MC10SX1125 Datasheet, PDF (1/5 Pages) ON Semiconductor – FIBER OPTIC POST AMPLIFIER

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
622Mb/s Fiber Optic Post
Amplifier
The SX1125 is an integrated limiting amplifier for high frequency fiber
optic applications. The device interfaces directly to the trans–impedance
amplifier of a typical optical to electrical conversion portion of a fiber optic
link. With data rate capabilities in the 622Mb/s range, the high gain
limiting amplification of the SX1125 is ideal for high speed fiber optic
applications like SONET/SDM, ATM, FDDI, Fibre Channel or Serial Hippi.
The device is functionally and pin compatible to the Signetics SA5225
with a significantly higher bandwidth. The CAZP and CAZN inputs to the
limiting amplifier provide an auto-zero function to effectively cancel any
input offset voltage present in the amplifier.
The SX1125 incorporates a programmable level detect function to
identify when the input signal has been lost. This information can be fed
back to the Disable input of the device to maintain stability under loss of
signal conditions. Using the Vset pin the sensitivity of the level detect can
be adjusted. The CLD input is used to filter the level detect input so that
random noise spikes are filtered out.
The MC10SX1125 is compatible with MECL10H logic levels.
• Wideband Operation: 20kHz to 550MHz
• Programmable Input Signal Level Detection
• Operation with single +5V or standard ECL supply
• Standard 16-lead SOIC Package
• Fully Differential Design to Minimize Noise Affects
• 10KH Compatible
BLOCK DIAGRAM
CAZP CAZN
MC10SX1125
FIBER OPTIC
POST AMPLIFIER
D SUFFIX
PLASTIC SOIC PACKAGE
CASE 751B-05
Din
Limiting
Amplifier
Din
Vref
Reference
Vset
ECL
Dout
Buffer
Dout
Disable
Disable
LOS
Level
ECL
Detect
Buffer
LOS
Vset Vref VCCE Dout Dout GNDE LOS LOS
16 15 14 13 12 11 10 9
Pinout: 16-Lead Plastic Package
(Top View)
12345678
CAZN CAZP GNDA Din Din VCCA CLD Disable
CLD
5/96
© Motorola, Inc. 1996
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