ICS9158-07 ETC-unknow, ICS9158-07 Datasheet

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ICS9158-07

Manufacturer Part Number
ICS9158-07
Description
Manufacturer
ETC-unknow
Datasheet
General Description
The ICS9158-07 is a low-cost frequency generator designed
specifically for desktop and notebook PC applications. Four
copies of the CPU clock are available and four copies of
the BUS clock are available, elimating the need for an
external buffer.
Each high drive (25mA) output is capable of driving a 30pF
load and has a typical duty cycle of 50/50. The clock outputs
are skew-controlled to within ±250ps.
The ICS9158-07 makes a gradual transition between frequen-
cies, so that it meets the Intel cycle-to-cycle timing specifica-
tion for 486 and Pentium systems.
Frequency Generator and Integrated Buffer
Block Diagram
9158-07 Rev B 053197
Integrated
Circuit
Systems, Inc.
ICS reserves the right to make changes in the device data identified in this publication
without further notice. ICS advises its customers to obtain the latest version of all
device data to verify that any
NOTE: THIS DATA SHEET, ICS9158-07, IS AN ADDENDUM TO THE EXISTING
ICS9158 DATA SHEET. ALL INFORMATION IN THIS DATA SHEET SUPERSEDES
THE DATA FOUND IN THE ORIGINAL ICS9158 DATA SHEET.
Features
Applications
Ideal for RISC or CISC systems such as 486, Pentium,™
PowerPC,™ etc., requiring multiple CPU and BUS clocks.
8 skew-free, high drive CPU/BUS clocks
Reference, floppy and keyboard clocks
±250ps skew between all outputs
Less than ±250ps absolute jitter
Outputs can drive up to 30pF load at 1.5V/ns
50±10% duty cycle
Compatible with 486 and Pentium CPUs
On-chip loop filter components
3.0V - 5.5V supply range
24-pin SOIC package
PowerPC is a trademark of Motorola Corporation.
Pentium is a trademark of Intel Corporation.
ICS9158-07

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ICS9158-07 Summary of contents

Page 1

... PowerPC,™ etc., requiring multiple CPU and BUS clocks. Pentium is a trademark of Intel Corporation. PowerPC is a trademark of Motorola Corporation. NOTE: THIS DATA SHEET, ICS9158-07 ADDENDUM TO THE EXISTING ICS9158 DATA SHEET. ALL INFORMATION IN THIS DATA SHEET SUPERSEDES THE DATA FOUND IN THE ORIGINAL ICS9158 DATA SHEET. ...

Page 2

... ICS9158-07 Pin Configuration 24-Pin SOIC Pin Descriptions PIN NUMBER PIN NAME 1, 8, 13, 14 CLK1A VDD 5, 12 GND 6 48 MHz 7 24 MHz 9 AGND 10 OE 11, 17, 21, 22 CLK12 15 FS2 16 AVDD 18 REF 19 GND 20 VDD 22 CLK2 23 FS1 24 FS0 Functionality V =5±10% or 3.3V±10%, TEMP=0-70°C ...

Page 3

... I V =0. =2. load, 80 MHz DD With respect to typical F D frequency I Each output clock SC R Input pin PU C Except X1 Pins X1 ICS9158-07 MIN TYP MAX UNITS 0.8 2 0.25 0.4 2.4 3 -55 - 0.002 0. 680 µA µ ...

Page 4

... ICS9158-07 Electrical Characteristics (continued +5V±10%, T =0°C to 70°C unless otherwise stated DD A PARAMETER SYMBOL 1 Output Rise time, 0.8 to 2.0V 1 Rise time, 20 Output Fall time, 2.0 to 0.8V 1 Fall time, 80 Duty cycle 1 Jitter, one sigma Jitter, absolute ...

Page 5

... Ordering Information ICS9158-07N Example: ICS XXXX-PPP M Package Type Pattern Number ( digit number for parts with ROM code patterns) Device Type (consists digit numbers) Prefix 24-Pin DIP Package N=DIP (Plastic#) ICS, AV=Standard Device 5 ICS9158-07 ...

Page 6

... ICS9158-07 Ordering Information ICS9158-07M Example: ICS XXXX-PPP M 24-Pin SOIC (wide body Package Type M=SOIC Pattern Number ( digit number for parts with ROM code patterns) Device Type (consists digit numbers) Prefix ICS, AV=Standard Device ICS reserves the right to make changes in the device data identified in this publication without further notice ...

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