DS2181A

DS2181A CEPT Primary Rate Transceiver www.dalsemi.com FEATURES Single chip primary rate transceiver meets CCITT standards G.704, G.706 and G.732 Supports new CRC4-based framing standards and CAS and CCS signaling standards Simple serial interface used for device configuration and control in processor mode Hardware mode requires no host processor; intended for stand-alone applications Comprehensive, on-chip alarm generation, alarm detection, and error logging logic Shares footprint with DS2180A T1 Transceiver Comparison to DS2175 T1/CEPT Elastic Store, DS2186 Transmit Line Interface, DS2187 Receive Line Interface, and DS2188 Jitter Attenuator 5V supply; low-power CMOS technology PIN ASSIGNMENT TMSYNC TFSYNC TCLK TCHCLK TSER TMO TXD TSTS TSD TIND TAF TPOS TNEG INT SDI SDO CS SCLK SPS VSS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 VDD RLOS RFER RBV RCL RNEG RPOS RST TEST RCSYNC RSTS RSD RMSYNC RFSYNC RSER RCHCLK RCLK RAF RDMA RRA 40-Pin DIP (600-mil) RFSA TCHCLK TCLK RMSA TFSYNC TMSYNC VDD RLOS RFER RBV RCL TSER TMO TXD TSTS TSD TIND TAF TPOS TNEG INT SDI 5 4 3 2 1 44 43 42 41 1 of 32 SDO CS SCLK SPS VSS RRA RDMA RCTO RAF RCLK RCSA 19 20 21 22 23 24 25 26 27 7 8 9 10 11 12 13 14 15 16 17 44-PIN PLCC 39 38 37 36 35 34 33 32 31 30 29 RNEG RPOS RST TEST RCSYNC RSTS RSD RMSYNC RFSYNC RSER RCHCLK 112099 DS2181A DESCRIPTION The DS2181A is designed for use in CEPT networks and supports all logical requirem...