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C85-155M-C1A
High Performance & Low Cost 155Mbps ATM Multimode Fiber Transceiver
Using 850nm VCSEL Transmitter & 1300 nm InGaAs
PIN receiver
for SONET OC-3/SDH STM-1 in Low Cost 1 x 9 Package
Style
| FEATURES |
|
-
Fully compatible with 1300 nm optical links and various brand name
transceivers.
-
50 % power saving than LED transceivers.
-
Consisting of 850 nm VCSEL transmitter & 1300 nm InGaAs
PIN receiver.
-
Full compliance with the IEEE 802.3 standard.
-
Single +5V power supply.
-
Industry standard 1 x 9 package footprint.
-
Duplex SC connector.
-
Class I Laser Safe per FDA and IEC
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Driving up to 2 km for multimode optical fiber.
-
High performance and low cost.
|
|
DESCRIPTION
The C85-155M-C1A transceiver from Lasermate is a 155Mbps/194MBd
fiber optic transceiver module in the new industry standard 1x9 SIP package
style with a duplex SC connector interface. This transceiver
is designed to meet the ATM (Asynchronous Transfer Mode) distance requirements,
which is up to 2 Km in either 50 micron or 62.5 micron multimode fiber,
for multimode fiber ATM backbone links and multimode fiber ATM wiring closet
to desktop links applications. It will provide the system designer
with products to implement a range of solutions for multimode fiber SONET
OC-3 (SDH STM-1) physical layers for ATM and other services. This
transceiver is a low cost solution to the requirements of ATM155 interconnects.
It is a class I laser product compliant with FDA Radiation Performance
Standards, 21 CFR Subchapter J, as well as International Safety Standard
IEC-825-1. Typical applications include: LANs (Local Area Networks),
clustered workstation links, and connections to mass storage devices.
The C85-155M-C1A transceiver has an independent Transmitter
(TX) and Receiver (RX). The transmitter consists of a high reliability
850nm VCSEL (Vertical Cavity Surface Emitting Laser) diode which couples
to a fiber optic cable through an SC connector. The TX is driven with a
differential PECL (Positive Emitter Coupled Logic) signal applied to TX
In+ and TX In-. The maximum optical power meets the class I laser safety
standard. The receiver consists of a high performance 1300 nm InGaAs PIN
photodiode detector. Optical input is coupled to the receiver with either
a 50/125 or a 62.5/125 micron fiber through an SC connector.
APPLICATIONS
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FDDI / Fast Ethernet
-
ATM / SONET OC-3 / SDH STM-1
Transmitter Electro-optical Characteristics:
| PARAMETERS |
SYMBOL
|
MIN
TYP MAX
|
UNIT
|
| Wavelength |
lp
|
830
850 860
|
nm
|
| Optical Output Power (1) |
Po
|
-19
-14
|
dBm
|
| Supply Current |
Icc
|
35
45
|
mA
|
| Power Dissipation |
PDISS
|
0.175
|
W
|
| Supply Voltage |
Vcc
|
4.75
5.25
|
V
|
| Data Input Voltage - Low(2) |
VIL -VCC
|
-1.810
-1.475
|
V
|
| Data Input Voltage - High(2) |
VIH - VCC
|
-1.165
-0.880
|
V
|
| Optical Rise Time |
TR
|
0.6
3.0
|
ns
|
| Optical Fall Time |
TF
|
0.8
3.0
|
ns
|
| Duty Cycle Distortion |
DCD
|
0.6
|
ns p-p
|
| Systematic Jitter |
SJ
|
1.20
|
ns p-p
|
| Random Jitter |
RJ
|
0.52
|
ns p-p
|
(1) The launch power is detected by an InGaAs PIN photodiode
calibrated at 1300 nm, and the maximum optical power meets the class I
laser safety standard.
(2) Voltage levels listed are compatible with 100K Series
PECL logic levels. The parts are compatible with 10K and 10KH Series logic
when driven with differential signals.
Receiver Electro-optical Characteristics:
| PARAMETERS |
SYMBOL
|
MIN
TYP MAX
|
UNIT
|
| Supply Current |
Icc
|
55
|
mA
|
| Power Dissipation |
PDISS
|
0.275
|
W
|
| Supply Voltage |
Vcc
|
4.75
5.25
|
V
|
| Data Output Voltage - Low (1) |
VOL - VCC
|
-1.810
-1.475
|
V
|
| Data Output Voltage - High
(1) |
VOH - VCC
|
-1.165
-0.880
|
V
|
| Signal Detect output Voltage
- Low |
VOL - VCC
|
-1.810
-1.475
|
V
|
| Signal Detect output Voltage
- High |
VOH - VCC
|
-1.165
-0.880
|
V
|
| Rise Time |
TR
|
1.3
2.2
|
ns
|
| Fall Time |
TF
|
1.3
2.2
|
ns
|
| Duty Cycle Distortion |
DCD
|
0.4
|
ns p-p
|
| Systematic Jitter |
SJ
|
1.20
|
ns p-p
|
| Random Jitter |
RJ
|
0.52
|
ns p-p
|
| Sensitivity |
|
-33
-30
|
dBm
|
| Operating Wavelength |
l
|
1270
1380
|
nm
|
| Power Level (avg.) Detect Assert |
PA
|
-33
|
dBm
|
| Power Level (avg.) Detect Deassert |
PD
|
-45 |
dBm
|
| Level detect hysteresis |
PA - PD
|
1.75
2.25 2.75
|
dB
|
| Signal Detect Assert Time |
|
100
|
ms
|
| Signal Detect Deassert Time |
|
350
|
ms
|
(1) Voltage levels listed are compatible with 100K Series
PECL logic levels. The parts are compatible with 10K and 10KH Series logic
when driven with differential signals.
Absolute Maximum Ratings:
| Parameter |
Symbol
|
Min.
|
Max.
|
Unit
|
| Storage Temperature |
Ts
|
-40
|
100
|
oC
|
| Operating Temperature |
To
|
0
|
70
|
oC
|
| Lead Solder Temperature |
|
|
260/10
|
oC /sec
|
| Supply Voltage |
VCC
|
-0.5
|
7
|
V
|
OUTLINE DIMENSIONS:
Typical Application Circuit:
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