D-Tech Optoelectronics - D-Tech Optoelectronics

TO Type 1.25 Gbps APD Receiver Optical Subassembly

DESCRIPTION
This receiver optical subassembly (ROSA) is designed for fiber optic transmission system up to 1.25 Gb/s including Gigabit Ethernet, Fiber Channel and SDH/SONET etc. It consists of a high-performance InGaAs/InP APD and a low-noise transimpedance preamplifier. The chips are hermetically sealed in a 5-pin TO-46 package.

FEATURES

Data rate up to 1.25 Gb/s

High performance InGaAs/InP APD

High sensitivity

5-pin TO-46 with ball lens

APPLICATIONS

SDH/SONET

Gigabit Ethernet

Fiber Channel

Other long-haul transmission system up to 1.25 Gb/s

ABSOLUTE MAXIMUM RATINGS

Parameter	Symbol	Rating	Unit
Supply voltage	Vcc	-0.5 to 6	V
APD reverse voltage	Vr	0 to Vbr	V
APD reverse current	Ir	2	mA
Operating temperature	Tamb	-40 to +85	°C
Storage temperature	Tstg	-40 to +100	°C
Soldering temperature 2mm from the case for 10 seconds	Tsld	260	°C

ELECTRICAL and OPTICAL CHARACTERISTICS
(Tc=25ºC unless otherwise specified)

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
APD responsivity	R	0.8	0.9	-	A/W	λ = 1550nm, M=1
APD breakdown voltage	Vbr	35	45	55	V	Id=10μA
Temperature coefficient of Vbr	γ	-	0.09	-	V/°C	---
Optical sensitivity	-	–	-36.5	-35	dBm	λ=1550 nm 1.25 Gbps BER =10-10 PRBS 223-1 Ext. Ratio=13 dB V=Vop
Small signal bandwidth	fc	800	1000	-	MHz	---
Optical overload	-	-7	-	-	dBm	1.25 Gbps BER =10-10 PRBS 223-1 V=Vop
Equivalent input noise density	-	-	6.6		pA/Hz1/2	---
TIA transimpedance	Z	2260	2800	3400	Ω	Differential, measured with a 30 μAp-p input signal
Wavelength	λ	1270	-	1650	nm
Supply voltage	Vcc	3.0	3.3	5.5	V
Supply current	Icc		26	50	mA