ICS680G-01T

ICS680G-01T Datasheet

NETWORKING CLOCK SYNTHESIZER AND ZERO DELAY BUFFER ICS680-01

Part	Datasheet
ICS680G-01T	ICS680G-01T (pdf)

Related Parts	Information
ICS680G-01	ICS680G-01

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DATASHEET NETWORKING CLOCK SYNTHESIZER AND ZERO DELAY BUFFER ICS680-01 The ICS680-01 generates four high-frequency clock outputs and a reference from a 25 MHz crystal or clock input. The device includes a low-skew, single input to four output zero delay clock buffer. It can replace multiple crystals and oscillators, saving board space and cost. The device has a power-down tri-state PDTS pin that place the clock outputs in a high-impedance state when pulled low. The PDTS pin includes an internal pull-up resistor. • Packaged in 24-pin TSSOP • Available in Pb lead free package • Replaces multiple crystals and oscillators • Input crystal or clock frequency of 25 MHz • Five output driver driven by external clock • Duty cycle of 45/55 • Operating voltage of V • Advanced, low-power CMOS process • Fixed output frequencies of 25 MHz and 48 MHz • Selectable output frequencies of 24 MHz, 48 MHz, 50 MHz and MHz • Qx outputs replace costly discrete buffer • Low-skew buffer outputs 250 ps NOTE EOL for non-green parts to occur on 5/13/10 per PDN U-09-01 Block Diagram S0 S1 25 MHz Crystal or Clock X1/ICLK X2 External capacitors may be required. ICLK VDD 5 PLLA PLLB PLLC Crystal Oscillator Divide Logic and Output Enable Control PLL/Buffer 2 GND PDTS CLK1 CLK2 48M 25M QFB Q0 Q1 Q2 Q3 IDT / ICS NETWORKING CLOCK SYNTHESIZER AND ZERO DELAY BUFFER 1 ICS680-01 NETWORKING CLOCK SYNTHESIZER AND ZERO DELAY BUFFER ZDB AND SYNTHESIZER Pin Assignment X1/ICLK GND S0 VDD CLK1 GND Q1 Q2 VDD Q3 Q4 24-pin TSSOP Pin Descriptions X2 VDD PDTS S1 25M ICLK VDD QFB VDD 48M CLK2 GND Output Clock Select Table S0 S1 CLK1 MHz CLK2 MHz Pin Number 1 2 3 4 5 Pin Name X1/ICLK GND S0 VDD CLK1 CLK2 Pin Type Ordering Information SEATING PLANE Part / Order Number 680G-01* 680G-01T* 680G-01LF 680G-01LFT Marking 680G-01 680G-01 680G-01LF 680G-01LF Shipping Packaging Tubes Tape and Reel Tubes Tape and Reel Package 24-pin TSSOP 24-pin TSSOP 24-pin TSSOP 24-pin TSSOP Temperature 0 to +70° C 0 to +70° C 0 to +70° C 0 to +70° C *NOTE EOL for non-green parts to occur on 5/13/10 per PDN U-09-01 “LF” denotes Pb lead free package. 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 range, 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. IDT / ICS NETWORKING CLOCK SYNTHESIZER AND ZERO DELAY BUFFER 7 ICS680-01 NETWORKING CLOCK SYNTHESIZER AND ZERO DELAY BUFFER ZDB AND SYNTHESIZER Originator P.Griffith P.Griffith J. Sarma Date Description of Change 10/01/04 Removed power supply ramp-up time spec added trinary input specs to DC chars added a second Output Low Voltage spec updated Supply Current specs from 50 to 32 mA, and 50 to 300 uA changed pull-down resistor value from 525 to 250 kohms changed Output Rise/Fall times from 1 to ns 12/21/04 Released as standard product from custom device. 02/03/05 Add LF ordering info. 11/04/09 Added EOL note for non-green parts. IDT / ICS NETWORKING CLOCK SYNTHESIZER AND ZERO DELAY BUFFER 8 ICS680-01 NETWORKING CLOCK SYNTHESIZER AND ZERO DELAY BUFFER ZDB AND SYNTHESIZER Innovate with IDT and accelerate your future networks. Contact: For Sales 800-345-7015 408-284-8200 Fax 408-284-2775 For Tech Support Corporate Headquarters Integrated Device Technology, Inc. 2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device Technology, Inc. Accelerated Thinking is a service mark of Integrated Device Technology, Inc. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners. Printed in USA

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DATASHEET

NETWORKING CLOCK SYNTHESIZER AND ZERO DELAY BUFFER ICS680-01

The ICS680-01 generates four high-frequency clock outputs and a reference from a 25 MHz crystal or clock input. The device includes a low-skew, single input to four output zero delay clock buffer. It can replace multiple crystals and oscillators, saving board space and cost.

The device has a power-down tri-state PDTS pin that place the clock outputs in a high-impedance state when pulled low. The PDTS pin includes an internal pull-up resistor.
• Packaged in 24-pin TSSOP
• Available in Pb lead free package
• Replaces multiple crystals and oscillators
• Input crystal or clock frequency of 25 MHz
• Five output driver driven by external clock
• Duty cycle of 45/55
• Operating voltage of V
• Advanced, low-power CMOS process
• Fixed output frequencies of 25 MHz and 48 MHz
• Selectable output frequencies of 24 MHz, 48 MHz, 50

MHz and MHz
• Qx outputs replace costly discrete buffer
• Low-skew buffer outputs 250 ps

NOTE EOL for non-green parts to occur on 5/13/10 per PDN U-09-01

Block Diagram

S0 S1
25 MHz Crystal or Clock

X1/ICLK X2

External capacitors may be required.

ICLK

VDD 5

PLLA PLLB

PLLC

Crystal Oscillator

Divide Logic
and Output Enable Control

PLL/Buffer
2 GND

PDTS

CLK1 CLK2 48M 25M

QFB Q0 Q1 Q2 Q3

IDT / ICS NETWORKING CLOCK SYNTHESIZER AND ZERO DELAY BUFFER 1

ICS680-01 NETWORKING CLOCK SYNTHESIZER AND ZERO DELAY BUFFER

ZDB AND SYNTHESIZER

Pin Assignment

X1/ICLK GND S0 VDD CLK1 GND Q1 Q2 VDD Q3 Q4
24-pin TSSOP

Pin Descriptions

X2 VDD PDTS S1 25M ICLK VDD QFB VDD 48M CLK2 GND

Output Clock Select Table

S0 S1 CLK1 MHz CLK2 MHz

Pin Number
1 2 3 4 5

Pin Name

X1/ICLK GND S0 VDD CLK1

CLK2

Pin Type
Ordering Information

SEATING PLANE

Part / Order Number
680G-01* 680G-01T* 680G-01LF 680G-01LFT

Marking
680G-01 680G-01 680G-01LF 680G-01LF

Shipping Packaging

Tubes Tape and Reel

Tubes Tape and Reel

Package
24-pin TSSOP 24-pin TSSOP 24-pin TSSOP 24-pin TSSOP

Temperature
0 to +70° C 0 to +70° C 0 to +70° C 0 to +70° C
*NOTE EOL for non-green parts to occur on 5/13/10 per PDN U-09-01
“LF” denotes Pb lead free package.

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 range, 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.

IDT / ICS NETWORKING CLOCK SYNTHESIZER AND ZERO DELAY BUFFER 7

ICS680-01 NETWORKING CLOCK SYNTHESIZER AND ZERO DELAY BUFFER

ZDB AND SYNTHESIZER

Originator P.Griffith

P.Griffith J. Sarma

Date Description of Change
10/01/04

Removed power supply ramp-up time spec added trinary input specs to DC chars added a second Output Low Voltage spec updated Supply Current specs from 50 to 32 mA, and 50 to 300 uA changed pull-down resistor value from 525 to 250 kohms changed Output Rise/Fall times from 1 to ns
12/21/04 Released as standard product from custom device.
02/03/05 Add LF ordering info.
11/04/09 Added EOL note for non-green parts.

IDT / ICS NETWORKING CLOCK SYNTHESIZER AND ZERO DELAY BUFFER 8

ICS680-01 NETWORKING CLOCK SYNTHESIZER AND ZERO DELAY BUFFER

ZDB AND SYNTHESIZER

Innovate with IDT and accelerate your future networks. Contact:

For Sales
800-345-7015 408-284-8200 Fax 408-284-2775

For Tech Support

Corporate Headquarters

Integrated Device Technology, Inc.
2006 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice. IDT and the IDT logo are trademarks of Integrated Device Technology, Inc. Accelerated Thinking is a service mark of Integrated Device Technology, Inc. All other brands, product names and marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners. Printed in USA

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 ICS680G-01T Datasheet file may be downloaded here without warranties.

Datasheet ID: ICS680G-01T 637063