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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 with Clock

Recovery

SRC48

The SRC48 modules are receivers with internal clock recovery designed

to meet or exceed the SONET/SDH optical interface requirements at OC-

48/STM-16 (2.488 Gb/s) data rate. Three performance versions are avail-

able which are fully compliant with Short Reach, Intermediate Reach

and Long Reach specifications at 1300 nm and 1550 nm wavelength.

The receiver for the Short Reach and Intermediate Reach version uses

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

diodes (APDs) are used to achieve high sensitivity. The Long Reach re-

ceiver features a low noise GaAs transimpedance IC with AGC capability

to provide an extremely wide dynamic range. A Phase Lock Loop (PLL)

circuit is included to perform the clock recovery function and resam-

pling of the data. Both DATA and CLOCK outputs are differential signals

designed to be AC-coupled into 50 ohm load. A TTL Signal Detect func-

tion which indicates loss of optical input and an analog Received Opti-

cal Power Monitor output ares 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

Intermediate Reach version and 0°C to +70°C for the Long Reach ver-

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

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

μm multimode fiber for Short Reach and Intermediate Reach versions).

The fiber pigtail is terminated with ST, FC or SC connector.

Product Description



Fully compliant with SONET/SDH OC-48/STM-16

(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



FC, ST, SC-connectorized fiber pigtails



Differential DATA & CLOCK interface



TTL SIGNAL DETECT output



Received Optical Power Monitor function



Single +5 V supply

Features

R3.2009.04.30