CS61884-IQZ

CS61884 Octal T1/E1/J1 Line Interface Unit Features Description     The CS61884 is a full-featured octal E1/T1/J1 short-haul LIU that supports both 1.544 Mbps or 2.048 Mbps data transmission. Each channel provides crystal-less jitter attenuation that complies with the most stringent standards. Each channel also provides internal AMI/B8ZS/HDB3 encoding/decoding. To support enhanced system diagnostics, channel zero can be configured for G.772 non-intrusive monitoring of any of the other 7 channels’ receive or transmit paths.            Industry-standard Footprint Octal E1/T1/J1 Short-haul Line Interface Unit Low Power No external component changes for 100 Ω/120 Ω/75 Ω operation. Pulse shapes can be customized by the user. Internal AMI, B8ZS, or HDB3 Encoding/Decoding LOS Detection per T1.231, ITU G.775, ETSI 300-233 G.772 Non-Intrusive Monitoring G.703 BITS Clock Recovery The CS61884 makes use of ultra-low-power, matchedimpedance transmitters and receivers to reduce power beyond that achieved by traditional driver designs. By achieving a more precise line match, this technique also provides superior return loss characteristics. Additionally, the internal line matching circuitry reduces the external component count. All transmitters have controls for independent power down and High-Z. Crystal-less Jitter Attenuation Serial/Parallel Microprocessor Control Interfaces Transmitter Short Circuit Current Limiter (