CY2XF24_11 Datasheet, PDF (1/17 Pages) Cypress Semiconductor – High Performance LVPECL Oscillator with Frequency Margining – I2C Control

CY2XF24
High Performance LVPECL Oscillator with
Frequency Margining – I²C Control
Features
■ Low jitter crystal oscillator (XO)
■ Less than 1 ps typical root mean square (RMS) phase jitter
■ Differential low-voltage positive emitter coupled logic
(LVPECL) output
■ Output frequency from 50 MHz to 690 MHz
■ Frequency margining through I²C bus
■ Factory-configured or field-programmable
■ Integrated phase-locked loop (PLL)
■ Pb-free package: 5.0 × 3.2 mm leadless chip carrier (LCC)
■ Supply voltage: 3.3 V or 2.5 V
■ Commercial and industrial temperature ranges
Functional Description
The CY2XF24 is a high-performance and high-frequency XO. It
uses a Cypress-proprietary low-noise PLL to synthesize the
frequency from an integrated crystal. The output frequency can
be changed using the I²C bus serial interface, allowing easy
frequency margin testing in applications.
The CY2XF24 is available as a factory-configured device or as
a field-programmable device. Factory-configured devices are
configured for general use (see Standard and Appli-
cation-Specific Factory Configurations) or they can be customer
specific.
Logic Block Diagram
CRYSTAL
OSCILLATOR
1
SDA
2
SCL
I²C
INTERFACE
LOW-NOISE
PLL
PROGRAMMABLE
CONFIGURATION
OUTPUT
DIVIDER
4
CLK
5
CLK#
Cypress Semiconductor Corporation • 198 Champion Court
Document Number: 001-53146 Rev. *E
• San Jose, CA 95134-1709 • 408-943-2600
Revised May 6, 2011
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