Data Sheet
1
The AT3SGCC is an optical receiver offering optimum
sensitivity and overload performance for OC-48 optical
transport systems. The hermetic packaged fiber pigtailed
receiver contains an avalanche photodiode, an AGC low noise
pre-amp and a precision thermistor.
The RF coplanar data outputs from the package provide
differential noise rejection for improved sensitivity. The product
has been optimized for use in metro applications, either as a
discrete device or within a transceiver, using NRZ modulation,
with or without FEC, at data rates up to 2.7Gb/s.
The combination of a high performance avalanche
photodiode, (APD), low noise AGC pre-amp and RF coplanar
package provides unmatched performance for maximising
transmission distance. The AGC low noise pre-amp is well
suited to dynamic threshold level decision circuitry often used
to maximise overall receiver chain performance.
Features:
• High sensitivity, -35.0dBm typical
•Wide dynamic range performance to -3dBm
•MSA coplanar receiver package
•Differential data outputs
•+3.3V operation
• RoHS 5/6 compliant
Applications:
•OC-48 DWDM optical transport systems
•OC-48 DWDM metroand long haul systems
•STM-16 SDH or OC-48 SONET systems
2.5Gb/s High Sensitivity coplanar APD
preamp receiver
AT3SGCC
Data Sheet
2
Characteristics
Parameter Symbol Measurement Min Typ Max Unit
Conditions
APD breakdown voltage Vbr -5°Cto 70°C 40 65 V
APD temperatureTvbr -5°C to 70°C 0.09 0.1 0.12 V/°C
coefficient of
breakdown voltage
Transimpedance gain Zt -5°C to 70°C 2.3 3.6 4.7 kΩ
Bandwidth[1] s21 M=10, small signal 1.8 2.2 3.0 GHz
Lower cut-off frequency[1] s21 cut-off M = 10, small signal 50 kHz
APD sensitivity Sens. 2.5Gb/s, 223-1 PRBS @
25°C. M=optimal
ER = 10dB, BER=1x10-10 -35.0 -33.5 dBm
APD overload Psat 2.5Gb/s, 223-1 PRBS @
25°C. M=3, ER = 10dB
BER=1x10-10 -3 dBm
Output voltage swing Vout Differential 18 300 mV pk-pk
Optical return loss ORL 30 dB
Power supply current Icc 44 65 mA
Power supply voltage Vcc 3.0 3.3 3.6 V
Output return loss s22 DC – 3.0 GHz 10 dB
Thermistor resistance RTH 9.5 10.5 kΩ
On all parameters listed below case temperature = 25°C unless
otherwise stated.
Operating temperature -5°C to +70°C.
Optical wavelength between 1525-1575nm. Data 1575nm to
1610nm available on request.
(Operating temperature range of -20°C to +85°C is optional -
details available upon request).
Notes:
[1] Load impedance is 50ΩAC-coupled.
Data Sheet
3
Absolute Maximum Ratings
Parameter Symbol Min Max `Unit
Operating case temperature Top -40 +85 °C
Storage temperature Tstg -40 +85 °C
Optical input power +3 dBm
Power supply voltage -0.5 3.6 V
APD supply voltage[1] M3 Vbr V
Fiber bend radius 25 mm
Lead soldering time at 260°C 10 s
Notes:
[1] The breakdown voltage and APD bias data will vary from device to device.
Each modulae will be supplied with deliverable data, in the formof Vbr and APD
bias voltages relative to a 10kV thermistor resistance.
Schematic Diagram
Figure[1] AT3SGCC schematic diagram
Data Sheet
4
Pin Out
Pin # Function Pin # Function
1 Case ground 10 +ve RF output
2 APD photodiode bias 11 Case RF ground
3 No connection 12 Case ground
4 No connection 13 No connection
5 No connection 14 Amplifier bias (3.3 Volts)
6 Case ground 15 No connection
7 Case RF ground 16 Thermistor
8 -ve RF output 17 Case ground
9 Case RF ground
Schematic Diagram
Fiber is 900um secondarycoated single-mode fiber,length = 900 - 1100mm
Data Sheet
5BH12850 Rev 1.0 January 2007.
©Bookham 2006. Bookham is a registered trademark of Bookham Inc.
Ordering Information:
AT3SGCC - (Connector)
J28 = SC/PC
J34 = FC/PC
J57 = LC
J59 = MU
e.g. AT3SGCC-J28 is an AT3SGCC with an SC/PC connector
Other options available on request.
Important Notice
Performance figures, data and any illustrative material
provided in this data sheet aretypical and must be
specifically confirmed in writing by Bookham before
they become applicable to any particular order or
contract. In accordance with the Bookham policy of
continuous improvement specifications may change
without notice. The publication of information in this
data sheet does not imply freedom from patent or other
protective rights of Bookham or others. Further details
areavailable from any Bookham sales representative.
Contact Information
North America
Bookham Worldwide
Headquarters
2584 Junction Ave.
San Jose
CA 95134
USA
•Tel: +1 408 919 1500
•Fax: +1 408 919 6083
www.bookham.com
sales@bookham.com
Europe
Paignton Office
Brixham Road
Paignton
Devon
TQ4 7BE
United Kingdom
•Tel: +44 (0) 1803 66 2000
•Fax: +44 (0) 1803 66 2801
Asia
Shenzhen Office
2Phoenix Road
Futian Free Trade Zone
Shenzhen 518038
China
• Tel: +86 755 33305888
•Fax: +86 755 33305805
+86 755 33305807
RoHS Compliance
Bookham is fully committed to environment
protection and sustainable development and has
set in place a comprehensive program for
removing polluting and hazardous substances from
all of its products. The relevant evidence of RoHS
compliance is held as part of our controlled
documentation for each of our compliant products.
RoHS compliance parts are available to order,
please refer to the ordering information section for
further details.
ISO14001:1996
EMS 504193
TL9000 Rev 3.0 (ISO9001:2000)
FM15040
