Data
sheet
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Thinking optical solutions
10 Gb/s High Sensitivity
Coplanar APD Preamp
Receiver
The module consists of an APD photodetector, a low noise
preamplifier, a connectorized single-mode fibre pigtail
and a hermetic package with coplanar output. Optimized for
use in 10 Gb/s Metro applications, either as a discrete
device or within a transponder, using NRZ Modulation
with or without FEC at data rates up to at least 10.66 Gb/s.
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Features
· High Sensitivity, -26.5 dBm typical
· Surface Mount MSA compliant
· Low Capacitance high speed
InGaAs APD detector
· Designed to exceed the
requirements of Telcordia
GR468-CORE
Performance
Symbol
Min
Nom
Max
Unit
Optical Sensitivity 2
23
-1 BER< 10
-12
(4), m=10
Sens
-26.5
-24.5
dBm
High frequency -3 dB corner (2), m=10
F3dB
7
7.5
GHz
Deviation from linear phase (d.c-6 GHz)
-10
+10
deg
Return loss S22 (130 MHz to 6 GHz)
-10
dB
Return loss S22 (130 MHz to 8 GHz)
-10
-8
dB
Optical overload 2
23
-1 BER< 10
-12
(4)
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
Vee
-5.2
V
Dark current at 90% of V
br
ld
100
nA
Current consumption
lcc
75
90
mA
Transimpendance gain (2,3,5)
TZG
1100
1440
1800
Ohms
Characteristics
TC = 25 °C unless otherwise specified.
Note:
1) Optical wavelength between 1525nm 1575nm. Data to 1610 nm available on request.
2) Load impedance is 50
(AC coupled) with a return loss > 20 dB, up to 20 GHz.
3) Excludes APD responsivity.
4) Measured with 10 Gb/s NRZ PRBS data and no FEC.
5) Differential
Parameter
Symbol
Min
Max
Unit
Amplifier bias voltage (4)
Vcc
+0.5
-6
V
Operating temperature (1)
Top
-40
85
°C
Storage temperature (2)
Tstg
-40
85
°C
Maximum Transient Optical Input Power (3)
Ppo
10
dBm
APD bias voltage (4,5)
V
APD
40
V
Fibre 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) Vbr of individual device at given operating temperature is not to be exceeded.
Pin #
Symbol
Parameter
Pin #
Symbol
Parameter
1 GND
Case
ground
10 Out_P
Positive
output
2
Vpd
APD bias voltage
11
GND
Case ground
3
NC
No connection
12
GND
Case ground
4
Vee
Amplifier bias
13
FBIN
Offset feedback
5
Vcc
No connection
14
Vcc
No connection
6
GND
Case ground
15
NC
No connection
7 GND
Case
ground
16
Rth
Thermistor
8
Out_N
Negative output
17
GND
Case ground
9
GND
Case ground
Pinout Table
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Circuit Schematic and Dimensions
Vapd
-ve RF out
+ve RF out
Vee (-5.2 V)
R
THERMISTOR
(10k_@25C)
Rth
Figure 1: Schematic Diagram
Figure 2: Typical small signal diagram measured at 10Gb/s 2
23
-1 PRBS @M=10.
Figure 3: Typical large signal eye diagram measure at 10Gb/s 2
23
-1 PRBS.
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Figure 6: Outline Diagram
Ordering Information
AT10GC
Figure 4: AC Transfer function
Figure 5: Output DC offset control using pin 13 (FB_in).
Certificate No. FM 15040
Certificate No. EMS 35100
CAUTION
STATIC SENSITIVE DEVICE
OBSERVE PRECAUTIONS
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REV 1 Feb 2003
© Bookham Technology 2003 Bookham & ASOC are registered trademarks of Bookham Technology plc
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USA
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· Fax: +1 678 482 4022
Europe
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TQ4 7BE
UK
· Tel: +44 (0) 1803 66 2875
· Fax: +44 (0) 1803 66 2801
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· Tel: +852 (2100) 2249
· Fax: +852 (2100) 2585
Sales@bookham.com
Important Notice
Bookham Technology has a policy of
continuous improvement, as a result
certain parameters detailed on this flyer
may be subject to change without notice.
If you are interested in a particular product
please request the available from any
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