Fiber Optics
High Power BIDI
®
V23875-S3125-x100
Bi-Directional Optical Component
(SBH526A4x)
1310 nm Tx / 1480...1500 nm Rx with 155 Mbit/s, 3.3 V TIA
Preliminary Data
The V23875-S3125-x100 is a bi-directional optical
component designed for full-duplex communication
over a single fiber. The single fiber concept saves
overall system costs by eliminating one fiber,
allowing for doubling of capacity without installing
new fibers, and simplifying fiber management.
Features
File: 6101
• Integrated WDM filter for dual wavelength Tx/Rx
operation at 1310/1490 nm
• 1310 nm FP laser diode transmitter suitable for
data rates up to 1.25 Gbit/s
• 1490 nm PIN diode receiver with integrated 155 Mbit/s, 3.3 V TIA, and blocking filter
for 1550 nm
• –40°C to +85°C operating temperature range
• Single-mode fiber pigtail with different connector options
• Class 3B laser product
• Hermetically sealed Tx and Rx sub-components for high reliability
Applications
• Access Networks, e.g. media converters for Fiber-In-The-Loop (FITL), Point-to-Point
(P2P), and Passive Optical Networks (PON)
• Inter-system communication between Servers, Switches, Routers, Add-Drop-
Multiplexers, Cross Connects, etc. in Central Offices, Data Storage Networks, High
Speed Server Farms, etc.
• Digital Video and Closed Circuit Television (CCTV) applications for Transport, Traffic,
and Security
BIDI
®
is a registered trademark of Infineon Technologies.
Symbolic picture only – the actual pin layout may be different.
Data Sheet
1
2003-03-26
V23875-S3125-x100
Pin Configuration
Pin Configuration
Transmitter (bottom view)
2.54 mm
2
1
3
4
4
File: 6304
Pinning
1
2
LD
3
MD
Figure 1
Transmitter
Receiver (bottom view)
2.54 mm
2
1
3
4
Pinning
1
Out−
2
Pin
Pre-
amp
4 V
CC
3
Out+
File: 6307
Figure 2
Receiver
Data Sheet
2
2003-03-26
V23875-S3125-x100
Technical Data
Technical Data
Absolute Maximum Ratings
Parameter
Module
Operating temperature range at case
Storage temperature range
Soldering temperature (
t
max
= 10 s,
2 mm distance from bottom edge of case)
Laser Diode
Direct forward current
Reverse voltage
Monitor Diode
Reverse voltage
Forward current
Receiver Diode
Reverse voltage
Forward current
Optical power into the optical port
Symbol
Limit Values
min.
max.
85
85
260
°C
Unit
T
C
T
stg
T
S
–40
–40
I
F max
V
R
V
R
I
F
V
R
I
F
P
port
120
2
10
2
10
2
3
mA
V
V
mA
V
mA
mW
Data Sheet
3
2003-03-26
V23875-S3125-x100
Technical Data
The electro-optical characteristics described in the following tables are only valid for use
within the specified temperature range from –40°C up to 85°C unless otherwise
specified.
Transmitter Electro-Optical Characteristics
Parameter
Optical output power,
assuming 50% duty cycle
Maximum forward current
Emission wavelength center of range
P
F
= 1 mW
Spectral width
Rise time (10% - 90%)
Fall time (10% - 90%)
Threshold current
Radiant power at
I
th
Slope efficiency (0.1 to 1 mW)
Forward voltage
P
F
= 1 mW
Differential series resistance
Symbol
Limit Values
min.
max.
dBm
120
1260
1360
5
500
500
2
35
45
50
150
1.5
8
mA
µW
mW/A
V
mA
nm
nm
ps
0
Unit
P
max
I
max
l
trans
Dl
t
r
t
f
I
th
P
th
h
V
F
R
S
W
Monitor Diode Electro-Optical Characteristics
Parameter
Dark current
P
opt
= 0 mW,
V
R
= –5 V
Photocurrent
P
opt
= 1 mW,
V
R
= –5 V
Capacitance
V
R
= 5 V,
f
= 1 MHz
Tracking error
V
R
= 5 V
Symbol
Limit Values
min.
max.
500
100
1000
10
–1.5
1.5
nA
µA
pF
dB
Unit
I
R
I
P
C
5
TE
Data Sheet
4
2003-03-26
V23875-S3125-x100
Technical Data
Receiver Characteristics with Preamp
1)
Parameter
DC-Characteristics
Supply voltage
Supply current
AC-Characteristics
Optical sensitivity
(BER
10
–10
, PN23,
ER
10 dB)
l
= 1480...1500 nm
Linear bandwidth (–3 dB)
Optical overload (average)
Transimpedance (differential)
Output resistance
1)
Symbol
min.
V
CC
I
CC
S
3.0
Limit Values
typ.
3.3
22
–35
max.
3.6
Unit
V
mA
dBm
BW
P
max
R
T
R
out
25
140
1
62
40
100
MHz
dBm
k
W
W
Values for
T
A
= 25°C, unless otherwise noted.
Module Electro-Optical Characteristics
Parameter
Internal optical crosstalk at Rx
P
opt
= 100 µW
Symbol
CRT
I
-0
Limit Values
min.
max.
–47
–32
–47
–20
–20
dB
Unit
ISO
I
-
II
Optical isolation at Rx
against
P
opt
= 100 µW,
l
= 1550...1560 nm
Optical isolation at Rx
ISO
I
-
l
against
P
opt
= 100 µW,
l
= 1260...1360 nm
Return loss
P
opt
= 100 µW,
l
= 1480...1500 nm
Return loss
P
opt
= 100 µW,
l
= 1550...1560 nm
RL
I
RL
II
Data Sheet
5
2003-03-26
