VSC8185(2002) データシートの表示（PDF） - Vitesse Semiconductor

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VSC8185
(Rev.:2002)

11.5-12.5Gb/s 16:1 Multiplexer and Clock Generator with High-Speed Clock Output

Vitesse Semiconductor 

VSC8185

11.5-12.5Gb/s 16:1 Multiplexer and Clock Generator with High-Speed Clock Output

GENERAL DESCRIPTION:

The VSC8185 consists of a 16:1 Multiplexer and a clock

generator for use in SONET STS-192/SDH STM-64 systems.

The 16:1 Multiplexer accepts 16 parallel low voltage

differential swing (LVDS) inputs (D[0:15]±) and (PARITY±) at

a data rate of 718.8 to 781.3 Mb/s. This parallel data stream

is then serialized into a 11.5Gb/s to 12.5Gb/s output

(DOUT±). The clock generator creates the 11.5GHz to 12.5GHz clock signal used

to re-time the transmitted serialized data. The clock generator requires a 180-

195MHz or 719-781MHz LVPECL reference clock input (REFCK±). To ease timing

constraints on the parallel interface, a 16 bit wide FIFO is included. A high

speed clock output (COUT±) is provided that is synchronized to the high speed

serial data output. A divide-by-16 or divide-by-64 LVDS clock output (CK16_64±)

is available for use as a clock input to the data source of the parallel inputs

(D[0:15]±) and (PARITY±). Additional features include parity bit (PARITY±) that

is clocked in with the 16-bit parallel data. Bit Order Swap (BITORDER) and Data

Polarity Invert (DINVERT). To assist in monitoring device operation a Loss-of-

Lock (LOLN) alarm and internal temperature diode are included. The device is

packaged in a modified 90-ball, Ball Grid Array (BGA).

VSC8185 BLOCK DIAGRAM:

AUTORSTN

RESETN

DINVERT

BITORDER

PARSENSE

PARITY+

PARITY-

D0+

D0-

D1+

D1-

D14+

D14-

D15+

D15-

DCK+

DCK-

CKSEL

REFSEL

REFCK+

REFCK-

DELAY

RST

OVR

DELAY

OVERFLOW

DINVALID+

DINVALID-

FIFO

16:1

DOUT+

DOUT-

COUT+

COUT-

CK/16

TIMING

GENERATOR

11.5G-12.5G

PLL

CK16_64+

CK16_64-

719MHz/180MHz

LOSS

OF

LOCK

DETECT

LOLN

NOREFN

SPECIFICATIONS:

11.5 to 12.5Gb/s Continuous Operation

Data Output Voltage Swing: 500 mV (min)

Data Output Rise/Fall: 25 ps (Typ)

High Speed Clock Voltage Swing: 500 mV (min)

+/- 15 ps Clock-to-Data Skew Range Over Temperature

Supply Voltage: 3.3V (Typ)

Operating Temperature Range: 0°C to +85°C (case)

15x15mm Low Profile 90 Ball TBGA (Taped BGA) Package

Total Power Dissipation: 2W

Your Partner for Success.

For more information on Vitesse Products visit the Vitesse web site

at www.vitesse.com or contact Vitesse Sales at (800) VITESSE

or sales@vitesse.com

©2002 Vitesse Semiconductor Corporation

741 Calle Plano

Camarillo, CA 93012

Tel: 805.388.3700

Fax: 805.388.7565

www.vitesse.com

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