BCM8422KFB Broadcom, BCM8422KFB Datasheet - Page 2

• Manufacturer Part Number: BCM8422KFB
• Manufacturer: Broadcom

Specifications of BCM8422KFB

• Operating Supply Voltage (typ): 2.5V
• Operating Supply Voltage (max): 3.3V
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

The BCM8422 is an intelligent backend Fibre Channel loop circuit that
facilitates the implementation of an intelligent bunch of disks (IBOD) on
Fibre Channel storage array systems. The BCM8422 can also be
configured as a dual retimer/repeater with EyeOpener
to drive optical and copper ports in Fibre Channel applications.
Each port of the BCM8422 can be independently configured as a retimer
or repeater operating at the Fibre Channel data rates of 1.0625 Gbps,
2.125 Gbps, and 4.25 Gbps. With an on-chip low-jitter phase locked loop
(PLL), the BCM8422 exceeds Fibre Channel signal quality
specifications.
The BCM8422 features Active-SI, which allows monitoring of the
received signal at each high-speed port to determine signal eye quality
and bit error rate (BER) for system diagnostics, fault isolation, optics
Broadcom
EyeOpener
States, certain other countries and/or the EU. Any other trademarks or trade names mentioned are the
property of their respective owners.
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2006 by BROADCOM CORPORATION. All rights reserved.
8422-PB01-R
I0
I1
®
®
, the pulse logo, Connecting everything
are among the trademarks of Broadcom Corporation and/or its affiliates in the United
04/14/06
Fref (106.25-MHz)
PLL
®
CDR
CDR
®
, the Connecting everything logo, and
®
device designed
BCM8422 Block Diagram
2-Wire Serial Interface
O V E R V I E W
Logic Control
Active SI
Active LI
PBERT
aging, and maintenance. An on-chip pattern generator/checker is
provided with internal loopback capability on each I/O port.
The BCM8422 also features Active- LI, which is a set of advanced link
integrity functions performing data generation and checking transmitted
Fibre Channel data. The combination of Active-SI and Active-LI
improves storage system’s reliability, availability, and serviceability
(RAS) with the ability to monitor and diagnose system integrity.
Data from each port can be optionally retimed using an elastic FIFO and
local crystal reference clock, eliminating jitter transfer. The BCM8422
can also be configured to operate in repeater mode for low latency.
The BCM8422 is available in a 13-mm x 13-mm BGA package.
1.2V
CDR
CDR
Power
3.3V
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.broadcom.com
O2
O3