CS2200-OT Datasheet, PDF (1/23 Pages) Cirrus Logic – Fractional-N Frequency Synthesizer

CS2200-OTP
Fractional-N Frequency Synthesizer
Features
 Delta-Sigma Fractional-N Frequency Synthesis
– Generates a Low Jitter 6 - 75 MHz Clock
Relative to 8 - 75 MHz Reference Clock
 Highly Accurate PLL Multiplication Factor
– Maximum Error Less Than 1 PPM
 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 CS2200-OTP is an extremely versatile system
clocking device that utilizes a programmable phase lock
loop. The CS2200-OTP is based on an analog PLL ar-
chitecture comprised of a Delta-Sigma Fractional-N
Frequency Synthesizer. This architecture allows for fre-
quency synthesis and clock generation from a stable
reference clock. The CS2200-OTP has many configura-
tion options which are set once prior to runtime. At
runtime there are three hardware configuration pins
available for mode and feature selection.
The CS2200-OTP is available in a 10-pin MSOP pack-
age in Commercial (-10°C to +70°C) and Automotive-D
(-40°C to +85°C) and Automotive-E (-40°C to +105°C)
grades. Customer development kits are also available
for custom device prototyping, small production pro-
gramming, and device evaluation. Please see “Ordering
Information” on page 23 for complete details.
Hardware Control
Hardware Configuration
3.3 V
Timing Reference
PLL Output
PLL Lock Indicator
8 MHz to 75 MHz
Low-Jitter Timing
Reference
http://www.cirrus.com
Phase
Comparator
Internal
Loop Filter
Voltage Controlled
Oscillator
Fractional-N
Divider
Delta-Sigma ^N
Modulator
Output to Input
Clock Ratio
Cirrus Logic Confidential
Copyright  Cirrus Logic, Inc. 2009–2015
(All Rights Reserved)
Auxiliary
Output
6 to 75 MHz
PLL Output
OCT '15
DS842F3