Description
The module consists of an APD photodetector, a low noise preamplifier,
a connectorized single-mode fiber pigtail (for coupling light into the
photodetector), an SMP electrical output connector, and an hermetic
metal package. Optimized for use in 10 Gb/s Metro applications using
NRZ Modulation with or without FEC.
Features
High Sensitivity
Low Capacitance high speed InGaAs
APD detector
High Performance preamplifier chip
Single polarity power supply
Hermetically sealed
Bellcore GR468-CORE Controlled
Environment compliant
Single mode fiber tail
MSA Compliant
Optical Components
Preliminary Datasheet
AT10G 10 Gb/s APD Preamp Receiver
Preliminary Datasheet
2Publication # 84103.02/03-02 Issue 2 Dated 03/15/02
Performance Symbol Min Nom Max Unit
Optical Sensitivity 223 -1 BER< 10-10 (4), m=10 Sens -26.5 -25 dBm
High frequency -3dB corner (2), m=10 F3dB 7.5 8.1 GHz
Deviation from linear phase (d.c-6GHz) -10 +10 deg
Return loss S22 (400KHz to 12GHz) -12 -5 dB
Optical overload 223 -1 BER< 10-10 Psat -3 -1 dBm
APD breakdown voltage temp coefficient Tvbr .050 0.056 .061 V/°C
APD breakdown voltage Vbr 25 40 V
Amplifier bias voltage (Positive) Vcc 7.6 8 8.4 V
Dark current at 90% of Vbr ld 100 nA
Current consumption lcc 110 120 mA
Transimpendance gain (2,3) TZG 400 500 650 Ohms
Characteristics
TC = 25 °C unless otherwise specified.
1) Optical wavelength is in the 1300nm region and between 1525 - 1575nm
2) Load impedance is 50Ω(AC coupled) with a return loss > 20dB, up to 20GHz.
3) Excludes APD responsivity.
4) Measured with 10 Gb/s NRZ PRBS data and no FEC.
Parameter Symbol Min Max Unit
Amplifier bias voltage Vcc -0.5 8.5 V
Operating temperature (1) Top 0 70 °C
Storage temperature (2) Tstg -40 85 °C
Maximum Transient Optical Input Power Ppo 10 dBm
APD bias voltage Vbr 40 V
Fiber bend radius 35 mm
Absolute Maximum Ratings
Class 1 ESD precautions must be observed when handling these devices
1) The operating temperature is defined as the temperature of the module case.
2) The rating is referred to ambient temperature.
3) The optical level that causes no damage to the module. However, the electrical and optical performance
specified in this document may not be guaranteed.
4) The receiver may be damaged if not powered up and powered down in the correct order. When powering
up the device, turn on APD bias (Vapd) first, then positive supply (Vcc). Power down in reverse order.
5) Vbr of individual device at given operating temperature is not to be exceeded.
Pin # Function
1 Vapd (+ve)
2 Case ground
3 Vcc (+ve)
4 Case Ground
5 Case Ground
6 Case Ground
7 Case Ground
8 Thermistor
NTC thermistor R25 °C = 10K Ω+/- 3%
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© 2002 Nortel Networks. All rights reserved.
© Nortel, Nortel Networks, the Nortel Networks corporate logo, and the globemark design are trade-marks of Nortel Networks Corporation.
Any third-party trademarks are the property of their respective owners.
Preliminary information documents contain information on products in their formative or design phase of development. Features, characteristic
data and other specifications are subject to change without notice. Contact Nortel Networks for current information on this product.
The information contained in this document is considered to be accurate as of the date of publication. No liability is assumed by Nortel
Networks for use of any information contained in this document, or for infringement of any patent rights or any other proprietary rights of
third parties that may result from such use. No license is granted by implication or otherwise under any patent right or any other proprietary
right of Nortel Networks.
Publication # 84103.02/03-02 Issue 2 Dated 03/15/02
Preliminary Datasheet
Nortel Networks
Optical Components
185 Corkstown Road
Ottawa, Ontario
Canada K2H 8V4
For more information, please contact your
local Nortel Networks representative.
Tel: 800.4.NORTEL/800.466.7835
or outside North America 506.674.5471
Email:
sales-opticalcomponents@nortelnetworks.com
Circuit Schematic and Dimensions
500 Ω
10 nF
InF
Vpd
100 nF
1 Ω
InF
Vcc
to
Rth
(10kΩ @ 25C)
RF out
Figure 1: Schematic Diagram Figure 2: Typical eye diagram measured at 10 Gb/s PRBS NRZ data.
Figure 3: Outline Diagram
