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BCM8211_04 Datasheet, PDF (1/2 Pages) Broadcom Corporation. – 2.488 GBPS SONET/SDH TRANSCEIVER WITH INTERNAL LOOP TIMING | |||
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BCM8211
®
2.488 GBPS SONET/SDH TRANSCEIVER WITH INTERNAL LOOP TIMING
FEATURES
SUMMARY OF BENEFITS
⢠2.488-Gbps SONET/SDH transceiver with dual differential
serial I/O
⢠Fully integrated CDR, MUX, DEMUX, and CMU
⢠Selectable LVPECL/CMOS 16-bit, 155.52-Mbps interface to
framer or network processor
⢠On-chip PLL-based clock generator
⢠Line and system loopback modes
⢠Loss-of-signal output (LOSB) and input (LOSIB)
⢠TX and RX lock detect
⢠Elastic buffering with FIFO overflow alarm
⢠Selectable 77.76/155.52-MHz reference clock
⢠Selectable RX clock and RX data squelch on LOS
⢠Selectable loop timing mode
⢠Single 2.5V or dual 2.5V/3.3V supplies
⢠Power dissipation: 1.2W typical
⢠14 â 20 mm, 128-pin PQFP package
⢠Standard CMOS fabrication process
⢠Low power consumption eliminates external heat sinks, fans
for system airflow, and expensive high current power supplies.
⢠Supports SONET dual-fiber ring architecture.
⢠High integration reduces design cycle and time to market.
⢠Provides increased port density per board and system.
⢠CMOS-based device uses the most effective silicon economy of
scale.
⢠Meets SONET jitter requirements.
⢠Features low jitter: 3 mUIrms typical.
APPLICATIONS
⢠OC-48/STM-16 transmission equipment
⢠SONET/SDH optical modules
⢠ADD/DROP multiplexers
⢠Digital cross-connects
⢠ATM switch backbone
⢠SONET/SDH test equipment
⢠Terabit and edge routers
BCM8211 Application Block Diagram
16
155.52 Mbps
16
OTX
ORX
2.488 Gbps
ORX
OTX
16
155.52 Mbps
16
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