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CY2XP22ZXI

P1-P3P4-P6P7-P9P10-P12P13-P14
CY2XP22
Crystal to LVPECL Clock Generator
Cypress Semiconductor Corporation • 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600
Document Number: 001-10229 Rev. *H Revised November 14, 2014
Crystal to LVPECL Clock Generator
Features
■ One LVPECL output pair
■ Selectable frequency multiplication: × 2.5 or × 5
■ External crystal frequency: 25.0 MHz
■ Output frequency: 62.5 MHz or 125 MHz
■ Low RMS phase jitter at 125 MHz, using 25 MHz crystal
(1.875 MHz to 20 MHz): 0.4 ps (typical)
■ Phase noise at 125 MHz (typical):
Offset Noise Power
1 kHz –117 dBc/Hz
10 kHz –126 dBc/Hz
100 kHz –131 dBc/Hz
1 MHz –131 dBc/Hz
■ Pb-free 8-pin TSSOP package
■ Supply voltage: 3.3 V or 2.5 V
■ Commercial and Industrial temperature range
Functional Description
The CY2XP22 is a PLL (Phase Locked Loop) based high
performance clock generator that uses an external reference
crystal. It is specifically targeted at FibreChannel and Gigabit
Ethernet applications. It produces a selectable output frequency
that is 2.5 or 5 times the crystal frequency. With a 25 MHz crystal,
the user can select either a 62.5 MHz or 125 MHz output. It uses
Cypress’s low noise VCO technology to achieve less than 1 ps
typical RMS phase jitter. The CY2XP22 has a crystal oscillator
interface input and one LVPECL output pair.
For a complete list of related documentation, click here.
Logic Block Diagram
OUTPUT
DIVIDER
F_SEL
CRYSTAL
OSCILLATOR
CLK#
LO W -N OIS E
PLL
CLK
XOUT
XIN
Ext ernal
Crystal
CY2XP22
Document Number: 001-10229 Rev. *H Page 2 of 14
Contents
Pinouts ..............................................................................3
Pin Definitions .................................................................. 3
Frequency Table ...............................................................3
Absolute Maximum Conditions ....................................... 4
Operating Conditions ....................................................... 4
DC Electrical Characteristics ..........................................5
AC Electrical Characteristics ..........................................6
Recommended Crystal Specifications ...........................6
Parameter Measurements ................................................7
Application Information ................................................... 9
Power Supply Filtering Techniques ............................. 9
Termination for LVPECL Output ..................................9
Crystal Interface ..........................................................9
Ordering Information ...................................................... 10
Ordering Code Definitions ......................................... 10
Package Drawing and Dimensions ............................... 11
Acronyms ........................................................................ 12
Document Conventions ................................................. 12
Units of Measure ....................................................... 12
Document History Page ................................................. 13
Sales, Solutions, and Legal Information ...................... 14
Worldwide Sales and Design Support ....................... 14
Products .................................................................... 14
PSoC® Solutions ...................................................... 14
Cypress Developer Community ................................. 14
Technical Support ..................................................... 14
CY2XP22
Document Number: 001-10229 Rev. *H Page 3 of 14
Pinouts
Figure 1. 8-pin TSSOP pinout
1
2
36
7
8
XOUT
XIN F_SEL
VSS
VDD
CLK#
45
VDD
CLK
Pin Definitions
8-pin TSSOP
Pin Number Pin Name I/O Type Description
1, 8 VDD Power 3.3 V or 2.5 V power supply
2 VSS Power Ground
3, 4 XOUT, XIN XTAL output and input Parallel resonant crystal interface
5 F_SEL CMOS input Frequency Select: see Frequency Table
6,7 CLK#, CLK LVPECL output Differential clock output
Frequency Table
Inputs
PLL Multiplier Value Output Frequency (MHz)
Crystal Frequency (MHz) F_SEL
25 0 5 125
1 2.5 62.5
P1-P3P4-P6P7-P9P10-P12P13-P14

CY2XP22ZXI

Mfr. #:
Buy CY2XP22ZXI
Manufacturer:
Cypress Semiconductor
Description:
Phase Locked Loops - PLL CRYSTAL TO LVPECL CLOCK GENERATOR
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
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