843001AG-21LF-HT

843001AG-21LF-HT Datasheet

843001-21

Part	Datasheet
843001AG-21LF-HT	843001AG-21LF-HT (pdf)

Related Parts	Information
843001AG-21LFT-HT	843001AG-21LFT-HT

PDF Datasheet Preview
FemtoClocks Crystal-to-3.3V LVPECL Frequency Synthesizer 843001-21 DATA SHEET The 843001-21 is a highly versatile, low phase noise LVPECL Synthesizer which can generate low jitter reference clocks for a variety of communications applications. The dual crystal interface allows the synthesizer to support up to two communications standards in a given application i.e. 1GB Ethernet with a 25MHz crystal and 1Gb Fibre Channel using a 26.5625MHz crystal . The rms phase jitter performance is typically less than 1ps, thus making the device acceptable for use in demanding applications such as OC48 SONET and 10Gb Ethernet. The 843001-21 is packaged in a small 24-pin TSSOP package. • One 3.3Vdifferential LVPECL output pair and one LVCMOS/LVTTL single-ended reference clock output • Selectable crystal oscillator interface or LVCMOS/LVTTL single-ended input • VCO range 560MHz 700MHz • Supports the following applications: SONET, Ethernet, Fibre Channel, Serial ATA, and HDTV • Selectable ÷1 or ÷2 operation • RMS phase jitter 622.08MHz 12kHz - 20MHz : 0.80ps typical Offset Noise Power 100Hz dBc/Hz 1kHz dBc/Hz 10kHz dBc/Hz 100kHz dBc/Hz • Full 3.3V supply mode • 0°C to 70°C ambient operating temperature • Available in lead-free RoHS 6 package Block Diagram 3 N2:N0 SEL0 Pulldown SEL1 Pulldown XTAL_IN0 XTAL_OUT0 XTAL_IN1 XTAL_OUT1 TEST_CLK Pulldown MR Pulldown 3 M2:M0 OE_REF Pulldown Phase Detector 000 ÷18 001 ÷22 010 ÷24 011 ÷25 100 ÷32 default 101 ÷40 000 ÷1 001 ÷2 010 ÷3 011 ÷4 default 100 ÷5 101 ÷6 110 ÷8 111 ÷10 Pin Assignment VCCO_CMOS 1 N0 2 N1 3 N2 4 VCCO_PECL 5 Q0 6 Q0 7 VEE 8 VCCA 9 VCC 10 XTAL_OUT1 11 Q0XTAL_IN1 12 24 REF_CLK 23 VEE 22 OE_REF 21 M2 Ordering Information Table Ordering Information Part/Order Number 843001AG-21LF 843001AG-21LFT Marking ICS843001A21L Package “Lead-Free” 24 Lead TSSOP “Lead-Free” 24 Lead TSSOP Shipping Packaging Tube Tape & Reel Temperature 0C to 70C 0C to 70C NOTE Parts that are ordered with an "LF" suffix to the part number are the Pb-Free configuration and are RoHS compliant. FEMTOCLOCKS CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER 843001-21 DATA SHEET Table Page Description of Change Features Section - added Lead-Free bullet. 14 Ordering Information table - added Lead-Free marking. Programmable N Output Divider Function Table - corrected heading from M Divide Value to N Divide value. Added Recommendations for Unused Input and Output Pins. 10 Ordering Information Table - added lead-free note. General Description - corrected crystal frequency from 25.5625MHz crystal to 26.5625MHz crystal. Added LVCMOS Output RiseFall Time Diagram. 10 Added LVCMOS to XTAL Interface section. Updated format throughout the datasheet. 15 Ordering Information - removed leaded devices. Updated data sheet information. Date 2/8/05 10/26/05 3/15/07 4/6/15 FEMTOCLOCKS CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER Corporate Headquarters 6024 Silver Creek Valley Road San Jose, CA 95138 USA Sales 1-800-345-7015 or 408-284-8200 Fax 408-284-2775 Tech Support email: 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. While the information presented herein has been checked for both accuracy and reliability, Integrated Device Technology IDT assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal commercial applications. Any other applications, such as those requiring extended temperature ranges, high reliability or other extraordinary environmental requirements are not recommended without additional processing by IDT. IDT reserves the right to change any circuitry or specifications without notice. IDT does not authorize or warrant any IDT product for use in life support devices or critical medical instruments. Integrated Device Technology, IDT and the IDT logo are registered trademarks of IDT. Product specification subject to change without notice. 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 2015 Integrated Device Technology, Inc.. All rights reserved.

PDF Datasheet Preview

FemtoClocks Crystal-to-3.3V LVPECL Frequency Synthesizer
843001-21

DATA SHEET

The 843001-21 is a highly versatile, low phase noise LVPECL Synthesizer which can generate low jitter reference clocks for a variety of communications applications. The dual crystal interface allows the synthesizer to support up to two communications standards in a given application i.e. 1GB Ethernet with a 25MHz crystal and 1Gb Fibre Channel using a 26.5625MHz crystal . The rms phase jitter performance is typically less than 1ps, thus making the device acceptable for use in demanding applications such as OC48 SONET and 10Gb Ethernet. The 843001-21 is packaged in a small 24-pin TSSOP package.
• One 3.3Vdifferential LVPECL output pair and
one LVCMOS/LVTTL single-ended reference clock output
• Selectable crystal oscillator interface
or LVCMOS/LVTTL single-ended input
• VCO range 560MHz 700MHz
• Supports the following applications:

SONET, Ethernet, Fibre Channel, Serial ATA, and HDTV
• Selectable ÷1 or ÷2 operation
• RMS phase jitter 622.08MHz 12kHz - 20MHz :
0.80ps typical

Offset

Noise Power
100Hz dBc/Hz
1kHz dBc/Hz
10kHz dBc/Hz
100kHz dBc/Hz
• Full 3.3V supply mode
• 0°C to 70°C ambient operating temperature
• Available in lead-free RoHS 6 package

Block Diagram
3 N2:N0

SEL0 Pulldown SEL1 Pulldown

XTAL_IN0 XTAL_OUT0

XTAL_IN1 XTAL_OUT1

TEST_CLK Pulldown

MR Pulldown 3

M2:M0

OE_REF Pulldown

Phase Detector
000 ÷18 001 ÷22 010 ÷24 011 ÷25 100 ÷32 default 101 ÷40
000 ÷1 001 ÷2 010 ÷3 011 ÷4 default 100 ÷5 101 ÷6 110 ÷8 111 ÷10

Pin Assignment

VCCO_CMOS 1 N0 2

N1 3 N2 4

VCCO_PECL 5 Q0 6 Q0 7

VEE 8 VCCA 9

VCC 10 XTAL_OUT1 11 Q0XTAL_IN1 12
24 REF_CLK 23 VEE
22 OE_REF 21 M2
Ordering Information
Table Ordering Information

Part/Order Number 843001AG-21LF 843001AG-21LFT

Marking ICS843001A21L

Package “Lead-Free” 24 Lead TSSOP “Lead-Free” 24 Lead TSSOP

Shipping Packaging Tube

Tape & Reel

Temperature 0C to 70C 0C to 70C

NOTE Parts that are ordered with an "LF" suffix to the part number are the Pb-Free configuration and are RoHS compliant.

FEMTOCLOCKS CRYSTAL-TO-3.3V LVPECL FREQUENCY

SYNTHESIZER
843001-21 DATA SHEET

Table

Page Description of Change

Features Section - added Lead-Free bullet.
14 Ordering Information table - added Lead-Free marking.

Programmable N Output Divider Function Table - corrected heading from

M Divide Value to N Divide value.

Added Recommendations for Unused Input and Output Pins.
10 Ordering Information Table - added lead-free note.

General Description - corrected crystal frequency from 25.5625MHz crystal to
26.5625MHz crystal.

Added LVCMOS Output RiseFall Time Diagram.
10 Added LVCMOS to XTAL Interface section.

Updated format throughout the datasheet.
15 Ordering Information - removed leaded devices. Updated data sheet information.

Date 2/8/05 10/26/05
3/15/07 4/6/15

FEMTOCLOCKS CRYSTAL-TO-3.3V LVPECL FREQUENCY

SYNTHESIZER

Corporate Headquarters 6024 Silver Creek Valley Road San Jose, CA 95138 USA

Sales 1-800-345-7015 or 408-284-8200 Fax 408-284-2775

Tech Support email:

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.

While the information presented herein has been checked for both accuracy and reliability, Integrated Device Technology IDT assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal commercial applications. Any other applications, such as those requiring extended temperature ranges, high reliability or other extraordinary environmental requirements are not recommended without additional processing by IDT. IDT reserves the right to change any circuitry or specifications without notice. IDT does not authorize or warrant any IDT product for use in life support devices or critical medical instruments.

Integrated Device Technology, IDT and the IDT logo are registered trademarks of IDT. Product specification subject to change without notice. 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 2015 Integrated Device Technology, Inc.. 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 843001AG-21LF-HT Datasheet file may be downloaded here without warranties.

Datasheet ID: 843001AG-21LF-HT 636707