CY28404OCT SPECTRALINEAR [SpectraLinear Inc], CY28404OCT Datasheet

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CY28404OCT

Manufacturer Part Number

CY28404OCT

Description

CK409-Compliant Clock Synthesizer

Manufacturer

SPECTRALINEAR [SpectraLinear Inc]

Datasheet

1.CY28404OCT.pdf (19 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Bonase Electronics (HK) Co., Limited

Part Number:

CY28404OCT

Quantity:

200

Company:

Meier Automation Equipment Co., Limited

Meier Automation Equipment Co., Limited

Part Number:

CY28404OCT

Manufacturer:

CYPRESS

Quantity:

20 000

Current page: 1 of 19
Download datasheet (217Kb)

Rev 1.0, November 22, 2006

2200 Laurelwood Road, Santa Clara, CA 95054

Features

VTT_PWRGD#

• Supports Intel Springdale/Prescott (CK409)

• Selectable CPU frequencies

• 3.3V power supply

• Nine copies of PCI clock

• Four copies 3V66 clock with optional VCH

• Three copies 48-MHz clock

• Three copies REF clock

Block Diagram

SEL24#

SELVCH

FS_(A:E)

MODE

SDATA

XOUT

PD#

SCLK

IREF

XIN

PLL 1

PLL2

Logic

XTAL

I

OSC

2

C

Network

Divider

PLL Ref Freq

Timer

WD

2

2

VDD_REF

REF(0:2)

VDD_CPU

VDD_3V66

VDD_PCI

VDD_48MHz

DOT_48

USB_48

RESET#

CPUT(0:1), CPUC(0:1)

3V66_(0:2)

PCI(0:5)

24_48MHz

PCIF(0:2)

3V66_3/VCH

Tel:(408) 855-0555

CK409-Compliant Clock Synthesizer

Table 1. Frequency Table

*SEL24#/24_48MHz

• Two differential CPU clock pairs

• Support SMBus/I

• Dial-A-Frequency

• Ideal Lexmark Spread Spectrum profile for maximum

• 48-pin SSOP package

electromagnetic interference (EMI) reduction

CPU

x 2

**FS_A/REF_0

**FS_B/REF_1

RESET#/PD#

*FS_C/PCIF0

*FS_D/PCIF1

*FS_E/PCIF2

Fax:(408) 855-0550

VDD_REF

VSS_REF

VDD_PCI

VDD_PCI

VSS_PCI

VSS_PCI

DOT_48

USB_48

VSS_48

XOUT

PCI0

PCI1

PCI2

PCI3

PCI4

PCI5

XIN

3V66

x 4

Pin Configuration

** 150k Internal Pull-down

*** Do Not Connect

* 150k Internal Pull-up

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

2

C Byte, Word, and Block Read/Write

SSOP-48

PCI

x 9

www.SpectraLinear.com

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

REF

CY28404

REF_2

VDDA

VSSA

IREF

VSS_CPU

CPUT1

CPUC1

VDD_CPU

CPUT0

CPUC0

VSS

DNC***

DNC***

VDD

VTT_PWRGD#

SDATA*

SCLK*

3V66_0

3V66_1

VSS_3V66

VDD_3V66

3V66_2/MODE*

3V66_3/VCH/SELVCH**

VDD_48

x 3

Page 1 of 19

48M

x 3

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