AMCC Introduces Industry's First OC-48 Multi-Rate Transceiver With 16-Bit Differential LVPECL Interface.

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SAN DIEGO--(BUSINESS WIRE)--March 28, 2000

With the Introduction of the S3059, AMCC Now Offers an

Unparalleled Breadth of OC-48 Transceiver Solutions

Applied Micro Circuits Corp. (AMCC) (NASDAQ:AMCC), the leader in high-bandwidth silicon connectivity solutions for the world's optical networks, Tuesday announced the S3059, the industry's first 16-bit differential transceiver with multi-rate capability.

The fully integrated serialization/deserialization device features a 16-bit differential LVPECL data path and supports OC-3, OC-12, OC-48 and Gigabit Ethernet data rates. The S3059 is ideal for use in SONET/SDH/ATM-based transmission systems and Dense Wavelength Division Multiplexing (DWDM) equipment. The device provides excellent design margin to Bellcore and ITU-T specifications. The differential interface of the S3059 works seamlessly with available OC-48 framer products including AMCC's Missouri, Amazon and Rhine, thus reducing component cost, board space and simplifying the design effort. The addition of the S3059 extends AMCC's family of OC-48 transceiver solutions (8-bit LVDS S3046, 16-bit single-ended LVPECL S3057, and 4-bit LVDS S3457), surpassing any other offering of OC-48 transceivers for the designer's high-speed optical fiber transmission needs.

"The introduction of the S3059 provides AMCC's customers with an unmatched selection of robust OC-48 transceiver solutions," said Ken Prentiss, AMCC's director of marketing for telecom products. "This is the first single-chip solution that directly interfaces to OC-48 framer products, without the need for external components. By expanding our OC-48 transceiver family, AMCC continues to set the standard in offering complete and integrated high-speed interface solutions for our customers."

Utilizing a single 3.3V supply, the S3059 offers the industry's best combination of a low jitter LVPECL interface and low power. It provides diagnostic loopback (transmitter to receiver) and line timing (receiver to transmitter) modes, which are capable of remaining active simultaneously. The S3059 also incorporates an internal FIFO (First In, First Out) to decouple transmit clocks, and an on-chip high frequency phase-locked loop (PLL) for clock generation. The PLL on-chip clock synthesis function enables the utilization of a slower external transmit clock reference. The reference clock features a frequency of 155.52 MHz, in support of existing clock schemes. The S3059 performs all necessary serial-to-parallel and parallel-to-serial conversions and supports interface to LVPECL and LVTTL logic.

Pricing and Availability

The S3059 is currently sampling with production release scheduled for next quarter. The device, packaged in a compact 218-pin TBGA, is priced at $145 in quantities of 1,000.

About AMCC

AMCC designs, develops, manufactures and markets high-performance, high-bandwidth silicon solutions for the world's optical networks. The company utilizes a combination of high-frequency, mixed-signal design expertise and multiple silicon process technologies to offer IC products for the telecommunications market that address the SONET/SDH and ATM transmission standards and for the data communications markets that address the Gigabit Ethernet, ATM and Fibre Channel transmission standards. AMCC's core technologies also address ATE and high-speed computing needs. AMCC's corporate headquarters and wafer fabrication facilities are located in San Diego. Sales and consulting engineering offices are located throughout the world. For further information regarding AMCC and its products, write: Marketing Communication Department, AMCC, 6290 Sequence Drive, San Diego, Calif., 92121-4358; or call 800/755-AMCC (800/755-2622) or 858/450-9333; or fax [phone]; or email [e-mail]; or visit our Web site at http://www.amcc.com.

Forward Looking Statements:

Except for historical information contained herein, the matters set forth in this news release are forward-looking statements that are subject to certain risks and uncertainties, including, but not limited to, "The Factors That May Affect Future Results" detailed in the company's Annual Report on Form 10-K for the year ended March 31, 1999, and the company's other filings with the Securities and Exchange Commission. Actual results could differ materially, as a result of such factors, from those set forth in the forward-looking statements.

Product photos, datasheets and application notes are available upon request. AMCC is a registered trademark of Applied Micro Circuits Corp.

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