CY25701FJXCT

CY25701FJXCT Datasheet


CY25701JXC/FJXC

Part Datasheet
CY25701FJXCT CY25701FJXCT CY25701FJXCT (pdf)
Related Parts Information
CY25701FJXC CY25701FJXC CY25701FJXC
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CY25701JXC/FJXC

Programmable High-Frequency Crystal Oscillator with Spread Spectrum SSXO and No-Spread Spectrum XO Option
• Crystal Oscillator with Spread Spectrum Clock SSXO
• No-Spread Spectrum XO Option
• Wide operating output clock frequency range of

MHz
• Programmable spread spectrum with nominal 31.5-kHz
modulation frequency
• Center spread to
• Down spread to
• No spread ±
• Integrated phase-locked loop PLL
• 85 ps typical cycle-to-cycle Jitter with SSCLK = 133MHz
• 3.3V operation
• Output Enable function
• Package available in 4-pin Plastic JE
• Pb-free package
• Provides 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 users 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 the CY3672 programming kit and CY3613 JEC package socket adapters. Production quantities are available through Cypress’ value-added distribution partners or by using third-party programmers from BP Microsystems, HiLo Systems, and others.

Logic Block Diagram

CXIN CXOUT 1 OE

PLL with MODULATION CONTROL

PROGRAMMABLE CONFIGURATION

OUTPUT DIVIDERS
and MUX

Pin Configuration

CY25701JXC/FJXC 4-pin Plastic JE
3 SSCLK
1 OE 2 VSS

VDD 4 SSCLK 3
4 VDD
2 VSS

Cypress Semiconductor Corporation
• 198 Champion Court
• San Jose, CA 95134-1709
• 408-943-2600
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CY25701JXC/FJXC

Pin Definition

Pin 1 2 3 4

Name OE VSS SSCLK VDD

Description Output Enable pin Active HIGH. If OE = 1, SSCLK is enabled. Power supply ground. Spread spectrum clock output with or without spread . 3.3V power supply.

Functional Description

Programming Description

The CY25701JXC/FJXC is a Spread Spectrum Crystal Oscillator SSXO IC used for the purpose of reducing EMI found in today’s high-speed digital electronic systems.

The device uses a Cypress proprietary PLL and Spread Spectrum Clock SSC technology to synthesize and modulate the frequency of the embedded input crystal. By frequency modulating the clock, the measured EMI at the fundamental and harmonic frequencies are greatly reduced. This reduction in radiated energy can significantly reduce the cost of complying with regulatory agency EMC requirements and improve time-to-market without degrading system performance.

The CY25701JXC/FJXC uses a programmable configuration memory array to synthesize output frequency and spread%.

The spread% is programmed to either center spread or down spread with various spread percentages. The range for center spread is from to The range for down spread is from to Contact the factory for smaller or larger spread% amounts if required. Refer to Table 2 for spread selection and no-spread values.

The frequency modulated SSCLK output can be programmed from MHz.

The CY25701JXC/FJXC is available in a 4-pin plastic package with operating temperature range of to 70°C.

Field/Factory-Programmable CY25701JXC/FJXC

Field/Factory programming is available for samples and manufacturing by Cypress and its distributors. All requests must be submitted to the local Cypress Field Application Engineer FAE or sales representative. Once the request has been processed, you will receive a new part number, samples, and data sheet with the programmed values. This part number will be used for additional sample requests and production orders.
Ordering Information

Part Number[5,6]

Package description

Product Flow

Lead-free Pb-free
4-Lead Plastic JE SMD

Commercial, to 70°C
4-Lead Plastic JE SMD - Tape and Reel

Commercial, to 70°C

CY25701FJXC
4-Lead Plastic JE SMD

Commercial, to 70°C

CY25701FJXCT
4-Lead Plastic JE SMD - Tape and Reel

Commercial, to 70°C

The “Informational Graphs” are meant to convey the typical performance levels. No performance specifications is implied or guaranteed. Refer to the tables on pages 4 and 5 for device specifications.
“ZZZ” denotes the assigned product dash number. This number will be assigned by factory after the output frequency and spread percent programming data is received from the customer.
“FJXC” suffix is used for products programmed in field by Cypress distributors.

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Package Drawings and Dimensions
4-Lead 10.2x5.6mm JEC JE04A

MAX 4

CY25701JXC/FJXC

DIMENSIONS IN MILLIMETERS REFERENCE JEDEC N/A PKG. WEIGHT gms

RECOMMENDED SOLDERING PATTERN
51-85204-*A

All product and company names mentioned in this document are the trademarks of their respective holders.

Page 6 of 7

Cypress Semiconductor Corporation, The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use
of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be
used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its
products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress
products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.
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CY25701JXC/FJXC

Document History Page

Document Title CY25701JXC/FJXC Programmable High-Frequency Crystal Oscillator with Spread Spectrum SSXO and No-Spread Spectrum XO Option Document Number 38-07684

Orig. of ECN NO. Issue Date Change

Description of Change
224108 See ECN RGL New data sheet
258974 See ECN RGL Corrected the product suffix lead-free in the ordering information table

Added note 4
279379 See ECN RGL Added ordering part numbers
392505 See ECN RGL Added 4pin LCC SMD package
414085 See ECN RGL Added Spread OFF XO programming function

Edited CY3724 socket adapter
436961 See ECN RGL Changed the Marketing part number from CY25701 to CY25701JXC/FJXC

Removed all Ceramic Package references

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More datasheets: 5082-2800#T50 | 1N5712 | 5082-2811#T50 | 1N5712#T25 | 5082-2835 | 5082-2811 | 5082-2810 | 5082-2835#T50 | 1N5711 | TUF2AAPE


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Datasheet ID: CY25701FJXCT 507709