Low-Jitter / Low-Noise LVDS Repeater in an SC70 Package
|Total Page||9 Pages|
|Features||Datasheet pdf 19-2213; Rev 0; 10/01 Low-Jitter, Low-N oise LVDS Repeater in an SC70 Package G eneral Description The MAX9155 is a low -voltage differential signaling (LVDS) repeater, which accepts a single LVDS i nput and duplicates the signal at a sin gle LVDS output. Its low-jitter, low-no ise performance makes it ideal for buff ering LVDS signals sent over long dista nces or noisy environments, such as cab les and backplanes. The MAX9155’s tin y size makes it especially suitable for minimizing stub lengths in multidrop b ackplane applications. The SC70 package (half the size of a SOT23) allows the MAX9155 to be placed close to the conne ctor, thereby minimizing stub lengths a nd reflections on the bus. The point-t.|
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19-2213; Rev 0; 10/01
Low-Jitter, Low-Noise LVDS
Repeater in an SC70 Package
The MAX9155 is a 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 distances or
noisy environments, such as cables and backplanes.
The MAX9155’s 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 MAX9155 to be placed close to the connec-
tor, thereby minimizing stub lengths and reflections on
the bus. The point-to-point connection between the
MAX9155 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, 23psp-p added deterministic jitter and
0.6psRMS 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
MAX9155’s switching performance guarantees a
200Mbps data rate, but minimizes radiated noise by
guaranteeing 0.5ns minimum output transition time.
The MAX9155 has fail-safe circuitry that sets the output
high for undriven open, short, or terminated inputs.
The MAX9155 operates from a single +3.3V supply and
consumes only 10mA over a -40°C to +85°C tempera-
ture range. Refer to the MAX9129 data sheet for a quad
bus LVDS driver, and to the MAX9156 data sheet for a
low-jitter, low-noise LVPECL-to-LVDS level translator in
an SC70 package.
o Tiny SC70 Package
o Ultra-Low Jitter
23psp-p Added Deterministic Jitter
0.6psRMS Added Random Jitter
o 0.5ns (min) Transition Time Minimizes Radiated
o 200Mbps 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
-40°C to +85°C
Cellular Phone Base Stations
Typical Operating Circuit appears at end of data sheet.
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