CDK-2000-CLK datasheet(1/28 Pages) CIRRUS

Part #	CDK-2000-CLK

Description	Fractional-N Clock Multiplier

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Manufacturer	CIRRUS [Cirrus Logic]

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Preliminary Product Information This document contains information for a new product.

Cirrus Logic reserves the right to modify this product without notice.

Fractional-N Clock Multiplier

Features

Clock Multiplier / Jitter Reduction

– Generates a Low Jitter 6 - 75 MHz Clock

from a Jittery or Intermittent 50 Hz to

30 MHz Clock Source

Highly Accurate PLL Multiplication Factor

– Maximum Error Less Than 1 PPM in High-

Resolution Mode

One-Time Programmability

– Configurable Hardware Control Pins

– Configurable Auxiliary Output

Flexible Sourcing of Reference Clock

– External Oscillator or Clock Source

– Supports Inexpensive Local Crystal

Minimal Board Space Required

– No External Analog Loop-filter

Components

General Description

The CS2100-OTP is an extremely versatile system

clocking device that utilizes a programmable phase lock

loop. The CS2100-OTP is based on a hybrid analog-

digital PLL architecture comprised of a unique combina-

tion

of

a

Delta-Sigma

Fractional-N

Frequency

Synthesizer and a Digital PLL. This architecture allows

for generation of a low-jitter clock relative to an external

noisy synchronization clock with frequencies as low as

50 Hz. The CS2100-OTP has many configuration op-

tions which are set once prior to runtime. At runtime

there are three hardware configuration pins available for

mode and feature selection.

The CS2100-OTP is available in a 10-pin MSOP pack-

age in Commercial (-10°C to +70°C) grade. Customer

development kits are also available for custom device

prototyping, small production programming, and device

evaluation. Please see “Ordering Information” on

page 28 for complete details.

Hardware Configuration

Auxiliary

Output

6 to 75 MHz

PLL Output

Frequency Reference

3.3 V

Hardware

Control

8 MHz to 75 MHz

Low-Jitter Timing

Reference

Fractional-N

Frequency Synthesizer

Digital PLL &

Fractional N Logic

Output to Input

Clock Ratio

N

Timing Reference

PLL Output

Lock Indicator

50 Hz to 30 MHz

Frequency

Reference

JUN '08

DS841PP1

CS2100-OTP

Similar Part No. - CDK-2000-CLK

Manufacturer	Part #	Datasheet	Description
Cirrus Logic	CDK-2000-CLK	447Kb / 36P	Fractional-N Clock Synthesizer & Clock Multiplier
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	CDK-2000-CLK	412Kb / 32P	Fractional-N Clock Multiplier
	CDK-2000-CLK	326Kb / 26P	Fractional-N Frequency Synthesizer
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CDK-2000-CLK Datasheet(PDF) 1 Page - Cirrus Logic

CDK-2000-CLK Datasheet(HTML) 1 Page - Cirrus Logic

Similar Part No. - CDK-2000-CLK

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