ps031601.3.1 ? vitesse semiconductor corporation ? 741 calle plano camarillo, ca 93012 tel: (800)-vitesse fax: (805) 987-5896 email: prodinfo@vitesse.com internet: www.vitesse.com product summary VSC8144 2.488gb/s 4:1 sonet/sdh transceiver with integrated clock generator features general description the VSC8144 is a sonet/sdh compatible multi-rate transceiver with integrated clock generator for use in sonet/sdh systems operating at oc-48, oc-24, oc-12, oc-3, or gigabit ethernet data rates. the internal clock generator uses a phase locked loop (pll) to multiply either a 77.76mhz, 155.52mhz, or 622.08mhz reference clock for internal logic and output retiming. the 4-bit parallel lvds interface incorporates an on-board fifo to address loop timing design issues. facility and equipment loopbacks can be configured separately or simultaneously. the device operates with 2.5 w maximum power and is packaged in a thermally enhanced 100-pin pqfp package. block diagram order information notice vitesse semiconductor corporation (?vitesse?) provides this document for informational purposes only. this document contains pr e-production information about vit- esse products in their concept, development and/or testing phase. all information in this document, including descriptions of f eatures, functions, performance, technical specifications and availability, is subject to change without notice at any time. nothing contained in this document shall be c onstrued as extending any warranty or promise, express or implied, that any vitesse product will be available as described or will be suitable for or will accomplish any particular task. vitesse products are not intended for use in life support appliances, devices or systems. use of a vitesse product in such appl ications without written consent is prohib- ited. product package VSC8144qq 100-pin pqfp multi-rate transceiver for sonet oc-48, oc-24, oc-12, oc-3, and gigabit ethernet rates 4-bit lvds low-speed interface on-chip pll-based clock generator high-speed clock output equipment, facility and split loopback modes exceeds bellcore jitter performance single 3.3v power supply 2.5 w maximum power dissipation 100-pin pqfp (14x14x2mm) demux cmu test fifo high-speed data high-speed clock high-speed loopback low-speed data low-speed clock low-speed loopback reference clock mux high-speed data high-speed clock low-speed data 4 low-speed clock low-speed clock oc-48/12/3 gbe control VSC8144 4
|
