OTTAWA -- Zarlink Semiconductor Inc. today expanded its high-density non-blocking time-division multiplexing (TDM) chip offering for switching 8,192-by-8,192 channels of voice/data traffic in next-generation networking systems.
The new MT90871 delivers a fourfold reduction in board space, system cost, and power consumption by providing the same capacity as four exiting 4,096-by-4,096 channel switching chips, said the Ottawa-based company.
"With the MT90871, we are first to market with the industry's most flexible 8K-by-8X, small footprint digital switching chip," said Kam Aite, product line manager at Zarlink.
The chip is based on Zarlink's four-in-one switching matrix, which boosts the performance and flexibility of TDM equipment, according to the company. The device provides 8,192-by-8,192 channels of unidirectional switching capacity. The MT90871 also features "per-stream-rate conversion," which converts any incoming voice-data stream from one speed to another, Zarlink said.
The MT90871 includes dedicated high-impedance control outputs for optional external drivers. Zarlink said this further improves bandwidth efficiency by eliminating the need to allocate one or more steams to perform high-impedance control. The chip offers data rates of 2-, 4-, 8-, and 16 megabits per second. The operating core voltage is 1.8 volt, with 3.3-volt tolerant inputs and outputs.
In quantities of 1,000, the MT90871 sells for $64.97 each. The switching chip is available in a 196-ball low-profile BGA package, which measures 15-by-15 mm with a 1.0-mm pitch between contacts. The chip is fabricated in 0.18-micron CMOS technology.
Zarlink's family of high-density TDM switches now comprises of chips for 32K-by-8K channels, 16K-by-16K channels, 12K-by-12K channels, and 8K-by-8K channels.