PT-12B
• PIN/TIA receiver
• 62.5 µm multimode fiber
input with SC or FC
Product Bulletin (Preliminary) • April 2004
• High data rate, up to 12.5 Gb/s
• Broad wavelength range, 750–1650 nm
• High sensitivity, -15 dBm @ 850 nm
• SMA or GPO output connector
The
PT-12B
is a single-output receiver
module for 12.5 Gb/s short wavelength
applications. It couples a high responsivity
(0.95 A/W), front-illuminated PIN photo-
diode, usable from 750 nm to 1650 nm,
with an internal transimpedance gain stage
of 475 V/A. This combination produces a
receiver with a 9.5 GHz bandwidth and a
conversion gain of 450 V/W at 1310 nm.
The single-coaxial output module is
available with either an SMA or GPO
output connector in a compact, 8-pin
butterfly package with multimode fiber
input.
DC Electrical
Photodiode voltage
Amplifier voltage (V
POS
)
Amplifier voltage (V
NEG
)
+5
+3.2
-2.1
+8
+3.3
-2.0
+12
+3.4
-1.9
V
V
V
Specifications
Wavelength range
Bandwidth (-3dB electrical)
Low frequency cutoff
1
Sensitivity @ 850 nm
2
Sensitivity @ 1310 nm
Overload
Responsivity @ 850 nm
Responsivity @ 1310 nm
Conversion gain @ 1310 nm
Electrical Return Loss (< 8 GHz)
Optical Return Loss
Power dissipation
2
Minimum
750
9.0
DC
Typical
9.5
-15
-19
+2
Maximum
1650
Units
nm
GHz
kHz
dBm
-18
dBm
dBm
A/W
A/W
V/W
0.5
0.9
400
0.55
0.95
450
-15
-30
0.22
dB
dB
W
Mechanical
Package type
Operating temperature
Storage temperature
1
2
8-pin butterfly with SMA or GPO
0
-40
+70
+85
°C
°C
Output is DC coupled
10
-10
BER, PRBS 2
23
-1
True DC Output Option
The
PT-12B
is available with optional dual power supplies, which
Eye pattern taken at 12.5 Gb/s data rate
with -10 dBm optical input power.
enables adjustment and/or stabilization of the DC output to enable
accurate extinction ratio measurements.
PT-12B
Product Specifications
.100 TYP.
.015±.003 TYP.
4X #2–56
CLEARANCE SLOT
(ø.095)
8
5
.354
1
4
.500
.725
1.511
Single-mode fiber
with 900µm buffer
(1 meter typical)
.520
.235
.060
.344
.211
.881
Pin Description
1
2
3
4
1
Pin Description
5
6
7
8
GND
V
POS
NC
NC
NC (or DC Mon
1
)
V
PD
V
NEG
GND (or OffsetVoltage Input
1
)
Application Notes
Electrostatic discharge (ESD) will cause permanent
damage to the product. Please avoid any ESD to the
input pins or output connector. Use standard ESD
protective equipment when handling this product.
Temperature and fiber restrictions are as follows:
Lead soldering: 250ºC for no more than 10 seconds
Fiber feed-through tube: 120ºC
Fiber pull force: 10 N
Fiber bending radius: 1 inch or less
Exceeding these conditions can cause permanent
damage to the device.
If ordered with true DC output option
PT-12B Ordering Information
Base model
Option format
Option
Package option
Fiber diameter options (µm)
Fiber connector options
PT-12B
Option/Package/Fiber diameter/Fiber connector
Blank
or TDC
8GPO or 8SMA
62.5
FC or SC
Quality Vision
As a leader in ultrafast optical receivers, Picometrix
is committed to providing the highest quality
ultrafast products on the market. This quality vision
commits us to continually improving our product
designs and manufacturing processes, in order to
ensure the highest level of customer satisfaction.
The company maintains a stringent quality control
program to ensure that all products meet or
surpass customer requirements.
PT-12B
Picometrix, Inc.
• PO Box 130243
Ann Arbor, MI • 48113-0243
734-998-4501 • 734-998-3474 fax
www.picometrix.com
© 2004 Picometrix, Inc. All rights reserved. Specifications
and output data subject to change without notice.
PB-PT-12B-0404-A
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