841202BK-245LF

841202BK-245LF Datasheet

ICS841202-245

Part	Datasheet
841202BK-245LF	841202BK-245LF (pdf)

Related Parts	Information
841202BK-245LFT	841202BK-245LFT

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Crystal-to-HCSL Clock Synthesizer w/Spread Spectrum ICS841202-245 DATA SHEET The ICS841202-245 is a two output clock synthesizer optimized to generate low jitter with or without spread spectrum modulation. Spread type and amount can be configured via the SSC control pins. Using a 25MHz, 12pF parallel resonant crystal, the device will generate HCSL clocks at either 25MHz, 100MHz, 125MHz or 250MHz. The ICS841202-245 uses a low jitter VCO and is packaged in a 32-pin VFQFN package. • Two differential HCSL output pairs at 100MHz, 125MHz or 250MHz • HCSL outputs can be terminated to drive LVDS loads up to 175MHz • 25MHz crystal interface • Supports the following output frequencies 25MHz, 100MHz, 125MHz or 250MHz • Supports SSC downspread, centerspread and no spread options • Cycle-to-cycle jitter 55ps maximum • Period jitter, RMS 4.15ps maximum • Full 3.3V operating supply mode • 0°C to 70°C ambient operating temperature • Available in lead-free RoHS 6 packaging Block Diagram OE Pullup XTAL_IN XTAL_OUT 25MHz Phase Detector IREF Feedback Divider ÷20 2 SSC[1:0] Pullup:Pullup Default = 100MHz FSEL[1:0] Pulldown:Pullup Spread Spectrum Control 0 PLL Bypass 0 1 ÷5 1 0 ÷4 1 ÷2 Pin Assignment Q0 nQ0 GND VDDA VDD Q1 nQ1 32 31 30 29 28 27 26 25 VDD 1 24 nc VDD 2 23 IREF nc 3 Q1 nc 4 VDD 5 22 GND 21 nc 20 nc 19 SSC1 FSEL0 7 18 nc 17 GND 9 10 11 12 13 14 15 16 FSEL1 SSC0 VDD nc XTAL_IN XTAL_OUT Ordering Information Table Ordering Information Part/Order Number 841202BK-245LF 841202BK-245LFT Marking ICS202B245L CRYSTAL-TO-HCSL CLOCK SYNTHESIZER Package “Lead-Free” 32 Lead VFQFN “Lead-Free” 32 Lead VFQFN Shipping Packaging Tray Tape & Reel Temperature 0C to 70C 0C to 70C 2013 Integrated Device Technology, Inc. ICS841202-245 Data Sheet CRYSTAL-TO-HCSL CLOCK SYNTHESIZER We’ve Got Your Timing Solution 6024 Silver Creek Valley Road San Jose, California 95138 Sales 800-345-7015 inside USA +408-284-8200 outside USA Fax 408-284-2775 Technical Support Sales +480-763-2056 DISCLAIMER Integrated Device Technology, Inc. IDT and its subsidiaries reserve the right to modify the products and/or specifications described herein at any time and at IDT’s sole discretion. All information in this document, including descriptions of product features and performance, is subject to change without notice. Performance specifications and the operating parameters of the described products are determined in the independent state and are not guaranteed to perform the same way when installed in customer products. The information contained herein is provided without representation or warranty of any kind, whether express or implied, including, but not limited to, the suitability of IDT’s products for any particular purpose, an implied warranty of merchantability, or non-infringement of the intellectual property rights of others. This document is presented only as a guide and does not convey any license under intellectual property rights of IDT or any third parties. IDT’s products are not intended for use in applications involving extreme environmental conditions or in life support systems or similar devices where the failure or malfunction of an IDT product can be reasonably expected to significantly affect the health or safety of users. Anyone using an IDT product in such a manner does so at their own risk, absent an express, written agreement by IDT. Integrated Device Technology, IDT and the IDT logo are registered trademarks of IDT. Other trademarks and service marks used herein, including protected names, logos and designs, are the property of IDT or their respective third party owners. Copyright All rights reserved.

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Crystal-to-HCSL Clock Synthesizer w/Spread Spectrum

ICS841202-245

DATA SHEET

The ICS841202-245 is a two output clock synthesizer optimized to generate low jitter with or without spread spectrum modulation. Spread type and amount can be configured via the SSC control pins. Using a 25MHz, 12pF parallel resonant crystal, the device will generate HCSL clocks at either 25MHz, 100MHz, 125MHz or 250MHz. The ICS841202-245 uses a low jitter VCO and is packaged in a 32-pin VFQFN package.
• Two differential HCSL output pairs at 100MHz, 125MHz or
250MHz
• HCSL outputs can be terminated to drive LVDS loads up to
175MHz
• 25MHz crystal interface
• Supports the following output frequencies 25MHz, 100MHz,
125MHz or 250MHz
• Supports SSC downspread, centerspread and no spread options
• Cycle-to-cycle jitter 55ps maximum
• Period jitter, RMS 4.15ps maximum
• Full 3.3V operating supply mode
• 0°C to 70°C ambient operating temperature
• Available in lead-free RoHS 6 packaging

Block Diagram

OE Pullup

XTAL_IN XTAL_OUT
25MHz

Phase Detector

IREF

Feedback Divider ÷20
2 SSC[1:0] Pullup:Pullup

Default = 100MHz

FSEL[1:0] Pulldown:Pullup

Spread Spectrum Control
0 PLL Bypass 0 1 ÷5 1 0 ÷4 1 ÷2

Pin Assignment

Q0 nQ0 GND VDDA VDD Q1 nQ1
32 31 30 29 28 27 26 25

VDD 1
24 nc

VDD 2
23 IREF
nc 3 Q1
nc 4 VDD 5
22 GND 21 nc 20 nc
19 SSC1

FSEL0 7
18 nc
17 GND
9 10 11 12 13 14 15 16

FSEL1 SSC0

VDD nc

XTAL_IN XTAL_OUT
Ordering Information
Table Ordering Information

Part/Order Number 841202BK-245LF 841202BK-245LFT

Marking ICS202B245L

CRYSTAL-TO-HCSL CLOCK SYNTHESIZER

Package “Lead-Free” 32 Lead VFQFN “Lead-Free” 32 Lead VFQFN

Shipping Packaging Tray

Tape & Reel

Temperature 0C to 70C 0C to 70C
2013 Integrated Device Technology, Inc.

ICS841202-245 Data Sheet

CRYSTAL-TO-HCSL CLOCK SYNTHESIZER

We’ve Got Your Timing Solution
6024 Silver Creek Valley Road San Jose, California 95138

Sales 800-345-7015 inside USA +408-284-8200 outside USA Fax 408-284-2775

Technical Support Sales +480-763-2056

DISCLAIMER Integrated Device Technology, Inc. IDT and its subsidiaries reserve the right to modify the products and/or specifications described herein at any time and at IDT’s sole discretion. All information in this document, including descriptions of product features and performance, is subject to change without notice. Performance specifications and the operating parameters of the described products are determined in the independent state and are not guaranteed to perform the same way when installed in customer products. The information contained herein is provided without representation or warranty of any kind, whether express or implied, including, but not limited to, the suitability of IDT’s products for any particular purpose, an implied warranty of merchantability, or non-infringement of the intellectual property rights of others. This document is presented only as a guide and does not convey any license under intellectual property rights of IDT or any third parties.

IDT’s products are not intended for use in applications involving extreme environmental conditions or in life support systems or similar devices where the failure or malfunction of an IDT product can be reasonably expected to significantly affect the health or safety of users. Anyone using an IDT product in such a manner does so at their own risk, absent an express, written agreement by IDT.

Integrated Device Technology, IDT and the IDT logo are registered trademarks of IDT. Other trademarks and service marks used herein, including protected names, logos and designs, are the property of IDT or their respective third party owners.

Copyright All rights reserved.

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived 841202BK-245LF Datasheet file may be downloaded here without warranties.

Datasheet ID: 841202BK-245LF 636700