ICS2510C datasheet(1/7 Pages) IDT

No. de pieza	ICS2510C

Descripción Electrónicos	Distributes one clock input to one bank of ten outputs

PDF	7 Pages

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Fabricante Electrónico	IDT [Integrated Device Technology]

Página de inicio	http://www.idt.com

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Integrated

Circuit

Systems, Inc.

General Description

Features

ICS2510C

0010G—09/22/09

Block Diagram

3.3V Phase-Lock Loop Clock Driver

Pin Configuration

The ICS2510C is a high performance, low skew, low jitter

clock driver. It uses a phase lock loop (PLL) technology to

align, in both phase and frequency, the CLKIN signal with

the CLKOUT signal. It is specifically designed for use with

synchronous SDRAMs.The ICS2510C operates at 3.3V

VCC and drives up to ten clock loads.

One bank of ten outputs provide low-skew, low-jitter

copies of CLKIN. Output signal duty cycles are adjusted

to 50 percent, independent of the duty cycle at CLKIN.

Outputs can be enabled or disabled via control (OE)

inputs. When the OE inputs are high, the outputs align in

phase and frequency with CLKIN; when the OE inputs are

low, the outputs are disabled to the logic low state.

The ICS2510C does not require

external RC filter

components.The loop filter for the PLL is included on-chip,

minimizing component count, board space, and cost.The

test mode shuts off the PLL and connects the input

directly to the output buffer.This test mode, the ICS2510C

can be use as low skew fanout clock buffer device. The

ICS2510C comes in 24 pin 173mil Thin Shrink Small-

Outline package (TSSOP) package.

•

Meets or exceeds PC133 registered DIMM

specification1.1

•

Spread Spectrum Clock Compatible

•

Distributes one clock input to one bank of ten outputs

•

Operating frequency 25MHz to 175MHz

•

External feedback input (FBIN) terminal is used to

synchrionize the outputs to the clock input

•

No external RC network required

•

Operates at 3.3V Vcc

•

Plastic 24-pin 173mil TSSOP package

24 Pin TSSOP

4.40 mm. Body, 0.65 mm. pitch

PLL

AVCC

FBIN

CLKIN

CLK0

CLK9

CLK8

CLK7

CLK6

CLK5

CLK4

CLK3

CLK2

CLK1

FBOUT

OE

CLKIN

AVCC

VCC

CLK9

CLK8

GND

CLK7

CLK6

CLK5

VCC

FBIN

AGND

VCC

CLK0

CLK1

CLK2

GND

CLK3

CLK4

VCC

OE

FBOUT

24

23

22

21

20

19

18

17

16

15

14

13

1

2

3

4

5

6

7

8

9

10

11

12

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