ACS8510 SETS Synchronous Equipment Timing Source for SONET or SDH Network Elements PRODUCT BRIEF ADVANCED COMMUNCIATIONS Description Features The ACS8510 is a highly integrated, single-chip solution for the Synchronous Equipment Timing Source (SETS) function in a SONET or SDH Network Element. The device generates SONET or SDH Equipment Clocks (SEC) and frame synchronization clocks. The ACS8510 is fully compliant with the required specifications and standards. Suitable for Stratum 3E*, 3, 4E and 4 SONET or SDH Equipment Clock (SEC) applications Meets AT&T, ITU-T, ETSI and Telcordia specifications Accepts 14 individual input reference clocks Generates 11 output clocks Supports Free-Running, Locked and Holdover modes of operation Robust input clock source quality monitoring on all inputs Automatic hit-less source switchover on loss of input Phase build-out for output clock phase continuity during input switchover and mode transitions Microprocessor interface - Intel, Motorola, Serial, Multiplexed, EPROM Programmable wander and jitter tracking/ attenuation 0.1 Hz to 20 Hz Support for Master/Slave device configuration alignment and hot/standby redundancy IEEE 1149.1 JTAG Boundary Scan Single 3.3 v operation. 5 v I/O compatible Operating temperature (ambient) -40°C to +85°C Available in 100 pin LQFP package The device supports Free-Run, Locked and Holdover modes. It also supports all three types of reference clock source: recovered line clock, PDH network, and node synchronization. The ACS8510 generates independent SEC and BITS clocks, an 8 kHz Frame Synchronization clock and a 2 kHz Multi-Frame Synchronization clock. Two ACS8510 devices can be used together in a Master/Slave configuration mode allowing system protection against a single ACS8510 failure. A microprocessor port is incorporated, providing access to the configuration and status registers for device setup and monitoring. The ACS8510 supports IEEE 1149.1 JTAG boundary scan. * Meets Holdover requirements, lowest bandwidth 0.1 Hz. Block Diagram 14 Inp ut Reference Source includin g: AM I 64/8 kHz 2 kHz 8 kHz N x 8 kHz 1.544 MHz 2.048 MHz 6.48 MHz 19.44 MHz 25.92 MHz 38.88 MHz 51.84 MHz 77.76 MHz 155.52 MHz Input Ports TOUT4 selector Div ider PFD Output Ports DTO 2xT OUT4 DPLL/F req. Synthesis 6xT IN1 4xT IN2 Dig ital Loop Filter Monitors 4xT IN3 7xT OUT0 TOUT0 selector MFrSync PFD Div ider Dig ital Loop Filter DTO DPLL/Freq. S ynthesis T CK TDI TMS T RST TDO IEEE 1149.1 JTAG Chip C lock Generator Priority Table Register Set APLL Frequency Dividers MFrSync FrSync 11 Outp ut Ports includin g: 1.544/2.048 M Hz 3.088/4.096 M Hz 6.176/8.182 M Hz 12.352/16.384 M Hz 6.48 MHz 19.44 MHz 25.92 MHz 38.88 MHz 51.84 MHz 77.76 MHz 155.52 MHz 311.04 MHz AM I 64/8 kHz 2 kHz MFrSy nc 8 kHz FrSy nc Micropro cessor Port TCXO (*OCXO) CLK Revision 2.7/Jan 2001 ã2001 Semtech Corp www.semtech.com ACS8510 SETS PRODUCT BRIEF ADVANCED COMMUNCIATIONS Applications SONET/SDH Add/Drop Multiplexers SONET/SDH Uplinks SONET/SDH Cross Connects ATM Switches and Routers SONET/SDH Sychronization Solution Clock Backpla ne M aster SEC clocks Slave SEC clocks M aster System Clock Ca rd T O1 T O2 SEC1 SEC2 SONET/SDH Reference Clock Sources T1 , T2 , T3 ACS8510 SETS SEC14 M aster SECs M FrSy nc M ultiple Line Ca rds T O11 M SEC SSEC M SEC EXT SEC SSEC Slave System Clock Ca rd T O1 T O2 SEC1 SEC2 SEC14 ACS8510 SETS ACS8515 LC/P ACS8515 LC/P ACS8515 LC/P MFrSync EXT SEC Slave SECs M FrSy nc MFrSync T O11 Input Reference Source Selection Priorities Lo cal SEC Frequ en cy Trans lation M SEC SSEC EXT SEC MFrSync ACS8515 LC/P L ocal 2 kH z MFrSyn c 8k Hz FrSy nc For additional information, contact the following: Semtech Corporation Advanced Communications Products E-Mail: [email protected] Internet: http://www.semtech.com USA: 652 Mitchell Road, Newbury Park, CA 91320-2289 Tel: +1 805 498 2111, Fax: +1 805 498 3804 FAR EAST: 11F, No. 46, Lane 11, Kuang Fu North Road, Taipei, Taiwan, R.O.C. Tel: +886 2 2748 3380, Fax: +886 2 2748 3390 EUROPE: Delta House, Chilworth Science Park, Southampton, Hants, SO16 7NS, UK Tel: +44 23 80 769008, Fax: +44 23 80 768612 Revision 2.7/Jan 2001 ã2001 Semtech Corp 2 www.semtech.com