CY7B9910-7SXCT

CY7B9910-7SXCT Datasheet


CY7B9910 CY7B9920

Part Datasheet
CY7B9910-7SXCT CY7B9910-7SXCT CY7B9910-7SXCT (pdf)
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CY7B9910-7SXC CY7B9910-7SXC CY7B9910-7SXC
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CY7B9910 CY7B9920

Low Skew Clock Buffer
• All Outputs Skew <100 ps typical 250 max.
• 15 to 80 MHz Output Operation
• Zero Input to Output Delay
• 50% Duty Cycle Outputs
• Outputs drive 50Ω terminated lines
• Low Operating Current
• 24-pin SOIC Package
• Jitter <200 ps Peak to Peak, <25 ps RMS

Functional Description

The CY7B9910 and CY7B9920 Low Skew Clock Buffers offer low skew system clock distribution. These multiple output clock drivers optimize the timing of high performance computer systems. Each of the eight individual drivers can drive terminated transmission lines with impedances as low as They deliver minimal and specified output skews and full swing logic levels CY7B9910 TTL or CY7B9920 CMOS . The completely integrated PLL enables “zero delay” capability. External divide capability, combined with the internal PLL, allows distribution of a low frequency clock that is multiplied by virtually any factor at the clock destination. This facility minimizes clock distribution difficulty while allowing maximum system clock speed and flexibility.

Block Diagram Description

Phase Frequency Detector and Filter

The Phase Frequency Detector and Filter blocks accept inputs from the reference frequency REF input and the feedback FB input and generate correction information to control the frequency of the Voltage Controlled Oscillator VCO . These blocks, along with the VCO, form a Phase Locked Loop PLL that tracks the incoming REF signal.

The VCO accepts analog control inputs from the PLL filter block and generates a frequency. The operational range of the VCO is determined by the FS control pin.

Logic Block Diagram

TEST

FB REF

PHASE

FREQ FILTER DET

VOLTAGE CONTROLLED OSCILLATOR

FS Q0
• San Jose, CA 95134-1709
• 408-943-2600
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CY7B9910 CY7B9920

Pinouts

Figure Pin Configuration 24-Pin 300-Mil Molded SOIC S13

VCCQ FS NC

VCCQ VCCN

Q1 GND

Q2 Q3 VCCN

SOIC Top View
6 7B9910 19 7 7B9920 18

GND TEST

GND VCCN Q7 Q6 GND Q5 Q4 VCCN FB

Table Pin Definition

Signal Name

FB FS[1,2,3] TEST Q[0..7] VCCN VCCQ GND

I O PWR

Description Reference frequency input. This input supplies the frequency and timing against which all functional variations are measured. PLL feedback input typically connected to one of the eight outputs . Three level frequency range select. Three level select. See TEST MODE. Clock outputs. Power supply for output drivers. Power supply for internal circuitry. Ground.
Ordering Information

Accuracy ps 500

Pb-free 250
Ordering Code

Package Type
24-Pin Small Outline IC 24-Pin Small Outline IC - Tape and Reel 24-Pin Small Outline IC
24-Pin Small Outline IC 24-Pin Small Outline IC - Tape and Reel 24-Pin Small Outline IC 24-Pin Small Outline IC - Tape and Reel 24-Pin Small Outline IC 24-Pin Small Outline IC - Tape and Reel 24-Pin Small Outline IC 24-Pin Small Outline IC - Tape and Reel

Operating Range

Commercial Industrial

Commercial Industrial Commercial

Package Diagram

Figure 24-Pin 300-Mil Molded SOIC S13

NOTE :

PIN 1 ID

JEDEC STD REF MO-119 BODY LENGTH DIMENSION DOES NOT INCLUDE MOLD PROTRUSION/END FLASH,BUT

DOES INCLUDE MOLD MISMATCH AND ARE MEASURED AT THE MOLD PARTING LINE.

MOLD PROTRUSION/END FLASH SHALL NOT EXCEED in mm PER SIDE

DIMENSIONS IN INCHES

PACKAGE WEIGHT 0.65gms

MIN. MAX.

SEATING PLANE

PART # S24.3 STANDARD PKG. SZ24.3 LEAD FREE PKG.

TYP.
51-85025 *D

Note Not recommended for new design. New designs should use Pb-free devices.

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CY7B9910 CY7B9920

Document History Page

Document Title CY7B9910/CY7B9920 Low Skew Clock Buffer Document Number 38-07135

Orig. of Change

Submission Date

Description of Change
110244
10/28/01 Change from Specification number 38-00437 to 38-07135
1199925 DPF/AESA See ECN Added Pb-free parts in Ordering Information

Added Note 20 Not recommended for the new design
1353343 AESA

See ECN Change status to final
2750166 TSAI
08/10/09 Post to external web
2761988 CXQ
09/10/09 Fixed typo from 100W resistor to 100Ω resistor.

Added “Not recommended for new designs” note to Pb devices.

Fixed incorrect instances of auto-replacement of “lead” to “Pb”.
2896073 CXQ
03/19/10 Removed inactive parts from ordering information table

Updated package diagram

Sales, Solutions, and Legal Information

Worldwide Sales and Design Support

Cypress maintains a worldwide network of offices, solution centers, manufacturer’s representatives, and distributors. To find the office closest to you, visit us at Cypress Locations.

Products Automotive Clocks & Buffers Interface Lighting & Power Control

Memory Optical & Image Sensing PSoC Touch Sensing USB Controllers Wireless/RF
cypress.com/go/automotive cypress.com/go/clocks
cypress.com/go/interface cypress.com/go/powerpsoc
cypress.com/go/plc cypress.com/go/memory
cypress.com/go/image cypress.com/go/psoc cypress.com/go/touch cypress.com/go/USB
cypress.com/go/wireless

PSoC Solutions psoc.cypress.com/solutions PSoC 1 | PSoC 3 | PSoC 5

Cypress Semiconductor Corporation, 2001-2010.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.

Any Source Code software and/or firmware is owned by Cypress Semiconductor Corporation Cypress and is protected by and subject to worldwide patent protection United States and foreign , United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of, and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as specified above is prohibited without the express written permission of Cypress.

Disclaimer CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not assume any liability arising out of the application or use of any product or circuit described herein. 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’ product in a life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.

Use may be limited by and subject to the applicable Cypress software license agreement.

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PSoC Designer , Programmable System-on-Chip , and PSoC Express are trademarks and is a registered trademark of Cypress Semiconductor Corp. All other trademarks or registered trademarks referenced herein are property of the respective corporations. Purchase of I2C components from Cypress or one of its sublicensed Associated Companies conveys a license under the Philips I2C Patent Rights to use these components in an I2C system, provided that the system conforms to the I2C Standard Specification as defined by Philips. All products and company names mentioned in this document may be the trademarks of their respective holders.
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Datasheet ID: CY7B9910-7SXCT 507842