InGaAs-APD/Preamp
Receiver
FEATURES
鈥?2.5Gb/s APD Receiver module in industry standard
mini-DIL package
鈥?-34 dBm Sensitivity (Typ.)
鈥?-4 dBm Overload (Typ.)
鈥?Integral Thermistor
鈥?Integral GaAs IC Preamp
鈥?Differential Electrical Output
FRM5W231BS
APPLICATIONS
This 40 GHz gain bandwidth product APD detector preamp is intended to
function as an optical receiver in long haul SONET, SDH, and DWDM
systems operating at 2.5 Gb/s. The device operates in both the 1,310 and
1,550nm wavelength windows. The nominal 10K鈩?integral thermistor allows
accurate monitoring of the APD temperature and facilitates the design of the
APD bias control circuits. The detector preamplifier is DC coupled with a
differential electrical output.
DESCRIPTION
The FRM5W231BS incorporates a 30 micron InGaAs Avalanche Photodiode (APD)
detector, a GaAs IC transimpedance preamplifier, and a thermistor in a mini-dil type
package. The APD is processed with modern MOVPE techniques resulting in reliable
performance over a wide range of operating conditions. The lens coupling system
and the single mode fiber are assembled using Nd: YAG welding techniques.
ABSOLUTE MAXIMUM RATINGS (Tc=25擄C, unless otherwise specified)
Parameter
Storage Temperature
Operating Case Temperature
Supply Voltage
APD Reverse Voltage
APD Reverse Current
Symbol
Tstg
Top
VDD
VR
IR(Peak)
Ratings
-40 to +85
-40 to +85
0 to +6.5
0 to VB
2
Unit
擄C
擄C
V
V
mA
Edition 1.1
June 2002
1