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Электронный компонент: V23870-A2112-B100

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Preliminary Data Sheet
Fiber Optics
JULY 2002
V23870-A211x-xx00
(*)
Bi-Directional Pigtail SFF Transceiver
155 Mb/s, 1310 nm Tx / 1310 nm Rx





FEATURES
Integrated Beam Splitter
Bi-Directional Transmission in a single optical
window
Single fiber solution, singlemode fiber pigtail
with different connector options
Data rate up to 155 Mbit/s
FP Laser Diode with Multi-Quantum Well
structure, wavelength 1310 nm
Class 1 Laser Product
Incorporated laser driver and PIN-TIA Receiver
with post-amplifier
2x5 Small Form Factor Package with
Multisource Footprint
Absolute Maximum Ratings
Operating case temperature
V23870-A2111-xx00 ....................... 0 to 70
C
V23870-A2112-xx00 .................... -40 to 85
C
Storage Ambient Temperature ................. -40 to 85 C
Supply voltage .................................................. 3.53 V
Soldering Conditions Temp/Time
Iron Soldering only .................... 400 C / 10 s
*) Ordering Information
V23870 - A211x - xx00
Average Launched Power:
2: -8 ... -13 dBm
Temperature Range:
1: 0 ... +70 C
2: -40 ... +85 C
Connector:
A: Pigtail Only
B: SC
C: SC/APC 8
F: MU
H: MU-J
K: LC
Coupling:
(Tx/Rx, Signal Detect)
1: AC/AC, PECL SD
2: DC/DC, PECL SD
5: AC/AC, TTL SD
6: DC/DC, TTL SD
Fiber Optics
2
V23870-A2111/2-xx00 BIDI Pigtail SFF transceiver
DESCRIPTION
The Infineon BIDI transceiver part of Infineon's Small Form Factor transceiver family is based on the Physical
Medium Depend (PMD) sublayer and baseband medium.

Infineon's BIDI-TRX is designed to handle multiple data rates and can be designed into Fast Ethernet, FDDI, Fiber
Channel, ATM-155, SDH STM-1, SONET OC-3, CCTV and other applications as well as different FTTx
applications according to the 100 Mbps EFM standard (IEEE 802.3ah). It is suitable for both, short haul
applications and distances of 20 km and beyond.

The appropriate fiber optic cable is the 9
m singlemode fiber pigtail with different connector options.

The Infineon BIDI transceiver is a single unit comprised of a transmitter, a receiver, WDM filter or beam splitter,
and a singlemode fiber pigtail. This design frees the customer from many alignment and PC board layout
concerns.

This transceiver operates at 155Mb/s from a single power supply (+3.3 V). The full differential data inputs and
outputs are PECL and LVPECL compatible.

Functional Description of 2x5 Pin Row Transceiver
This transceiver is designed to transmit and receive serial data via a singlemode cable.

Functional Diagram
Fiber Optics
3
V23870-A2111/2-xx00 BIDI Pigtail SFF transceiver

The receiver component converts the optical serial data into PECL compatible electrical data (RD and RDnot). The
Signal Detect (SD, active high) shows whether an optical signal is present.

The transmitter converts PECL compatible electrical serial data (TD and TDnot) into optical serial data. Data lines
are differentially 100
terminated.

The transmitter contains a laser driver circuit that drives the modulation and bias current of the laser diode. The
currents are controlled by a power control circuit to guarantee constant output power of the laser over temperature
and aging.

The power control uses the output of the monitor PIN diode (mechanically built into the laser coupling unit) as a
controlling signal, to prevent the laser power from exceeding the operating limits.

Single fault condition is ensured by means of an integrated automatic shutdown circuit that disables the laser
when it detects laser fault to guarantee the laser Eye Safety.

The transceiver contains a supervisory circuit to control the power supply. This circuit makes an internal reset
signal whenever the supply voltage drops below the reset threshold. It keeps the reset signal active for at least
140 milliseconds after the voltage has risen above the reset threshold. During this time the laser is inactive.

The laser can be disabled by the TxDis input.


Technical Data

The electro-optical characteristics described in the following tables are valid only for use under the recommended
operating conditions.
Recommended Operating Conditions
Symbol
Min. Typ. Max. Unit
Operating Temperature Range at Case
1
T
C
0 +70
C
Operating Temperature Range at Case
2
T
C
-40
+85
C
Power Supply Voltage
V
CC
-V
EE
3.1 3.3 3.53 V
Transmitter
Data Input Differential Voltage
V
DIFF
250
1600
mV
Receiver
Input Center Wavelength
C
1500
1600 nm
1
For V23870-A2111-xx00
2
For V23870-A2112-xx00
Fiber Optics
4
V23870-A2111/2-xx00 BIDI Pigtail SFF transceiver
Transmitter
Symbol
Min. Typ. Max. Unit
Average Launched Power
P
out,max
-13
-8
dBm
Emission wavelength center of range
3
1270 1310 1350
nm
Spectral bandwidth (RMS)
3.0
nm
Temperature coefficient of emission wavelength
(T)
0.5
nm/K
Extinction
Ratio
(Dynamic)
ER
8.5
dB
Jitter (pkpk)
J
PP
1 ns
Rise Time (20% - 80%)
4
tR
2.5
ns
Fall Time (20% - 80%)
5
tF
2.5
ns
Eye diagram
ITU G.957 mask pattern
RIN
Noise
RIN
-120
dB/
Hz
Reset Threshold
5
V
TH
2.5 2.75 2.99 V
Reset Timeout
5
t
RES
140 240 560 ms
Power on Delay
t
PWR_ON
88 111 140 ms
Shut Off Time for TxDis
t
DIS
6
ms
Max Tx Supply Current
I
TX
90
135
mA
3
P
opt
= P
out,max
at T=25C
4
Rise and fall times are measured with the OC-3 filter ON
5
Laser power is shut down if power supply is below V
TH
and switch on if power supply is above V
TH
after t
RES
.
Fiber Optics
5
V23870-A2111/2-xx00 BIDI Pigtail SFF transceiver
Receiver
Symbol
Min. Typ. Max. Unit
Receiving wavelength center of range
6
R
1270 1310 1350
nm
Sensitivity (Average Power)
7
P
IN
-21
dBm
Saturation (Average Power)
P
SAT
-3.0
dBm
Signal Detect Assert Level
8
P
SDA
-22
dBm
Signal Detect Deassert Level
9
P
SDD
-31
dBm
Signal Detect Hysteresis
P
SDA
-
P
SDD
0.5 4 6
dB
Signal Detect Assert Time
t
ASS
100
s
Signal Detect Deassert Time
t
DAS
350
s
Data Output Differential Voltage
10
V
DIFF
0.4 0.8 1.0
V
Rise/Fall Time
t
R
; t
F
1.5
ns
Max Rx Supply Current
11
I
RX
60
130
mA
Module Electro-Optical Characteristics
Symbol
Min. Typ. Max. Unit
Optical Isolation
12
ORL
14
dB
6
P
opt
= P
out,max
at T=25C
7
Minimum average optical power at which the BER is less than1x10E10. Measured with a 10
23
1 NRZ PRBS as recommended by ANSI
T1E1.2, SONET OC-3, and ITU G.957.
8
An increase in optical power above the specified level will cause the SIGNAL DETECT output to switch from a Low state to a High state.
9
A decrease in optical power below the specified level will cause the SIGNAL DETECT to change from a High state to a Low state.
10
AC/AC for data. Load 50
to GND or 100
differential. For dynamic measurement a tolerance of 50mV should be added.
11
Supply current excluding Rx output load.
12
Source wavelength is 1550 nm, BiDi Tx and Rx is Off