MT9045AN1 [Microchip]

The MT9045 generates ST-BUS clock and framing signals that are phase locked to either a 19.44MHz, 2.048MHz, 1.544MHz, or 8kHz input reference. It is compliant with AT&T TR62411 and Bellcore GR-1244-CORE Stratum 3, Stratum 4 Enhanced, and Stratum 4 and ETSI ETS 300 011; and ITU-T G.813 Option 1 for 2048kbit/s interfaces. The device meets jitter/wander tolerance, jitter/wander transfer, intrinsic jitter/wander, frequency accuracy, capture range, phase change slope, holdover frequency and MTIE requirements for these specifications. It provides Time Interval Error (TIE) correction, accepts reference inputs from two independent sources, and includes JTAG Boundary Scan.