CY25422 datasheet(9/14 Pages) CYPRESS

Part #	CY25422

Description	Two PLL Programmable Clock Generator with Spread Spectrum

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Manufacturer	CYPRESS [Cypress Semiconductor]

Direct Link	http://www.cypress.com

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9 / 14 page

CY25402/CY25422/CY25482

Document #: 001-12565 Rev. *F

Page 9 of 14

Test and Measurement Setup

Figure 4. Test and Measurement Setup

Voltage and Timing Definitions

Figure 5. Duty Cycle Definition

Figure 6. Rise Time = TRF, Fall Time = TRF

Recommended Crystal Specification for Thru-Hole Package

Parameter

Description

Range 1 Range 2 Range 3

Unit

Fmin

Minimum frequency

8

14

24

MHz

Fmax

Maximum frequency

14

24

32

MHz

R1

Motional resistance (ESR)

90

50

30



C0

Shunt capacitance

7

pF

CL

Parallel load capacitance

18

12

pF

DL(max)

Maximum crystal drive level

1000

µW

0.1

F

VDD

Outputs

C LOAD

GND

DUT

Clock

Output

V

DD

50% of V

DD

0V

t

1

t

2

Clock

Output

T

RF

T

RF

V

DD

80% of V

DD

20% of V

DD

0V

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