BCM8220 2.488/2.667 GBPS ULTRA LOW POWER SONET/SDH TRANSCEIVER FEATURES SUMMARY OF BENEFITS OC-48/STM-16 SONET/SDH transceiver Ultra low power consumption eliminates external heat sinks, fans for system airflow, and expensive high current power Selectable full-duplex transmission between standard rate of supplies. 2.488 Gbps or Forward Error Correction rate of 2.667 Gbps. High integration reduces design cycle and time to market. Single-chip, integrated solution containing multiplexer (Mux), clock multiplication unit (CMU), demultiplexer (Demux), and Features increased port density per board and system. clock data recovery (CDR) functions. Selectable standard OC-48/STM-16 rate of 2.488 Gbps or 4-bit, 622.08/666.84-MHz, LVDS system interface Forward Error Correction rate of 2.667 Gbps, allowing for easy system configuration to maximize transmission Both line and system loopback modes bandwidth and data availability. Additional diagnostic features include lock detect and loss of Extensive diagnostic features provide easy system signal. troubleshooting. Meets SONET/SDH jitter requirements Compliant with industry standards to reduce design cycle and time to market. Low power dissipation of 550 mW typical CMOS-based device takes advantage of the most effective Operates at 1.8V silicon economy of scale. 1.8V or 3.3V CMOS I/O interface Standard CMOS fabrication process APPLICATIONS Two packages offered: 100-pin QFP package, 14 mm 14 mm 1.4 mm OC-48/STM-16 transmission Equipment 100-pin BGA package, 11 mm 11 mm 1.71 mm SONET/SDH optical modules ADD/DROP multiplexers Digital cross-connects ATM switch backbones Terabit and edge routers DWDM systems BCM8220 Application Block Diagram 4 4 ORX OTX 622.08 or 622.08 or 2.488 or 2.667 (FEC) G bs 666.84 Mbps 666.84 Mbps OTX ORX 4 4 Network Interface Processor BCM8220 BCM8220 Network Interface ProcessorOutput Register 4:1 Parallel- 1:4 Serial- to-Serial to-Parallel 4 x 9 FIFO Input Register OVERVIEW FIFO OVF RESET Control TCK4IP Write TCK4IN Pointer DI0P DI0N Output TXDP Retime B TXDN DI3P DI3N M TXCKP U Read TXCKN X SEL2P5G Pointer REFCKP 2.488/2.666 M TCK4OP REFCKN GHz PLL U DIVIDE-BY-4 TCK4ON X REF155EN LCKDET CMU RTSYNC DO0P RDIN1P M DO0N RDIN1N U RDIN2P X CDR RDIN2N DO3P SELRD1 DO3 LOSBDLYEN CKSEL KILLRXCLK M U RCK4OP KILLRXDAT DIVIDE-BY-4 X RCK4ON LOSIB LCKDET CDR Loop- LINELBB LOSB back SYSLBB Logic TSTLBB The BCM8220 FEC-capable (Forward Error Correction), SONET/SDH Clock recovery is performed by synchronizing the on-chip VCO directly transceiver is a fully integrated, SONET OC-48 (2.488/2.667 Gbps) to the incoming data stream. The low-jitter, LVDS interface guarantees interface serialization/deserialization device with an integrated clock bit error compliance with the Telcordia GR-253-CORE, ANSI, and ITU- multiplication unit (CMU) and integrated clock and data recovery (CDR) T standards. The BCM8220 is packaged in a 14 x 14 mm, 100-pin LQFP circuit. Output frequency is selectable at 2.488 Gbps or 2.667 Gbps, package or an 11 x 11 mm, 100-pin BGA package. allowing use of the FEC capability. Transmitter functions include: On-chip clock synthesis is performed by the high-frequency, low-jitter, 4-bit parallel input phase-locked loop on the BCM8220 transceiver chip, allowing the use of Elastic buffering 2.488/2.666 GHz clock generation slower 77.76/155.52-MHz (83.35/166.71-MHz) external transmit clock Parallel-to-serial conversion references. Serial differential data output Receiver functions include: 2.488/2.666 Gbps differential data input Clock and data recovery Serial-to-parallel conversion 4-bit parallel output Broadcom , the pulse logo, and Connecting everything are trademarks of Broadcom Corporation and/ or its subsidiaries in the United States and certain other countries. All other trademarks mentioned are the property of their respective owners. BROADCOM CORPORATION Phone: 949-450-8700 16215 Alton Parkway, P.O. Box 57013 Fax: 949-450-8710 Irvine, California 92619-7013 E-mail: info broadcom.com Web: www.broadcom.com 2004 by BROADCOM CORPORATION. All rights reserved. 8220-PB08-R 07/02/04