Preliminary Technical Data (v0.4, July, 1999)
MDS/R4212A
12-channel Optical Interconnect Modules
Preliminary Product Disclaimer
This preliminary data sheet is provided to assist you in the evaluation of functional samples of
the products which are under development and for which reliability testing has not been
completed. Hitachi, Ltd. reserves the right to change prices, features, functions, specifications,
capabilities and release schedule, until it releases these products for general sales.
FEATURES
· 12-channel parallel transmission from DC to 800 Mbit/s per channel
· Transmission distance up to 50 m
· Compact size: 3.9 cm3, and low power consumption: 300 mW/ch
· Single 3.3 V power supply
· MPO (Multi-path Push-On) / MT (Mechanical Transfer) optical connector
· Wide temperature range: Tc= 0 to 80°C
· Reliable hermetically-sealed active components
DESCRIPTION
General
Hitachi’s 12-channel parallel optical interconnects modules MDS/R4212A offer an attractive
solution over the electrical interconnection bottleneck. The MDS/R4212A modules are used in
applications that require very high data throughput such as high-speed computers, high-capacity
communication systems, and large-capacity data-acquisition systems.
The MDS/R4212A modules provide synchronous 11 data channels and single clock channel. Each
data channel can handle from DC up to 800 Mbit/s data stream. Both the transmitter and receiver
include latches to adjust the 11 data slots, which release from the optical transmission skew.
The MDS/R4212A modules are fully integrated 12-channel optical interconnect modules. The
MDS4212A transmitter consists of a monolithically integrated 12-channel LD (Laser Diode) array
and driver array IC array. The MDR4212A receiver consists of a monolithically integrated 12-
channel PD (PhotoDiode) array and receiver array IC. They are incorporated in hermetically
sealed compact packages. The power consumption is 300 mW per channel.
The MDS/R4212A modules require a single 3.3-V power supply. The MDS/R4212A modules
have widely used MPO or MT optical connectors.
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