SerDes ICs Enlist Adaptive DSP Noise Cancellation April 14, 2004
The D-PHY SerDes ICs debut as the first high-speed, physical-layer transceivers to employ digital signal processing techniques to eliminate the noise associated with 5 Gb/s and 10 Gb/s transmissions over backplanes and copper media. This new architecture combines the company's WideEye technology, a set of adaptive DSP-based noise-cancellation techniques, with analog signal conditioning. The D-PHY 5G transceivers deliver 1.25 to 6.25 Gb/s transmissions over FR-4 material and two connectors at distances up to 60". It is available in two versions: the D-PHY 4x5G quad transceiver providing full-duplex transmissions up to 25 Gb/s and the D-PHY 2x5G dual transceiver that delivers up to 12.5 Gb/s. Each device also has eight low-speed SerDes links and offers three multiplexing options: 1:1, 2:1, and 4:1. A legacy mode available with 1:1 multiplexing detects connection with another SerDes device, allowing new cards to interface with existing ones. Other shared features include built-in self-test and real-time bit-error-rate monitoring. Available in 260-pin HSBGAs, high-volume prices for the D-PHY 4x5G and D-PHY 2x5G are $49 and $28 each, respectively. ANALOGIX SEMICONDUCTOR INC., Santa Clara, CA. (408) 988-8848.
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