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Parameter

Symbol

Minimum

Maximum

Units

Storage Temperature

T

ST

- 40

+ 85

°C

Operating Case Temperature

“I” option (“SR” & “IR” only)

T

OP

- 40

+ 85

°C

“H” option

0

+ 70

Maximum Optical Input Power (“LR” only)

P

in, max

-

- 5.0

dBm

Supply Voltage

V

CC

0

+ 6.0

V

Input Voltage

V

IN

0

V

CC

V

Lead Soldering Temperature & Time

-

-

260°C, 10 sec

Absolute Maximum Ratings

OC-48/STM-16 Receiver without Clock

Recovery

SRX48 Seris

The SRX48 modules are receivers designed to meet or exceed the SO-

NET/SDH optical interface requirements at OC-48/STM-16 (2.488 Gb/s)

data rate. Three performance versions are available which are fully com-

pliant with Short Reach, Intermediate Reach and Long Reach specifica-

tions at 1300 nm or 1550 nm wavelength.

The receiver for the Short Reach and Intermediate Reach version uses

PIN photodiodes. For the Long Reach version, InGaAs avalanche pho-

todiodes (APDs) are used to achieve high sensitivity. The Long Reach

receiver features a low noise GaAs transimpedance IC with AGC capa-

bility to provide an extremely wide dynamic range. The DATA outputs

are differential signals designed to be AC-coupled into 50 ohm load. A

TTL Signal Detect function which indicates loss of optical input and an

analog Received Optical Power Monitor output are also provided.

All receiver modules can be operated with a single +5V supply. The op-

erating temperature range is -40°C to +85°C for the Short Reach and In-

termediate Reach version and 0°C to +70°C for the Long Reach version.

All receivers are housed in a 24-pin dual-in-line metal package with a

fiber pigtail (single mode fiber for Long Reach version and 50/125 μm

multimode fiber for Short Reach and Intermediate Reach versions),

which is terminated with MU, LC, ST, FC or SC connector.

Product Description



Fully compliant with SONET/SDH OC-48 (2.5

Gb/s) specifications



Long Reach 1310 nm & 1550 nm as well as

Intermediate Reach and Short Reach



Internal temperature-compensated High

Voltage APD Supply (Long Reach version)



-40°C to +85°C Operating Temperature

(Intermediate Reach and Short Reach)



24-pin DIP metal package



MU, LC, FC, ST, SC-connectorized fiber pigtails



Differential DATA interface



Received Optical Power Monitor function



TTL SIGNAL DETECT output



Single +5 V supply

Features

R5.2008.04.30