Datasheet > 276GI-XXT

276GI-XXT

更新时间： 2024-02-01 13:28:35

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
10页	228K
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276GI-XXT 数据手册

DATASHEET

TRIPLE PLL FIELD PROGRAMMABLE VCXO CLOCK SYNTHESIZER

ICS276

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

• Operating voltages of 3.3 V

• VDDO output control from 1.8 V to 3.3 V

• Controllable output drive levels

Using IDT’s 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.

• Advanced, low-power CMOS process

• Available in Pb (lead) free packaging

Each of the outputs are powered by a single VDDO voltage.

VDDO may vary from 1.8 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.

NOTE: EOL for non-green parts to occur on

5/13/10 per PDN U-09-01

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

IDT™ / ICS™ TRIPLE PLL FIELD PROGRAMMABLE VCXO CLOCK SYNTHESIZER 1

ICS276

REV D 081809

12 3 4 5 6 7...10

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