 LVDS Standard
o
High-Impedance Inputs and Outputs in
Power-Down Mode
Features
MAX9180
Ordering Information
PART
MAX9180EXT-T
TEMP RANGE
-40擄C to +85擄C
PIN-
PACKAGE
6 SC70-6
TOP
MARK
ABC
Applications
Cellular Phone Base Stations
DSLAMs
Digital Cross-Connects
Add/Drop Muxes
Network Switches/Routers
Multidrop Buses
Cable Repeaters
Typical Operating Circuit appears at end of data sheet.
IN- 3
OUT- 1
Pin Configuration
TOP VIEW
MAX9180
6
OUT+
GND 2
5
V
CC
4
IN+
SC70
________________________________________________________________
Maxim Integrated Products
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For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.
Maxim
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