 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| BCM8422 (R) 4-CHANNEL 1/2/4G FIBRE CHANNEL INTELLIGENT LOOP CIRCUIT/ DUAL RETIMER/REPEATER WITH EYEOPENER(R) FEATURES * 4-channel loop circuit to configure fibre channel hard disk drives in FC-AL configurations * Dual-channel retimer/repeater with EyeOpener exceeding fibre channel signalling specifications * Multi-rate support for new and legacy systems * Active Signal Integrity (Active-SI) monitors physical layer and Active Link Integrity (Active-LI) monitors link-layer performance * Programmable transmit output levels and receive LOS detection * High-performance receive equalization and programmable transmit pre-emphasis * Per channel link LED drivers for valid fibre channel frames and speed detection * Developed using advanced 0.13u CMOS process technology SUMMARY OF BENEFITS * Low-cost back end solution for fibre channel disk drive arrays * Guarantees jitter and bit-error-rate performance on optical and fiber links * Supports legacy 1.0625G and 2.125G applications and new 4.25G data rates off a single reference clock frequency * On-chip intelligent diagnostics provides insight to the signal quality with detection and recovery mechanisms on each high-speed link * Optimizes channel performance for lower power and signal detection through on-chip 2-wire control interface * Transmits and receives over long distances of copper cables or backplanes with 16 levels of programmable pre-emphasis * Provides visual indications on PCBs for link status and 1.0625G, 2.125G, or 4.25G data rate transmissions * Low power design of ~1.5W with small footprint package in a 13 mm x 13 mm BGA, with 1 mm ball pitch BCM8422 Diagram Host 1 Loop 1 RDN/P0 RDN/P1 TDN/P0 TDN/P1 BCM8422 4-Channel Loop Circuit Host 2 RDN/P2 Loop 2 RDN/P3 BCM8422 TDN/P2 Dual EyeOpener Mode TDN/P3 OVERVIEW I1 O1 CDR Active SI Active LI O2 CDR I2 I0 O0 CDR PBert O3 CDR PLL Fref (106.25 MHz) I3 Logic Control 2-Wire Serial Interface Power 1.2v 3.3v The BCM8422 is an intelligent back end Fibre Channel loop circuit that facilitates the implementation of an IBOD (Intelligent Bunch of Disks) on Fibre Channel Storage Array Systems. The BCM8422 can also be configured as a dual Retimer/Repeater with EyeOpener(R) device designed 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 lowjitter phase-locked loop (PLL), the BCM8422 exceeds Fibre Channel signal quality specifications. The BCM8422 features Active Signal Integrity (Active-SI), which allows monitoring of the received signal at each highspeed port to determine signal eye quality and bit error rate (BER) for system diagnostics, fault isolation, optics 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 Link Integrity (Active- LI), which is a set of advance link integrity functions performing data generation and checking on 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 utilizing 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. Broadcom(R), the pulse logo, and Connecting everything(R) 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. (R) BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013 (c) 2004 by BROADCOM CORPORATION. All rights reserved. 8422-PB00-R 02/17/04 Phone: 949-450-8700 Fax: 949-450-8710 E-mail: info@broadcom.com Web: www.broadcom.com |
Price & Availability of BCM8422
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |