MK1491-06S

MK1491-06S Datasheet

MK1491-06

Part	Datasheet
MK1491-06S	MK1491-06S (pdf)

Related Parts	Information
MK1491-06R	MK1491-06R
MK1491-06RTR	MK1491-06RTR
MK1491-06STR	MK1491-06STR

PDF Datasheet Preview
AMD GEODE CLOCK SOURCE DATASHEET MK1491-06 The MK1491-06 is a low-cost, low-jitter, high-performance clock synthesizer for AMD’s Geode-based computer and portable appliance applications. Using patented analog Phased-Locked Loop PLL techniques, the device accepts a MHz crystal input to produce multiple output clocks. It provides selectable PCI local bus and AC97 audio clocks, 24 MHz and 48 MHz clocks for Super I/O and USB, as well as multiple Reference outputs. The device has multiple power-down modes to reduce power consumption. Block Diagram • Packaged in 28-pin SOIC or in 28-pin SSOP • Available in Pb lead free • Provides all critical timing for the AMD Geode companion chip • Four PCI clocks • Selectable PCIF on up to 2 outputs • Early PCI clock selectability • Up to 4 Reference clocks • 48 MHz USB and 24MHz SIO support • AC97 audio clock • Multiple power down modes • Low EMI Enable pin reduces EMI radiation on PCI clocks patented • Operating voltage of V ±5% PCI Frequency Select Low EMI Enable PCIF Function Enable Early PCI Enable SLOW# PCISTP# PWRDWN# PCI Clocks PCI EPCI/PCI Audio Select 14.3M/24M Select MHz crystal Crystal Oscillator Audio Clock Fixed Clocks MHz or MHz or MHz 48 MHz MHz or 24 MHz IDT / ICS AMD GEODE CLOCK SOURCE MK1491-06 AMD GEODE CLOCK SOURCE CLOCK SYNTHESIZER Pin Assignment VDD 1 GND 4 14.3M TS 5 14.3M 6 GND 7 14.3M SEL AUDIO VDD 9 SLOW# 10 GND 11 FS 12 SEL24 13 VDD 14 Early PCI Control Table EPCI# 0 1 PCI Pin 22 1 ns early Normal Ordering Information Part / Order Number Marking MK1491-06R MK1491-06R MK1491-06RTR MK1491-06R MK1491-06RLF MK1491-06RLF MK1491-06RLFTR MK1491-06RLF MK1491-06S MK1491-06S MK1491-06STR MK1491-06S MK1491-06SLF MK1491-06SLF MK1491-06SLFTR MK1491-06SLF Shipping Packaging Tubes Tape and Reel Tubes Tape and Reel Tubes Tape and Reel Tubes Tape and Reel Package 28-pin SSOP 28-pin SSOP 28-pin SSOP 28-pin SSOP 28-pin SOIC 28-pin SOIC 28-pin SOIC 28-pin SOIC Temperature 0 to +70° C 0 to +70° C 0 to +70° C 0 to +70° C 0 to +70° C 0 to +70° C 0 to +70° C 0 to +70° C “LF” denotes Pb lead free package. While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems ICS 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 ICS. ICS reserves the right to change any circuitry or specifications without notice. ICS does not authorize or warrant any ICS product for use in life support devices or critical medical instruments. IDT / ICS AMD GEODE CLOCK SOURCE MK1491-06 AMD GEODE CLOCK SOURCE CLOCK 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 <product line email> <product line phone> Corporate Headquarters Integrated Device Technology, Inc. 6024 Silver Creek Valley Road San Jose, CA 95138 United States 800 345 7015 +408 284 8200 outside U.S. Asia Pacific and Japan Integrated Device Technology Singapore 1997 Pte. Ltd. Reg. No. 199707558G 435 Orchard Road #20-03 Wisma Atria Singapore 238877 +65 6 887 5505

PDF Datasheet Preview

AMD GEODE CLOCK SOURCE

DATASHEET

MK1491-06

The MK1491-06 is a low-cost, low-jitter, high-performance clock synthesizer for AMD’s Geode-based computer and portable appliance applications. Using patented analog Phased-Locked Loop PLL techniques, the device accepts a MHz crystal input to produce multiple output clocks. It provides selectable PCI local bus and AC97 audio clocks, 24 MHz and 48 MHz clocks for Super I/O and USB, as well as multiple Reference outputs. The device has multiple power-down modes to reduce power consumption.

Block Diagram
• Packaged in 28-pin SOIC or in 28-pin SSOP
• Available in Pb lead free
• Provides all critical timing for the AMD Geode companion
chip
• Four PCI clocks
• Selectable PCIF on up to 2 outputs
• Early PCI clock selectability
• Up to 4 Reference clocks
• 48 MHz USB and 24MHz SIO support
• AC97 audio clock
• Multiple power down modes
• Low EMI Enable pin reduces EMI radiation on PCI clocks
patented
• Operating voltage of V ±5%

PCI Frequency Select Low EMI Enable

PCIF Function Enable Early PCI Enable SLOW# PCISTP# PWRDWN#

PCI Clocks

PCI EPCI/PCI

Audio Select
14.3M/24M Select

MHz crystal

Crystal Oscillator

Audio Clock

Fixed Clocks

MHz or MHz or MHz 48 MHz

MHz or 24 MHz

IDT / ICS AMD GEODE CLOCK SOURCE

MK1491-06 AMD GEODE CLOCK SOURCE

CLOCK SYNTHESIZER

Pin Assignment

VDD 1

GND 4
14.3M TS 5
14.3M 6

GND 7
14.3M SEL AUDIO

VDD 9

SLOW# 10

GND 11

FS 12

SEL24 13

VDD 14

Early PCI Control Table

EPCI# 0 1

PCI Pin 22 1 ns early Normal
Ordering Information

Part / Order Number

Marking

MK1491-06R

MK1491-06R

MK1491-06RTR

MK1491-06R

MK1491-06RLF

MK1491-06RLF

MK1491-06RLFTR MK1491-06RLF

MK1491-06S

MK1491-06S

MK1491-06STR

MK1491-06S

MK1491-06SLF

MK1491-06SLF

MK1491-06SLFTR

MK1491-06SLF

Shipping Packaging

Tubes Tape and Reel

Tubes Tape and Reel

Tubes Tape and Reel

Tubes Tape and Reel

Package
28-pin SSOP 28-pin SSOP 28-pin SSOP 28-pin SSOP 28-pin SOIC 28-pin SOIC 28-pin SOIC 28-pin SOIC

Temperature
0 to +70° C 0 to +70° C 0 to +70° C 0 to +70° C 0 to +70° C 0 to +70° C 0 to +70° C 0 to +70° C
“LF” denotes Pb lead free package.

While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems ICS 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 ICS. ICS reserves the right to change any circuitry or specifications without notice. ICS does not authorize or warrant any ICS product for use in life support devices or critical medical instruments.

IDT / ICS AMD GEODE CLOCK SOURCE

MK1491-06 AMD GEODE CLOCK SOURCE

CLOCK 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
<product line email> <product line phone>

Corporate Headquarters

Integrated Device Technology, Inc. 6024 Silver Creek Valley Road San Jose, CA 95138 United States 800 345 7015 +408 284 8200 outside U.S.

Asia Pacific and Japan

Integrated Device Technology Singapore 1997 Pte. Ltd. Reg. No. 199707558G 435 Orchard Road #20-03 Wisma Atria Singapore 238877 +65 6 887 5505

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 MK1491-06S Datasheet file may be downloaded here without warranties.

Datasheet ID: MK1491-06S 637434