CY22393 Datasheet, PDF (1/17 Pages) Cypress Semiconductor – Three-PLL Serial-Programmable Flash-Programmable Clock Generator

CY22393
CY22394
CY22395
Three-PLL Serial-Programmable
Flash-Programmable Clock Generator
Features
Benefits
• Three integrated phase-locked loops (PLLs)
• Ultra wide divide counters (8-bit Q, 11-bit P, and 7-bit post
divide)
• Improved linear crystal load capacitors
• Flash programmability with external programmer
• Field-programmable
• Low jitter, high accuracy outputs
• Power management options (Shutdown, OE, Suspend)
• Configurable crystal drive strength
• Frequency select via three external LVTTL inputs
• 3.3V operation
• 16-pin TSSOP package
• CyClocksRT™ software support
Advanced Features
• I²C serial interface for in-system configurability
• Configurable output buffer
• Digital VCXO
• High frequency LVPECL output (CY22394 only)
• 3.3/2.5V outputs (CY22395 only)
• Generates up to three unique frequencies on up to six
outputs from an external source.
• Allows for 0 ppm frequency generation and frequency
conversion in the most demanding applications.
• Improves frequency accuracy over temperature, age,
process, and initial ppm offset.
• Nonvolatile programming enables easy customization,
ultra-fast turnaround, performance tweaking, design timing
margin testing, inventory control, lower part count, and more
secure product supply. In addition, any part in the family can
be programmed multiple times, which reduces
programming errors and provides an easy upgrade path for
existing designs.
• In-house programming of samples and prototype quantities
is available using the CY3672 FTG Development Kit.
Production quantities are available through Cypress
Semiconductor’s value-added distribution partners or by
using third-party programmers from BP Microsystems, HiLo
Systems, and others.
• Performance suitable for high-end multimedia, communica-
tions, industrial, A/D converters, and consumer applica-
tions.
• Supports numerous low power application schemes and
reduces electromagnetic interference (EMI) by allowing
unused outputs to be turned off.
• Adjust crystal drive strength for compatibility with virtually
all crystals.
• 3-bit external frequency select options for PLL1, CLKA, and
CLKB.
• Industry standard packaging saves on board space.
• Easy to use software support for design entry.
• I²C interface allows in-system programming into volatile
configuration memory. All frequency settings can be
changed, providing literally millions of frequency options.
• Adjust output buffer strength to lower EMI or improve timing
margin.
• Fine tune crystal oscillator frequency by changing load
capacitance.
• Differential output up to 400 MHz.
• Provides interfacing option for low voltage parts.
Cypress Semiconductor Corporation
Document #: 38-07186 Rev. *C
• 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600
Revised March 13, 2007
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