DSC400 datasheet(1/20 Pages) MICROCHIP

номер детали	DSC400

подробное описание детали	Configurable Four Output, Low Jitter Crystal-less??Clock Generator

PDF	20 Pages

Scroll/Zoom	100%

производитель	MICROCHIP [Microchip Technology]

домашняя страница	http://www.microchip.com

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 2016 Microchip Technology Inc.

DS20005612A-page 1

DSC400

Features

• Low RMS Phase Jitter: <1 ps (typ.)

• High Stability: ±25 ppm, ±50 ppm

• Wide Temperature Range:

- Industrial –40°C to +85°C

- Ext. Commercial –20°C to +70°C

• High Supply Noise Rejection: –50 dBc

• Four Format-Configurable Outputs:

- LVPECL, LVDS, HCSL, LVCMOS

• Available Pin-Selectable Frequency Table

- 1 Pin per Bank for 2 Frequency Sets

• Wide Frequency Range:

- 2.3 MHz – 460 MHz

• 20-Pin QFN Footprint (5.0 mm x 3.2 mm)

• Excellent Shock and Vibration Immunity

• High Reliability

- 20x better MTF than quartz-based devices

• Wide Supply Range of 2.25V to 3.6V

• Lead Free and RoHS-Compliant

• AEC-Q100 Automotive Qualified

Applications

• Communications and Networks

• Ethernet

- 1G, 10GBASE-T/KR/LR/SR, and FCoE

• Storage Area Networks

- SATA, SAS, Fibre Channel

• Passive Optical Networks

- EPON, 10G-EPON, GPON, 10G-PON

• HD/SD/SDI Video and Surveillance

• Automotive

• Media and Video

• Embedded and Industrial

General Description

The DSC400 is a four output crystal-less™ clock

generator. It utilizes proven PureSilicon™ MEMS

technology to provide excellent jitter and stability while

incorporating additional device functionality.

The nominal frequencies of the outputs can be identical

or independently derived from common PLLs.

Each output may be configured independently to

support a single-ended LVCMOS interface or a

differential interface. Differential options include

LVPECL, LVDS, or HCSL.

The DSC400 provides two independent select lines for

choosing

between

two

sets

of pre-configured

frequencies per bank. It also has two OE pins to allow

for enabling and disabling outputs.

The DSC400 is packaged in a 20-pin QFN (5 mm x

3.2 mm) and is available in extended commercial and

industrial temperature grades.

Block Diagram

CLK0+

BANK 2

OUTPUT

CONTROL

AND

DIVIDERS

CONTROL

CIRCUITRY

MEMS

PLL

OE1

OE2

FSB1

FSB2

BANK 1

CLK0-

CLK3+

CLK3-

CLK1+

CLK1-

CLK2+

CLK2-

PLL

Configurable Four Output, Low Jitter Crystal-less™ Clock Generator

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