DSC2311 datasheet(1/18 Pages) MICROCHIP

Part #	DSC2311

Description	Crystal-less??Configurable Two-Output Clock Generator

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Manufacturer	MICROCHIP [Microchip Technology]

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 2016 Microchip Technology Inc.

DS20005611A-page 1

DSC2311

Features

• Two Simultaneous CMOS Outputs

- Output 1 Range: 2.3 MHz to 170 MHz

- Output 2 Range: 2.3 MHz to 170 MHz

• Low RMS Phase Jitter: <1 ps (typ.)

• High Stability: ±25 ppm, ±50 ppm

• Wide Temperature Range

- Automotive: –40°C to +125°C

- Ext. Industrial –40°C to +105°C

- Industrial –40°C to +85°C

- Ext. Commercial –20°C to +70°C

• High Supply Noise Rejection: –50 dBc

• High Shock and Vibration Immunity

- Qualified to MIL-STD-883

• High Reliability

- 20x higher MTBF than crystal-based clock

generator designs

• Supply Range of 2.25V to 3.6V

• Lead Free and RoHS-Compliant

Applications

• Consumer Electronics

• Camera and Imaging Modules

• Home Automation

• Industrial and Power Conversion

• Mobile Communications, Internet, and Sensor

Devices

• Solid State, Hard Drive, and Flash Drive Storage

General Description

The DSC2311 is a crystal-less™ clock generator that is

factory-configurable to simultaneously output two

separate frequencies from 2.3 MHz to 170 MHz. The

clock generator uses proven silicon MEMS technology

to provide low jitter and high frequency stability across

a wide range of supply voltages and temperatures. By

eliminating the external quartz crystal, crystal-less

clock generators significantly enhance reliability and

accelerate product development, while meeting

stringent clock performance criteria for a variety of

consumer electronics, communications, and storage

applications.

DSC2311 has an Output Enable/Disable feature that

allows it to disable the outputs when OE is low. The

device is available in a space-saving 6-pin 2.5 mm x

2.0 mm crystal-less VDFN package that uses only a

single external bypass capacitor. This requires a PCB

footprint equivalent to that of a 1.0 mm x 1.0 mm

crystal-based clock generator.

Block Diagram

Control Circuitry

MEMS

PLL

Output

Control

and

Divider

F

OUT2

F

OUT1

OE

Crystal-less™ Configurable Two-Output Clock Generator

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