CY24488ZXCT datasheet(1/15 Pages) CYPRESS

Nome de Peças	CY24488ZXCT

Descrição Electrónicos	Quad PLL Clock Generator with Serial Interface (I2C)

PDF	15 Pages

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Fabricante Electrônico	CYPRESS [Cypress Semiconductor]

Página de início	http://www.cypress.com

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Quad PLL Clock Generator with Serial

Interface (I2C)

CY24488

Cypress Semiconductor Corporation

• 198 Champion Court

• San Jose

, CA 95134-1709

•

408-943-2600

Document #: 001-09608 Rev. *A

Revised October 31, 2006

Features

•Three output frequencies plus reference out

•Programmable output frequencies via I2C serial interface

•Output frequencies from 4.9152 to 148.5 MHz

•Uses an external 27 MHz crystal or 27 MHz input clock

•Optional analog VCXO

•Programmable output drive strength to minimize EMI

•The non-I2C equivalent is the CY22388 / 89 / 91

•16-pin TSSOP package

•3.3V operation with 2.5V output buffer option

Benefits

•Meets most Digital Set Top Box, DVD Recorder, and DTV

application requirements

•Multiple high-performance PLLs allow synthesis of

unrelated frequencies

•Integration eliminates the need for external loop filter

components

•Complete VCXO solution with ±120 ppm (typical pull range)

Block Diagram

Pin Configuration

PLL1

PLL2

PLL3

PLL4

Dividers

&

Multiplexers

VCXO

Serial

Interface

&

Select

Logic

XIN/CLKIN

XOUT

VIN

SCLK

SDAT

CLKC

CLKD

CLKE

CLKF

CLKG

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

XIN/CLKIN

SCLK

SDAT

VIN

VDD1

VSS

CLKC

CLKD

CLKE

CLKF

CLKG

VSS

VDD2

DNC

AVDD

XOUT

Table 1. Applications and Frequencies

Output Clock

Application

Frequencies (MHz)

CLKC

Audio

6.144, 8.192, 11.2896, 12.288, 16.384, 16.9344, 18.432, 22.5792, 24.576,

33.8688, 36.864

iLink

24.576

HDMI

25.175, 28.322

CLKD

Video

27, 27.027, 54, 54.054, 81

USB

12, 24, 48

Video-Pixel Freq.

74.25/1.001, 74.25, 148.5/1.001, 148.5

Modem

4.9152, 11.0592

iLink

24.576

CLKE

Video

13.5, 27, 54, 81, 108

Ethernet

25

PCI

33.3333, 66.6666

Processor

20, 30, 40, 50, 60, 80, 100

CLKF

see CLKC/D/E

REFOUT or Copy of CLKC, CLKD or CLKE

CLKG

see CLKC/D/E

REFOUT or Copy of CLKC, CLKD or CLKE

[+] Feedback

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