♦
Features
• Bit rate : ~12.5 Gbps
• Power supply : VDD=5 V , VSS=-3.5 V
• Packaging : high performance butterfly package
• Light wave length : 1.3 µm/1.55 µm
• Fiber pigtail : 9.5 µm/125 µm SM fiber
• Monolithically integrated InP pin-photodiode
• Low noise GaAs preamplifier IC
• High sensitivity ~ -18 dBm
♦
Applications
• High-speed optical transmission systems for OC-192/STM-64(12.5 Gbps) and
measurement instruments
♦
Functional Description
The F084 series PIN-preamplifier modules are low-cost capable receiver modules with a
miniaturized size for use in the 12.5 Gbps SONET/SDH systems. An InP pin-photodiode with
monolithically integrated resistors and capacitors is utilized to spontaneously achieve excel-
lent noise immunity with a large dynamic range. A high-speed and low-noise built-in GaAs
preamplifier obtain high sensitivity and a stable operation. The high performance butterfly
package was developed for a high-speed operation, small dimension, and low cost. Further-
more, two optical functions, bending an optical axis and focusing, can be successfully
achieved by only one optical component without lenses. This originally developed optical
component technology without lenses achieved lower optical losses at a low cost.
The F0849956F is applicable for 1.3 µm/1.55 µm optical fiber communication systems
for OC-192/STM-64, typically showing a high sensitivity of -18 dBm.
PIN-Preamplifier Module
12.5 Gbps NRZ Data Rate
F0849956F
01.08.28
Advance
F0849956F
12.5 Gbps PIN-Preamplifier Module
♦
Block Diagram
♦
Absolute Maximum Ratings
All published data at Ta=25°C unless otherwise indicated. This device isn't guaranteed
opto-electric characteristics in these range. At least, this device isn't broken in these range.
Ta=25 °C
♦
Recommended Operating Conditions
PD diameter=30 µm
C1=400 pF
C2=C3=C4=C5=43 pF
C6=100000 pF
R1=3 kΩ
V
PD
V
DD
V
SS
C1C2C3
C6
C5
C4
R1
OUT
Parameter
Power Supply
Power Supply
Operating Temperature
Symbol
VDD
VSS
Ta
Min.
4.75
-3.68
0
Unit
V
V
°C
Std.
5.0
-3.5
25
Max.
5.25
-3.32
70
Parameter
Power Supply
PD Current
Operating Temperature
Storage Temperature
Symbol
VDD
IPD
Ta
Tstg
Rating
7.0
2.0
-40 ~ +85
-40 ~ +85
Unit
V
V
mApp
°C
12.5 Gbps PIN-Preamplifier Module
F0849956F
♦
Opto-Electrical Characteristics
VDD=4.75 ~ 5.25 V, VSS=-3.68 ~ -3.32 V ~Ta=25 °C
Parameter
Optical Wavelength
Optical Return Loss
Supply Current
Supply Current
Responsivity
Transimpedance
Cut-off frequency
Input Current Noise Spectral Density
Sensitivity
Overload
Output Return Loss
Symbol
λ
Preturn
IDD
ISS
R
Zt
fc
Inoise
Pin min
Pin max
RL
Condition
-
-
DC
DC
DC
f=1GHz
3dB down
f=1GHz
-
-
f=1~8GHz
Min.
-
-
-
-
0.7
-
-
-
-
0
-
Typ.
1550
-
120
30
0.85
300
10.0
10
-18
-
10
Max.
-
-25
-
-
-
-
-
20
-
-
-
Unit
nm
dB
mA
mA
A/W
Ω
GHz
pA/√Hz
dBm
dBm
dB
F0849956F
12.5 Gbps PIN-Preamplifier Module
♦
Connection Table
♦
Connection Diagram (Top View )
12131415161718192021
1
11
10345678 92
.oNlobmySretemaraP.oNlobmySretemaraP
1DNG)V0,0(dnuorG21DNG)V0,0(dnuorG
2DNG)V0,0(dnuorG31DNG)V0,0(dnuorG
3V
DP
)V0.5(ylppuSrewoP41DNG)V0,0(dnuorG
4V
DP
)V0.5(ylppuSrewoP51DNG)V0,0(dnuorG
5V
SS
)V5.3-(ylppuSrewoP61V
DD
)V0.5(ylppuSrewoP
6V
SS
)V5.3-(ylppuSrewoP71V
DD
)V0.5(ylppuSrewoP
7DNG)V0,0(dnuorG81CNnoitcennoCoN
8DNG)V0,0(dnuorG91CNnoitcennoCoN
9DNG)V0,0(dnuorG02DNG)V0,0(dnuorG
01DNG)V0,0(dnuorG12DNG)V0,0(dnuorG
11TUOtuptuOlangiS
♦
Connection Diagram (Top View )
12.5 Gbps PIN-Preamplifier Module
F0849956F
♦
Typical AC Characteristics
(1)Eye Diagrams (Ta=25 °C, 50 Ω Load)
Average Input Optical Power: -16 dBm (12.5Gbps NRZ, PRBS223-1)
(2)Frequency Response
NOW PRINTING
NOW PRINTING
F0849956F
12.5 Gbps PIN-Preamplifier Module
(3)Bit Error Rate Curve
NOW PRINTING
NOW PRINTING
12.5 Gbps PIN-Preamplifier Module
F0849956F
♦
Test Circuit
E/O
Converter Optical
Attenuater
Bit Error
Rate Tester
PD
Pulse
Pattern
Generator
Comparator
V
PD
V
DD
5 V
5 V
CLK 0.022µF
0.022µF
0.022µF
V
SS
-3.5 V
0.022µF
DUT
F0849956F
12.5 Gbps PIN-Preamplifier Module
♦
Packaging
15.00±0.30
3.00±0.508.89±0.13
ø5.50±0.20
1000±50
10.80±0.20
16.24±0.13
0.50±0.13
1.70±0.26
18.65±0.20 13.44±0.20
1.00±0.13
7.00±0.20
(12.94±0.25)
4.00
+0.50
-0.30
0.15
+0.05
-0.02