Data Sheet
1
This product is a high sensitivity optical receiver optimized for
OC-48 optical transport systems. The high sensitivity
performance given by the avalanche photodiode (APD) and
preamp make the product ideal for maximizing unamplified
transmission distances. The receiver supports FEC data rates
up to 2.7Gb/s. The DC component cancellation function
offered by the preamp allows the product to operate error free
under high input power conditions. The receiver contains an
APD, a low noise preamplifier, a precision thermistor and a
single-mode connectorized fiber pigtail, all housed in an
industry-standard Mini-DIL package.
Features:
• High sensitivity, -34dBm typical
• Better than 0dBm overload
• Industry-standard Mini-DIL package footprint
• Differential data outputs
• -40°C to +85°C maximum operating
temperature range
• RoHS 5/6 compliant
Applications:
•OC-48 Optical transportSystems
•OC-48 DWDM Metroand Long Haul Systems
• STM-16 SDH or OC-48 SONET Systems
2.5Gb/s APD preamp Mini-DIL receiver
ATM2400C
Data Sheet
2
Operating characteristics
Parameter Symbol Measurement Min Typ Max Unit
Conditions
APD breakdown voltage Vbr Id=10µA 50 65 V
APD temperature coefficient TVbr 0.09 0.1 0.12 V/°C
of breakdown voltage
Differential Transimpedance ZTIph =40µAmean 2.8 3.5 4.5 kΩ
gain
Bandwidth[1] S21 -3dB from 100MHz 1.7 2.0 GHz
Lower cut-off frequency[1] S21 -3dB from 100MHz 50 kHz
APD sensitivity over 2.5Gb/s, 223-1 PRBS, -32 -33.5 dBm
temperature extinction ratio = 15dB
BER < 1x10-10
-5°C to +70°C case
APD sensitivity 2.5Gb/s, 223-1 PRBS -34 dBm
extinction ratio = 15dB
BER < 1x10-10 25°C case
APD overload over Psat 2.5Gb/s, 223-1 PRBS, -3 +1 dBm
temperature extinction ratio 15dB
1x10-10 BER, M=3
-5°C to +70°C case
Output voltage swing VOUT Peak-to-peak differential 220 280 400 mV
at overload
Optical return loss ORL 30 dB
Power supply current ICC 28 45 mA
Power supply voltage VCC 3.0 3.3 3.6 V
Output return loss S22 10 dB
up to 1.8GHz
Output return loss S22 5dB
up to 3.0GHz
Thermistor resistance RTH Beta constant = 3950 10 kΩ
All parameters are measured with outputs 50 Ohm AC coupled,
specified at a case temperature of 25°C unless otherwise stated.
Optical wavelength between 1525-1575nm. Data to 1610nm
available on request.
Note:
[1] Pin = 30dBm, M = 10.
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 +1 dBm
Power supply voltage -0.5 6.0 V
APD supply voltage[1] 0V
br V
Fiber bend radius 20 mm
Lead soldering time at 260°C 10 s
Note:
[1] APD bias requirements vary from device to device. APD breakdown voltage and bias
data, relative to a thermistor resistance of 10kΩwill be supplied with each device.
Class 1 ESD precautions must be observed when handling these devices.
Outline Drawing
Gull-wing formed leads
Data Sheet
4
Pin Out
Pin # Symbol Description
1V
APD APD supply voltage (+ve)
2 GND Case ground
3OUT_P Data out +ve
4GND Case ground
5R
TH Thermistor
6 OUT_N Data out -ve
7 GND Case ground
8 VCC Power supply (+ve)
Schematic Diagram
Data Sheet
5BH12849 Rev 1.0 January 2007.
©Bookham 2006. Bookham is a registered trademark of Bookham Inc.
Ordering Information:
ATM2400C - (Connector)
J28 = SC/PC
J57 = LC
e.g. ATM2400C-J28 is a 3.3 volt 2.5Gb/s APD preamp Mini-DIL
receiver with gull-wing-formed leads and an SC/PC connector.
Other options available on request.
Important Notice
Performance figures, data and any illustrative material
provided in this data sheet are typical 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
are available 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
