BURNABY, British Columbia -- PMC-Sierra Inc. here today rolled out three new broadband communication chips designed for use in network equipment, such as DSL access multiplexers (DSLAMs), customer premise equipment-based routers, and wireless base stations. The chips provide physical layer processing for next-generation access and metro-based equipment, according to PMC-Sierra.
"While current system development efforts focus on OC-48, OC-192 and beyond, it is critical that we continue to enable our customers to design and build world-class multi-service equipment with T1/E1, T3/E3, and OC-3/STM-1 connections for today's multi-layered, multi-rate network," said Travis Karr, product manager in PMC-Sierra's Optical Networking Division.
The S/UNI-STAR chip is an integrated single-channel OC-3 (155 Mbit/s) SONET/SDH framer that combines a dual-mode packet-over-Sonet (POS) frame processor and ATM cell processor with integrated clock recovery and clock synthesis. The chip's jitter performance meets all Bellcore GR-253 intrinsic jitter, jitter tolerance and jitter transfer specifications, said PMC-Sierra. The company said devices are designed to be pin and software compatible with PMC-Sierra's PM5349 S/UNI-quad and PM5351 S/UNI-Tetra circuits.
Integrating four DS3 framers, the S/UNI-4xD3F chip provides four physical layer interfaces for packet-based equipment. The devices provide E3 and J2 framer support that can be independently configured with DS-3 for multi-service flexibility, said the company. The S/UNI-4xD3F is pin and software compatible with PMC-Sierra's PM7347 S/UNI-Jet and PM7346 S/UNI-Qjet devices.
The S/UNI-CDB is a fully compatible with the Utopia Level-2 standard. It is a four-channel, cell delineation block device that operates up to a maximum speed of 52 megabits per second. The device provides the Physical Layer Convergence Protocol (PLCP) for DS-1, DS-3, E1 and E3 transmission systems. Support is provided for ATM direct mapping into various rates up to 52 Mbit/s. The S/UNI-CDB is pin and software compatible with PMC-Sierra's PM7347 S/UNI-Jet and PM7346 S/UNI-Qjet devices.
All three new devices are available today in production quantities. Pricing in high volumes is set at $53 each for the S/UNI-Star, $65 for the S/UNI-CDB, and $89 for the S/UNI-4xD3F. The S/UNI-CDB and S/UNI-4xD3F are offered in 256-pin SBGA packages, while the S/UNI-Star chip comes in a 304-pin SBGA.