ICS271PGIT

ICS271PGIT Datasheet

ICS271

Part	Datasheet
ICS271PGIT	ICS271PGIT (pdf)

Related Parts	Information
ICS271PG	ICS271PG
ICS271PGI	ICS271PGI
ICS271PGT	ICS271PGT

PDF Datasheet Preview
DATASHEET TRIPLE PLL FIELD PROGRAMMABLE VCXO CLOCK SYNTHESIZER ICS271 The ICS271 field programmable VCXO clock synthesizer generates up to six high-quality, high-frequency clock outputs including multiple reference clocks from a low-frequency crystal input. It is designed to replace crystals and crystal oscillators in most electronic systems. Using IDT’s VersaClockTM software to configure PLLs and outputs, the ICS271 contains a One-Time Programmable OTP ROM for field programmability. Programming features include VCXO, eight selectable configuration registers and up to two sets of three low-skew outputs. Each of the two output groups are powered by a separate VDDO voltage. VDDO may vary from V to VDD. Using Phase-Locked Loop PLL techniques, the device runs from a standard fundamental mode, inexpensive crystal, or clock. It can replace VCXOs, multiple crystals and oscillators, saving board space and cost. The ICS271 is also available in factory programmed custom versions for high-volume applications. • Packaged as 20-pin TSSOP • Eight addressable registers • Replaces multiple crystals and oscillators • Output frequencies up to 200 MHz at V • Input crystal frequency of 5 to 27 MHz • Up to six reference outputs • Separate to V VDDO output level controls for each bank of 3 outputs • Up to two sets of three low-skew outputs • Operating voltages of V • Controllable output drive levels • Advanced, low-power CMOS process • Available in Pb lead free packaging NOTE EOL for non-green parts to occur on 5/13/10 per PDN U-09-01 Block Diagram 3 S2:S0 OTP ROM with PLL Values X1 Crystal Voltage Controlled Crystal Oscillator External capacitors are required. VDD 3 PLL1 PLL2 PLL3 VDDO1 Divide Logic and Output Enable Control GND 2 PDTS VDDO2 CLK1 CLK2 CLK3 CLK4 CLK5 CLK6 IDT / ICS TRIPLE PLL FIELD PROGRAMMABLE VCXO CLOCK SYNTHESIZER 1 ICS271 ICS271 TRIPLE PLL FIELD PROGRAMMABLE VCXO CLOCK SYNTHESIZER EPROM VCXO AND SYNTHESIZER Pin Assignment VIN 1 S0 2 S1 3 VDD 4 VDDO1 5 CLK1 6 CLK2 7 CLK3 8 GND 9 X1 10 20 S2 19 VDD 18 PDTS 17 GND 16 CLK6 15 CLK5 14 CLK4 13 VDDO2 12 VDD 11 X2 20 pin 173 mil TSSOP Pin Descriptions Pin Number 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 19 20 Pin Name S0 S1 VDD VDDO1 CLK1 CLK2 CLK3 GND X1 X2 VDD VDDO2 CLK4 CLK5 CLK6 GND PDTS VDD S2 Ordering Information Part / Order Number 271PG* 271PGI* 271PGLF 271PGILF 271G-XX* 271GI-XX* 271G-XXLF 271GI-XXLF 271G-XXT* 271GI-XXT* 271G-XXLFT 271GI-XXLFT Marking See page 7 271G-XX 271GIXX 271GXXL 271GIXXL 271G-XX 271GIXX 271GXXL 271GIXXL Shipping Packaging Tubes Tape and Reel Tape and Reel Tape and Reel Tape and Reel Package 20-pin TSSOP 20-pin TSSOP 20-pin TSSOP 20-pin TSSOP 20-pin TSSOP 20-pin TSSOP 20-pin TSSOP 20-pin TSSOP 20-pin TSSOP 20-pin TSSOP 20-pin TSSOP 20-pin TSSOP Temperature 0 to +70° C -40 to +85° C 0 to +70° C -40 to +85° C 0 to +70° C -40 to +85° C 0 to +70° C -40 to +85° C 0 to +70° C -40 to +85° C 0 to +70° C -40 to +85° C *NOTE EOL for non-green parts to occur on 5/13/10 per PDN U-09-01 Parts that are ordered with a “LF” suffix to the part number are the Pb-Free configuration and are RoHS compliant. The 271G-XX, 271G-XXLF, 271GI-XX, and 271GI-XXLF are factory programmed versions of the 271PG, 271PGLF, 271PGI, and 271PGILF. A unique “-XX” suffix is assigned by the factory for each custom configuration, and a separate data sheet is kept on file. For more information on custom part numbers programmed at the factory, please contact your local IDT sales and marketing representative. While the information presented herein has been checked for both accuracy and reliability, 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. VersaClockTM is a trademark of IDT, Inc. All rights reserved. IDT / ICS TRIPLE PLL FIELD PROGRAMMABLE VCXO CLOCK SYNTHESIZER 10 ICS271 ICS271 TRIPLE PLL FIELD PROGRAMMABLE VCXO CLOCK SYNTHESIZER EPROM VCXO 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

PDF Datasheet Preview

DATASHEET

TRIPLE PLL FIELD PROGRAMMABLE VCXO CLOCK SYNTHESIZER

ICS271

The ICS271 field programmable VCXO clock synthesizer generates up to six high-quality, high-frequency clock outputs including multiple reference clocks from a low-frequency crystal input. It is designed to replace crystals and crystal oscillators in most electronic systems. Using IDT’s VersaClockTM software to configure PLLs and outputs, the ICS271 contains a One-Time Programmable OTP ROM for field programmability. Programming features include VCXO, eight selectable configuration registers and up to two sets of three low-skew outputs.

Each of the two output groups are powered by a separate VDDO voltage. VDDO may vary from V to VDD.

Using Phase-Locked Loop PLL techniques, the device runs from a standard fundamental mode, inexpensive crystal, or clock. It can replace VCXOs, multiple crystals and oscillators, saving board space and cost.

The ICS271 is also available in factory programmed custom versions for high-volume applications.
• Packaged as 20-pin TSSOP
• Eight addressable registers
• Replaces multiple crystals and oscillators
• Output frequencies up to 200 MHz at V
• Input crystal frequency of 5 to 27 MHz
• Up to six reference outputs
• Separate to V VDDO output level controls for
each bank of 3 outputs
• Up to two sets of three low-skew outputs
• Operating voltages of V
• Controllable output drive levels
• Advanced, low-power CMOS process
• Available in Pb lead free packaging

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

Block Diagram
3 S2:S0

OTP ROM with PLL Values

X1 Crystal

Voltage Controlled

Crystal Oscillator

External capacitors are required.

VDD 3 PLL1 PLL2 PLL3

VDDO1

Divide Logic and Output Enable Control

GND 2

PDTS

VDDO2

CLK1 CLK2 CLK3 CLK4 CLK5 CLK6

IDT / ICS TRIPLE PLL FIELD PROGRAMMABLE VCXO CLOCK SYNTHESIZER 1

ICS271

ICS271 TRIPLE PLL FIELD PROGRAMMABLE VCXO CLOCK SYNTHESIZER

EPROM VCXO AND SYNTHESIZER

Pin Assignment

VIN 1 S0 2 S1 3 VDD 4 VDDO1 5 CLK1 6 CLK2 7 CLK3 8 GND 9 X1 10
20 S2 19 VDD 18 PDTS 17 GND 16 CLK6 15 CLK5 14 CLK4 13 VDDO2 12 VDD 11 X2
20 pin 173 mil TSSOP

Pin Descriptions

Pin Number
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
19 20

Pin Name

S0 S1 VDD VDDO1 CLK1 CLK2 CLK3 GND X1 X2 VDD VDDO2 CLK4 CLK5 CLK6 GND

PDTS

VDD S2
Ordering Information

Part / Order Number
271PG* 271PGI* 271PGLF 271PGILF 271G-XX* 271GI-XX* 271G-XXLF 271GI-XXLF 271G-XXT* 271GI-XXT* 271G-XXLFT 271GI-XXLFT

Marking

See page 7
271G-XX 271GIXX 271GXXL 271GIXXL 271G-XX 271GIXX 271GXXL 271GIXXL

Shipping Packaging

Tubes Tape and Reel Tape and Reel Tape and Reel Tape and Reel

Package
20-pin TSSOP 20-pin TSSOP 20-pin TSSOP 20-pin TSSOP 20-pin TSSOP 20-pin TSSOP 20-pin TSSOP 20-pin TSSOP 20-pin TSSOP 20-pin TSSOP 20-pin TSSOP 20-pin TSSOP

Temperature
0 to +70° C -40 to +85° C 0 to +70° C -40 to +85° C 0 to +70° C -40 to +85° C 0 to +70° C -40 to +85° C 0 to +70° C -40 to +85° C 0 to +70° C -40 to +85° C
*NOTE EOL for non-green parts to occur on 5/13/10 per PDN U-09-01

Parts that are ordered with a “LF” suffix to the part number are the Pb-Free configuration and are RoHS compliant.

The 271G-XX, 271G-XXLF, 271GI-XX, and 271GI-XXLF are factory programmed versions of the 271PG, 271PGLF, 271PGI, and 271PGILF. A unique “-XX” suffix is assigned by the factory for each custom configuration, and a separate data sheet is kept on file. For more information on custom part numbers programmed at the factory, please contact your local IDT sales and marketing representative.

While the information presented herein has been checked for both accuracy and reliability, 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. VersaClockTM is a trademark of IDT, Inc. All rights reserved.

IDT / ICS TRIPLE PLL FIELD PROGRAMMABLE VCXO CLOCK SYNTHESIZER 10

ICS271

ICS271 TRIPLE PLL FIELD PROGRAMMABLE VCXO CLOCK SYNTHESIZER

EPROM VCXO 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 ICS271PGIT Datasheet file may be downloaded here without warranties.

Datasheet ID: ICS271PGIT 636968