VITESSE

SEMICONDUCTOR CORPORATION

Multi-Rate SONET/SDH

Clock and Data Recovery IC

Data Sheet

VSC8122

G52228-0, Rev 4.1

Page 13

01/05/01

© VITESSE SEMICONDUCTOR CORPORATION • 741 Calle Plano • Camarillo, CA 93012

Tel: (800) VITESSE • FAX: (805) 987-5896 • Email: prodinfo@vitesse.com

Internet: www.vitesse.com

Table 11: Maximum Ambient Air Temperature Without Heatsink

Note that ambient air temperature varies throughout the system based on the positioning and magnitude of

heat sources and the direction of air flow.

Ordering Information

The order number for this product is formed by a combination of the device number, and package type.

Airflow

Still air

47.2

100 lfpm

54.0

200 lfpm

57.4

400 lfpm

61.8

600 lfpm

64.6

VSC8122 QP

Device Type

VSC8122: OC-3/12/48 (STM-1/4/16)

Package Style

QP: 64-pin, 10 x 10 mm PQFP

Clock and Data Recovery

Notice

Vitesse Semiconductor Corporation (“Vitesse”) provides this document for informational purposes only. All information in this document, includ-

ing descriptions of features, functions, performance, technical specifications and availability, is subject to change without notice at any time. Noth-

ing contained in this document shall be construed as extending any warranty or promise, express or implied, that any Vitesse product will be

available as described or will be suitable for or will accomplish any particular task.

Vitesse products are not intended for use in life support appliances, devices or systems. Use of a Vitesse product in such applications without writ-

ten consent is prohibited.