INFINEON V23870-A211x-xx00 User Manual

Preliminary Data Sheet

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 driv er and PIN-TIA Receiver

•

with post-amplifier

• 2x5 Small Form Factor Package with

Multisource Footprint

*) Ordering Information

V23870-A211x-xx00

(*)

Bi-Directional Pigtail SFF Transceiver

155 Mb/s, 1310 nm Tx / 1310 nm Rx

Absolute Maximum Ratings

Operating case t emperature

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 Cond i tions Temp/Time

Iron Soldering only .................... 400 °C / 10 s

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

JULY 2002

DESCRIPTION

The Infineon BIDI® transceiver – p art 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 handl e multiple data rates and can be desig ned 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 Mb ps EFM standard (IEE E 802.3ah). It is suitable for both, short h aul
applications and distances of 20 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 filter or beam spl i tter,

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 dat a 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 2

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, ac ti v e hig h) shows whether an optica l sig nal is prese nt.

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 dr iver circuit that dri ve s 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 couplin g unit) as a
controlling signal, to prevent the laser power from exce eding the operating li mits.

Single fault condition is ensured by means of an integrated automatic shutdown circuit that disables the laser
when it detects laser fault to guar antee 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 d i sabled by the TxDi s input.

Technical Data

The electro-optical characteristics described in the following tables are valid only for use under the recommended
operating conditions.

Recommended Operating Condi ti ons Symbol Min. Typ. Max. Unit
Operating Tem perature Range at Case1 T

Operating Tem perature Range at Case2 T
Power Supply Voltage

0 +70 °C

C

-40 +85 °C

C

V

3.1 3.3 3.53 V

CC-VEE

Transmitter

Data Input Differential Voltage V

250 1600 mV

DIFF

Receiver

Input Center Wavelength

λ

1500 1600 nm

C

1

For V23870-A2111-xx00

2

For V23870-A2112-xx00

Fiber Optics 3

V23870-A2111/2-xx00 BIDI Pigtail SFF transceiver

Transmitter

Average Launched Power P
Emission wavelength center of range3
Spectral bandwidth (RMS) σ
Temperature co efficient of emission wavelength

Symbol Min. Typ. Max. Unit

-13 -8 dBm

out,max

λ

λ

∆λ

(T) 0.5 nm/K

1270 1310 1350 nm

3.0 nm

Extinction Ratio (Dynamic) ER 8.5 dB
Jitter (pkpk) JPP 1 ns
Rise Time (20% - 80%)4
Fall Time (20% - 80%)5

tR
tF

2.5 ns

2.5 ns
Eye diagram ITU G.957 mask pattern
RIN Noise RIN -120 dB/√Hz
Reset Threshold5 V
Reset Timeout5
Power on Delay t
Shut Off Time for TxDis t

2.5 2.75 2.99 V

TH

t

140 240 560 ms

RES

PWR_ON

6 ms

DIS

88 111 140 ms

Max Tx Supply Current ITX 90 135 mA

3

P

= P

opt

4

Rise and fall times are measured with the OC-3 filter ON

5

Laser power is shut down if power supply is below VTH and switch on if power supply is above VTH after t

out,max

at T=25°C

Fiber Optics 4

.

RES

V23870-A2111/2-xx00 BIDI Pigtail SFF transceiver