DSA400 datasheet(1/20 Pages) MICROCHIP

Part #	DSA400

Description	Configurable Four Output, Low Jitter Clock Generator for Automotive

PDF	20 Pages

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Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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 2020 Microchip Technology Inc.

DS20006356A-page 1

DSA400

Features

• AEC-Q100 Automotive Qualified

• Low RMS Phase Jitter: <1 ps (typ.)

• Complies with PCIe Gen1/2/3/4 Common Clock

Spec

• High Stability: ±25 ppm, ±50 ppm

• Wide Temperature Range:

- Automotive Grade 2: –40°C to +105°C

- Automotive Grade 3: –40°C to +85°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

Applications

• Automotive Infotainment

• Automotive ADAS

• Autonomous Driving

• In-Vehicle Network

General Description

The DSA400 is a four output 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.

The four output DSA400 MEMS oscillators are

excellent choices for use as clock references in

automotive applications in which small size, low power

consumption, and long-term reliability are paramount.

The DSA400 is AEC-Q100 qualified.

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 DSA400 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 DSA400 is packaged in a 20-pin QFN (5 mm x

3.2 mm) and is available in extended commercial and

industrial temperature grades.

The DSA400 is a highly configurable device and is

factory programmed to meet the customer’s needs.

Microchip’s ClockWorks Configurator must be used to

choose the necessary options, create the final part

number, data sheet, and order samples.

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 Clock Generator for Automotive

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