Datasheet > AV9107C

AV9107C

更新时间： 2022-11-25 11:25:59

品牌	Logo	应用领域
矽成 - ICSI		/
页数	文件大小	规格书
9页	506K
描述
CPU Frequency Generator

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AV9107C 数据手册

AV9107C

Integrated

Circuit

Systems, Inc.

CPU Frequency Generator

Features

General Description

The AV9107C offers a tiny footprint solution for generating

two simultaneous clocks. One clock, the REFCLK, is a fixed

output frequency which is the same as the input reference

crystal (or clock).The other clock, CLK1, can vary between 2

and 120 MHz, with up to 16 selectable preprogrammed fre-

quencies stored in internal ROM (frequency range depends on

design option).

Patented on-chip Phase-Locked Loop with VCO for

clock generation

Provides reference clock and synthesized clock

Generates frequencies from 2 to 120 MHz (depending

on option), operates to 80 MHz for V_DD3.3V±10%

8-pin DIP or SOIC package or 14-pin DIP or SOIC

package

2 to 32 MHz input reference frequency (depending on

option)

The device has advanced features which include on-chip loop

filters, tristate outputs, and power-down capability. A mini-

mum of external components - two decoupling capacitors and

an optional ferrite bead - are all that are required for jitter-free

operation. Standard versions for computer motherboard appli-

cationsaretheAV9107C-03, andAV9107C-05. Custommasked

versions, withcustomizedfrequenciesandfeatures, areavailable

in 6-8 weeks for a small NRE.

On-chip loop filter

Up to 16 frequencies stored internally

Low power CMOS technology

Single +3.3 or +5 volt power supply

Applications

power in computers. The device provides smooth, glitch-

free frequency transitions so that the CPU can continue to

operate during slow down or speed up. The rate of

frequency change makes the AV9107C compatible with all

386DX, 386SX, 486DX, 486DX2, and 486SX devices.

Standard versions include the AV9107C-03, -05, -10,

-11. Disk Drives: Smaller than a single crystal or an

oscillator, the tiny SOIC package can be used for any

general purpose frequency generation in disk drives.

Graphics: The AV9107C is the easiest to use, lowest cost,

and smallest footprint frequency generator for graphics

applications. It can generate up to 16 different frequencies,

including all frequencies necessary for VGA standards. It

should be used in place of the AV9105/6 when the reference

clock is also needed.

Computer: The AV9107C is the ideal solution for replacing

high speed oscillators and for reducing clock speeds to save

Block Diagram

Pentium is a trademark of Intel Corporation

PowerPC is a trademark of Motorola Corporation

9107CRevD2/3/98

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 information being relied upon by the

customer is current and accurate.

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