NEWPORT BEACH, Calif. ( ChipWire) -- In the weeks remaining before the Optical Fibers Conference in early March, Conexant Systems Inc. will sample an unprecedented range of components in an effort to show it can handle all physical-layer functions surrounding an optoelectronic module -- with a special emphasis on 10-Gbit/second links. Conexant will rely on a rich mix of CMOS, BiCMOS, silicon-germanium and gallium-arsenide processes to offer a variety of integration options for system interfaces in 10- and 2.5-Gbit systems.
Conexant has quietly worked with a range of first-tier telecom OEMs to develop high-performance building blocks in functions surrounding a transceiver, said Achim Hill, vice president and business director of the company's new ICs for optical networks group. These include mux/demux and limiting amps, and crosspoint switches. Now, Hill said, Conexant is ready to take many of those custom designs into merchant markets.
Because of the limited availability of full product suites for OC-192 (10-Gbit) networks, Conexant will start with several products for an OC-192 optical interface. On the transmit side, these include a multiplexer and transimpedance amp. On the receiver side, Conexant will offer a demultiplexer, limiting amp and two types of drivers. A clock and data-recovery chip for 10-Gbit networks also will sample.
The CX60057 transimpedance amp, intended for a variety of long-haul applications, is capable of working with attenuated and dispersed inputs. It is offered in die form only. The companion CX60083 limiting amp helps amplify data signals and indicate signal loss. It comes in a 32-lead thin quad flat pack. The amps will ship in volume in the first quarter, priced at $199 each in quantities of 50,000.
For mux/demux functions, Conexant will offer three devices: the CX60062 serial-to-parallel converter; its demux equivalent, the CX60061 parallel-to-serial converter; and the CX60066, a dedicated clock/data recovery chip with an integrated limiting amp. They are priced at $850 each, also in lots of 50,000.
Conexant will offer two alternatives for laser drivers. The CX20480 10G LDM, capable of driving both laser diodes and external modulators, is manufactured in a SiGe BiCMOS process. Intended for medium-haul OC-192 applications, it has modulated and bias-current monitoring and a high-isolation mux for clocked or nonclocked data.
A long-haul equivalent, manufactured in GaAs, is the CX60080, which uses a delayed-lock loop that automatically adjusts for phase differences between clock and data. Both will sample in the second quarter. The SiGe medium-haul driver will be priced at $289 and the GaAs long-haul driver at $850 each, both in lots of 50,000.
For OC-48 applications, Conexant will offer a quad-channel clock and data recovery chip that can handle up to 3 Gbits/s per channel. Another quad chip will be aimed at Gigabit Ethernet applications in metropolitan topologies.
Conexant will sample a 34 x 34 crosspoint switch in this same time frame to serve as a drop-in replacement for existing designs. Hill said the company is having success with its denser, 68 x 68 crosspoint switch, for which Conexant claims unprecedented low power.