CY25701_06 Datasheet, PDF (1/8 Pages) Cypress Semiconductor – Programmable High-Frequency Crystal Oscillator with Spread Spectrum (SSXO) and No-Spread Spectrum (XO) Option

CY25701
Features
Programmable High-Frequency Crystal
Oscillator with Spread Spectrum (SSXO) and
No-Spread Spectrum (XO) Option
Benefits
• Crystal Oscillator with Spread Spectrum Clock (SSXO)
• No Spread Spectrum (XO) Option
• Wide operating output clock frequency range of
10–166 MHz
• Programmable spread spectrum with nominal 31.5 kHz
modulation frequency
• Center spread: ±0.25% to ±2.0%
• Down spread: –0.5% to –4.0%
• No spread: ± 0.0%
• Integrated phase-locked loop (PLL)
• 85 ps typical cycle-to-cycle Jitter with SSCLK = 133 MHz
• 3.3V operation
• Output Enable function
• Package available in 4-Pin Ceramic LCC SMD
• Pb-free package
• Industrial Temperature from –40°C to 85°C
• Provides a wide range of spread percentages for maximum
electromagnetic interference (EMI) reduction to meet
regulatory agency electromagnetic compliance (EMC)
requirements. Reduces development and manufacturing
costs and time-to-market.
• This versatile programming feature enables the user to
switch between SSXO (with Spread) and XO (without
Spread) functions with ease.
• Internal PLL to generate up to 166 MHz output.
• Suitable for most PC, consumer, and networking
applications
• Application compatibility in standard and low-power
systems
• In-house programming of samples and prototype quantities
is available using CY3672 programming kit and CY3724
socket adapters. Production quantities are available
through Cypress’s value-added distribution partners or by
using third-party programmers from BP Microsystems, HiLo
Systems, and others.
Logic Block Diagram
RFB
CXIN
CXOUT
1
OE
PLL
with
MODULATION
CONTROL
PROGRAMMABLE
CONFIGURATION
OUTPUT
DIVIDERS
and
MUX
3
SSCLK
Pin Configuration
CY25701
4-pin Ceramic SMD
4
VDD
3
SSCLK
OE
VSS
1
2
4
VDD
2
VSS
Cypress Semiconductor Corporation
Document #: 001-07313 Rev. *A
• 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600
Revised July 25, 2006
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