Datasheet > ICS570AIT

ICS570AIT

更新时间： 2024-11-06 22:22:47

品牌	Logo	应用领域
矽成 - ICSI		逻辑集成电路光电二极管驱动
页数	文件大小	规格书
6页	89K
描述
Multiplier and Zero Delay Buffer

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ICS570AIT 数据手册

ICS570A

Multiplier and Zero Delay Buffer

Description

Features

The ICS570A is a high performance Zero Delay

Buffer (ZDB) which integrates ICS’ proprietary

analog/digital Phase Locked Loop (PLL) techniques.

ICS introduced the world standard for these devices

in 1992 with the debut of the AV9170. The

ICS570A, part of ICS’ ClockBlocks™ family, was

designed as a performance upgrade to meet today’s

higher speed and lower voltage requirements. The

zero delay feature means that the rising edge of the

input clock aligns with the rising edges of both

outputs, giving the appearance of no delay through

the device. There are two outputs on the chip, one

being a low-skew divide by two of the other. The chip

has an all-chip power down/tri-state mode that stops

the internal PLL and puts both outputs into the high

impedance state.

• Packaged in 8 pin SOIC.

• Pin-for-pin replacement and upgrade to ICS570

• Functional equivalent to AV9170 (not a pin-

for-pin replacement).

• Low input to output skew of 500 ps max.

• Low skew (250 ps) outputs. One is ÷ 2 of other.

• Ability to choose between 14 different

multipliers from 0.5X to 32X.

• Input clock frequency up to 150 MHz at 3.3V.

• Can recover poor input clock duty cycle.

• Output clock duty cycle of 45/55.

• Power Down and Tri-State Mode.

• Full CMOS clock swings with 25mA drive

capability at TTL levels.

The chip is ideal for synchronizing outputs in a large

variety of systems, from personal computers to data

communications to video. By allowing off-chip

feedback paths, the ICS570A can eliminate the delay

through other devices.

• Advanced, low power CMOS process.

• Operating voltage of 3.0 to 5.5 V.

• Industrial temperature version available

The ICS570A was done to improve jitter from the

original ICS570, and so it is recommended for all new

designs.

Block Diagram

Voltage

Output

ICLK

S1, S0

Phase

Detector,

Charge

Pump, and

Loop Filter

CLK

Controlled

Oscillator

Buffer

÷2

divide by

Output

Buffer

FBIN

CLK/2

External feedback can come from CLK or CLK/2 (see table on page 2).

MDS 570A C

Revision 102700

Printed 11/14/00

Integrated Circuit Systems, Inc .• 525 Race Street • San Jose • CA •95126• (408)295-9800tel •www.icst.com

12 3 4 5 6

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