SK70706

SK70704/SK70706 784 Kbps HDSL Data Pump Chip Set Datasheet The HDSL Data Pump is a chip set consisting of the following two devices: s SK70704 Analog Core Chip (ACC) s SK70706 HDSL Digital Transceiver (HDX) The HDSL Data Pump is a 2-wire transceiver which provides echo-cancelling and 2B1Q line coding. It incorporates transmit pulse shaping, filtering, line drivers, receive equalization, timing and data recovery to provide 784 kbps, clear-channel, “data pipe” transmission. The Data Pump provides Near-End Cross-Talk (NEXT) performance in excess of that required over all ANSI and ETSI test loops. Typical transmission range on 26 AWG (0.4 mm) cable exceeds 13 kft (4 km) in a noise-free environment or 9.5 kft (2.9 km) with ANSI-specified noise levels. The Data Pump meets the requirements of Bellcore TA-NWT-001210, ANSI T1 Technical Report No. 28-1994 and ETSI ETR-152. It provides one end of a single-channel HDSL transmission system from the twisted pair interface back to the Data Pump/HDSL data interface. The Data Pump can be used at either the HTU-R or the HTU-C end of the interface. Applications s T1 (2-pair) and fractional T1 transport s N-channel digital pair-gain Product Features s Wireless base station to switch interface s Campus and private networking s Fully integrated, 2-chip set for interfacing to 2-wire HDSL lines at 784 kbps s Single +5 V power supply s Integrated line drivers, filters and hybrid circuits result in greatly reduced external logic and simplified supp...