Preliminary Data Sheet
V23870-G4511-xx10
(*)
1.25 Gb/s Bi-Directional SFF Transceiver
1490nm Tx / 1310nm Burst Mode Rx
EPON OLT
FEATURES
•
Integrated Wavelength Division Multiplexer
(WDM)
•
Bi-Directional Transmission in 2
nd
and 3
rd
optical window
•
Single fiber solution, singlemode pigtail
•
Data rate up to 1.25 Gbit/s
•
DFB Laser Diode with Multi-Quantum Well
structure, wavelength 1490 nm
•
Incorporated laser driver and PIN-TIA Receiver
with post-amplifier
•
2x5 Small Form Factor Package with
Multisource Footprint
*) Ordering Information
Absolute Maximum Ratings
Operating case temperature
V23870-G4511-xx10 ....................... 0 to 70
°C
Storage Ambient Temperature ................. -40 to 85 °C
Power Dissipation
V23870-G4511-xx10 ............................. 1.2 W
Supply Voltage ..................................................
5V
Soldering Conditions Temp/Time
Iron Soldering only .................... 400 °C / 10 s
Fiber Optics
MARCH 2004
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, SONET OC-24, CCTV and other applications as well as different FTTx applications according to the 1.25
Gb/s EFM standard (IEEE 802.3ah). It is suitable for both, short haul applications and distances of 10 km and
beyond.
The appropriate fiber optic cable is the 9µm singlemode fiber pigtail with different connector options.
The Infineon BIDI transceiver is a single unit comprised of a transmitter, a receiver, WDM filte, and a singlemode
pigtail. This design frees the customer from many alignment and PC board layout concerns.
This transceiver operates at 1.25Gb/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
The receiver component converts the optical serial data into TTL 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 100Ω 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.
Fiber Optics
2
V23870-G4511-xx00 Pigtail EPON BIDI SFF transceiver
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
Operating Temperature Range at Case
Power Supply Voltage
Transmitter
Data Input Differential Voltage
Receiver
Input Wavelength Range
λ
C
1260
1360
nm
V
DIFF
250
1600
mV
Symbol
T
C
V
CC
-V
EE
Min.
0
3.135
3.3
Typ.
Max.
+70
3.465
Unit
°C
V
Fiber Optics
3
V23870-G4511-xx00 Pigtail EPON BIDI SFF transceiver
Transmitter
Average Launched Power
Emission Wavelength Range
Symbol
P
out,max
λ
Min.
-3
1480
1460
Typ.
Max.
+2
1500
1580
0.88
Unit
dBm
nm
Spectral bandwidth (RMS)
Extinction Ratio (Dynamic)
Optical Modulation Amplitude (Launched)
Jitter (pkpk)
Rise Time (20% - 80%)
1
Fall Time (20% - 80%)
1
Eye diagram
Reset Threshold
Reset Timeout
2
Power on Delay
Shut Off Time for TxDis
Max Tx Supply Current
3
2
σ
λ
ER
OMA
J
PP
tR
tF
6.0
0.6
nm
dB
mW
150
200
500
GPON mask pattern
ps
ps
ps
V
TH
t
RES
t
PWR_ON
t
DIS
I
TX
2.5
140
88
2.75
240
111
2.99
560
140
6
165
V
ms
ms
ms
mA
1
2
Rise and fall times are measured with the OC-24 filter ON
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
.
3
For V23870-G4513-xx00
Fiber Optics
4
V23870-G4511-xx00 Pigtail EPON BIDI SFF transceiver
Receiver
Receiving Wavelength Range
Sensitivity (Average Power)
4
Symbol
λ
R
P
IN
Min.
1260
Typ.
Max.
1360
-24
-21
Unit
nm
dBm
Burst Mode Recovery Time
5
Trec
P
RX
P
SAT
P
SDA
P
SDD
P
SDA
-
P
SDD
-33
0.5
4
-21
-1.0
400
-8
ns
dBm
dBm
Input Power Ranges for Burst Mode Operation
Saturation (Average Power)
Signal Detect Assert Level
6
Signal Detect Deassert Level
7
Signal Detect Hysteresis
-23.5
dBm
dBm
6
dB
Signal Detect Assert Time
Signal Detect Deassert Time
Data Output Differential Voltage
Rise/Fall Time
S/X Ratio
Max Rx Supply Current
9
8
t
ASS
t
DAS
V
DIFF
t
R
; t
F
SX
I
RX
10
60
0.4
0.8
100
350
1.0
260
µs
µs
V
ps
dB
130
mA
Module Electro-Optical Characteristics
Receiver Reflectance
10
Symbol
ORL
Min.
Typ.
Max.
20
Unit
dB
4
Minimum average optical power at which the BER is less than1x10E–12. Measured with a 10
7
–1 NRZ PRBS as recommended by ANSI
T1E1.2, SONET OC-24, and with an ER of 6dB.
5
See Figure 1 for timing definition
6
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.
7
A decrease in optical power below the specified level will cause the SIGNAL DETECT to change from a High state to a Low state.
8
AC/AC for data. Load 50Ω to GND or 100Ω differential. For dynamic measurement a tolerance of 50mV should be added.
9
Supply current excluding Rx output load.
10
Source wavelength is 1310 nm, BiDi Tx and Rx is Off
Fiber Optics
5
V23870-G4511-xx00 Pigtail EPON BIDI SFF transceiver
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