BCM5208 Datasheet, PDF (1/1 Pages) Broadcom Corporation. – 10/100 BASE-TX QUAD TRANSCEIVER

BCM5208
PRODU_BC_rT_ief
BCM5208 10/100BASE-TX QUAD-Φ™ TRANSCEIVER
BCM5208 FEATURES
• The Broadcom® BCM5208 is a Quad-Φ 10/100BASE-
T Transceiver that contains four 10BASE-T/100-
BASE-TX transceivers
• ^{10BASE-T/100BASE-TX/FX IEEE 802.3u-compliant}
• ^{Full-duplex Support in All Modes}
• ^{IEEE 802.3u-compliant Auto-Negotiation}
• ^{Media Independent Interface (MII) for Each Port}
• ^{Shared MII Serial Management Interface}
• ^{Fully-integrated Digital Adaptive Equalizers}
• ^{125 MHz Clock Generator and Timing Recovery}
• ^{Integrated Multimode Transmit Wave Shaping}
• ^{Integrated Baseline Wander Correction}
• ^{Carrier Integrity Monitor on Each Port}
• ^{Port Switching for Multisegment Repeaters}
• ^{MII Repeater Mode Support in All Modes}
• ^{LED Status Pins}
• ^{Loop-back Mode for Diagnostics}
• ^{IEEE 1149.1 (JTAG) Support}
• ^{3.3V Power Supply}
• ^{208-Pin PQFP Package}
SUMMARY OF BENEFITS
• Fully-integrated TX/FX Quad PHY Transceiver (MII
to TX Magnetics/FX Optics)
• Increases system port density
• Decreases system cost per port
• Simplifies system and board design
• Reduces power consumption
• ^{On-chip Multimode Transmit Wave Shaping}
• Eliminates need for external filters
• Minimizes EMI
• ^{Flexible Ethernet PHY Solution:}
• 10BASE-T, 100BASE-TX or 100BASE-FX full-
duplex
• Suited for both Ethernet switch and repeater products
• ^{Digital Adaptive Equalization and Clock Recovery}
• Increases SNR by 3dB over ideal analog equalizers
• Robust performance in harsh noise environments and
over sub-standard cable
• Immune to on-chip noise and crosstalk
• Insensitive to variations in process, temperature
and voltage
24-Port 10/100BASE-T Ethernet Switch Example
BCM5208
10/100BASE-TX
QUAD-Φ^TM
Transceiver
BCM5208
10/100BASE-TX
QUAD-Φ^TM
Transceiver
MAC
MAC
MAC
MAC
MAC
MAC
MAC
MAC
Switching
Engine
Switch Module
MP Memory
Logic