Datasheet > ICS276PGLF

ICS276PGLF

更新时间： 2024-10-27 11:14:23

品牌	Logo	应用领域
矽成 - ICSI		石英晶振压控振荡器时钟
页数	文件大小	规格书
8页	163K
描述
Triple PLL Field Programmable VCXO Clock Synthesizer

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ICS276PGLF 数据手册

PRELIMINARY INFORMATION

ICS276

Triple PLL Field Programmable VCXO Clock Synthesizer

Description

Features

The ICS276 field programmable VCXO clock

synthesizer generates up to three 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.

• Packaged as 16-pin TSSOP

• Eight addressable registers

• Replaces multiple crystals and oscillators

• Output frequencies up to 200 MHz at 3.3 V

• Input crystal frequency of 5 to 27 MHz

• Up to three reference outputs

Using ICS’ VersaClock software to configure PLLs

and outputs, the ICS276 contains a One-Time

Programmable (OTP) ROM for field programmability.

Programming features include VCXO and eight

selectable configuration registers.

• Operating voltages of 3.3 V

• VDDO output control from 1.8 V to 3.3 V

• Controllable output drive levels

Each of the outputs are powered by a single VDDO

voltage. VDDO may vary from 1.8 V to VDD.

• Advanced, low-power CMOS process

• Available in Pb (lead) free packaging

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 ICS276 is also available in factory programmed

custom versions for high-volume applications.

Block Diagram

VDDO

VDD

OTP

PLL1

S2:S0

ROM

with

CLK1

CLK2

CLK3

PLL

Values

Divide

Logic

and

Output

Enable

Control

PLL2

PLL3

VIN

Voltage

Controlled

Crystal

Oscillator

GND

External capacitors

are required.

PDTS

MDS 276 A

Revision 040805

Integrated Circuit Systems, Inc. ● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com

12 3 4 5 6 7 8

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