Product Description
P r o d u c t B u l l e t i n
ERM 537/547
2.5 Gb/s SONET/SDH
Mini-DIL
Optical Receiver Module
Key Features
?InGaAs PIN or Avalanche Photodiode with
Transimpedance Amplifier
?High sensitivity:
-24 dBm typical for PIN
-32 dBm typical for APD
?Single-ended or differential output configurations
?Small form factor
Preliminary Specifications
Conditions (unless noted):
Temperature = 25°C, λ = 1550 nm, RL = 50Ω
All specifications without connector.
Parameter Measurement Min Typ Max Units
Conditions
Responsivity
APD Vb-1.5V 8.5 A/W
PIN 5V 0.85 A/W
Dark Current
APD 10 40 nA
PIN 0.5 2.0 nA
Transimpedance 3000 4500 Ω
Sensitivity
APD BER = 1*10-10
M = 10 -30 -32 dBm
PIN BER = 1*10-10 -22 -24 dBm
3 dB Bandwidth 1.8 GHz
Maximum Output 400 500 600 mV
Voltage
Low Frequency 30 kHz
Cutoff
Output Return f = 50 MHz to 10 15 dB
Loss 1.8 GHz
Optical Back -40 -30 dB
Reflection
Overload
APD BER = 1*10-10
M = 3 -7 -3 dBm
PIN BER = 1*10-10 -2 0 dBm
ERM 537/547 series are small form factor
2.5 Gb/s SONET/SDH optical receivers with an
InGaAs PIN photodiode or avalanche photodiode
and a high bandwidth linear transimpedance
amplifier. They are available with single-ended or
differential outputs. The differential outputs can be
used for added gain or for signal monitoring.
We provide an identical pinout for short haul
(ERM 537) and long haul (ERM 547) receivers. The
same pinout and package allows system designers
to implement a single board design. The receivers
are available in an 8-pin mini-DIL package with
8.7/125 μm single mode fiber with 900 μm tight
jacket. The receivers are also available with industry
standard connectors, such as FC, SC and LC.
Applications
?High sensitivity, short or long haul digital
receivers
?SONET/SDH receivers
?Digital receivers in transponders
JDS Uniphase Corporation Tel 609 538-1800
EPITAXX Division Fax 609 538-1684
7 Graphics Drive epitaxx@us.jdsuniphase.com
West Trenton, NJ 08628 www.jdsuniphase.com
This is a preliminary product. All information contained herein is proprietary and confidential, believed to be
accurate and is subject to change without notice. No responsibility is assumed for its use. JDS Uniphase
Corporation, its subsidiaries and affiliates, or manufacturer, reserve the right to make changes, without notice,
to product design, product components, and product manufacturing methods. Some specific combinations
of options may not be available. Please contact JDS Uniphase for more information. ©JDS Uniphase
Corporation. All rights reserved. Preliminary 10/16/00 Printed in USA
1.25 ?0.25 METERS 11.22
24.0
7.62
8 7 6 5
1 2 3 4
4.8 2.54 Typ.
1.85
ø3.8
6.770
?0.075
8.00
?1.00
22.7
2.67
4.94
BUTTERFLY
(End View)
9.80
?0.20
0.52 ?0.25
0.80 ?0.20
5??3?SURFACE MOUNT
(End View)
0.30 ?0.05
4.50
Min.
8.30
?0.20
THROUGH-HOLE
(End View)
Maximum Ratings
Parameter Min Typ Max Units
Power Supply -0.5 4.0 V
PD Bias Voltage 25 V
Optical Input Power
APD 0 dBm
PIN 5 dBm
Operating Case Temperature -20 85 °C
Storage Temperature -40 85 °C
ERM 537/547 SONET/SDH 2.5 Gb/s Mini-DIL | 2
Optical Receiver Module
DC Operating Parameters
Parameter Min Typ Max Units
APD Breakdown Voltage +35 +70 V
PD Bias Voltage +4.75 +5.0 +25 V
Supply Voltage +3.15 +3.3 +3.45 V
Supply Current 40 60 mA
Quality Vision
We have a leadership position in the optoelectronic industry with a
vision for excellence in quality. The company is committed to
providing customers with the highest levels of quality and reliability
in design and manufacturing. The top priorities remain continuous
process improvement and total customer satisfaction. We obtained
ISO 9001 certification in 1996. In addition, the company maintains a
strict quality control program to ensure that all products meet or
surpass customer requirements.
Precautions for Use
ESD protection is imperative. Use of grounding straps,
anti-static mats, and other standard ESD protective
equipment is required when handling or testing an
InGaAs PIN or any other junction photodiode.
Soldering temperature of the leads should not exceed
260 oC for more than 10 seconds.
Fiber feed through tube temperature should not exceed
120 oC.
Fiber pigtails should be handled with less than 10 N pull
and with a bending radius greater than 1?
All dimensions in mm (nominal)
Mechanical Dimensions
Ordering Information
Product Model Description
ERM 537 2.5 Gb/s SONET/SDH, Mini-DIL,
Short Haul, PIN Photodiode Receiver
900 μm buffer without connector
ERM 547 2.5 Gb/s SONET/SDH, Mini-DIL,
Long Haul, APD Receiver
900 μm buffer without connector
ERM 5x7 FC/SPC 900 μm buffer with FC/SPC connector
ERM 5x7 SC/SPC 900 μm buffer with SC/SPC connector
ERM 5x7 LC/SPC 900 μm buffer with LC/SPC connector
Pin Connections
PIN Single-ended Differential
Output Output
1 Vpd (cathode) Vpd (cathode)
2 GND GND
3 GND Output (+)
4 Output GND
5 GND GND
6 GND Output (-)
7 Vee (+) GND
8 GND Vcc (+)
Note:
1. Pin #5 can be used as an option of thermistor
output for APD receiver.
2. Output (+): Light “on?= Logic “high?Output (-): Light “off?= Logic “low?/textarea>
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