True DC Output Option
The PT-12B is available with optional dual power supplies, which
enables adjustment and/or stabilization of the DC output to enable
accurate extinction ratio measurements.
PT-12B
Product Bulletin (Preliminary) • April 2004
• PIN/TIA receiver
• High data rate, up to 12.5 Gb/s
• Broad wavelength range, 750–1650 nm
• 62.5 µm multimode fiber
input with SC or FC
• 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.
Specifications
Minimum
Typical
Maximum
Units
Wavelength range
750
1650
nm
Bandwidth (-3dB electrical)
9.0
9.5
GHz
Low frequency cutoff1
DC
kHz
Sensitivity @ 850 nm2
-15
dBm
Sensitivity @ 1310 nm2
-19
-18
dBm
Overload
+2
dBm
Responsivity @ 850 nm
0.5
0.55
A/W
Responsivity @ 1310 nm
0.9
0.95
A/W
Conversion gain @ 1310 nm
400
450
V/W
Electrical Return Loss (< 8 GHz)
-15
dB
Optical Return Loss
-30
dB
Power dissipation
0.22
W
DC Electrical
Photodiode voltage
+5
+8
+12
V
Amplifier voltage (V
POS)
+3.2
+3.3
+3.4
V
Amplifier voltage (V
NEG)
-2.1
-2.0
-1.9
V
Mechanical
Package type
8-pin butterfly with SMA or GPO
Operating temperature
0
+70
°C
Storage temperature
-40
+85
°C
1 Output is DC coupled
2 10-10 BER, PRBS 223-1
Eye pattern taken at 12.5 Gb/s data rate
with -10 dBm optical input power.
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
