CY7B9950AXI datasheet(7/12 Pages) CYPRESS

Part #	CY7B9950AXI

Description	2.5/3.3V, 200 MHz High-Speed Multi-Phase PLL Clock Buffer

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Manufacturer	CYPRESS [Cypress Semiconductor]

Direct Link	http://www.cypress.com

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7 / 12 page

CY7B9950

Document #: 38-07338 Rev. *D

Page 7 of 12

AC Test Loads and Waveforms

Figure 2. AC Test Loads

Figure 3. Output Waveforms

Figure 4. Test Waveforms

Output

20 pF

Output

20 pF

150

Ω

150

Ω

VDDQ

For Lock Output

For All Other Outputs

2.0V

0.8V

VTH =1.5V

t

PW L

t

PWH

t

ORISE

t

OFALL

3.3V LVTTL OUTPUT WAVEFORM

2.5V LVTTL OUTPUT WAVEFORM

1.7V

0.7V

VTH =1.25V

t

PWL

t

PWH

t

ORISE

t

OFALL

2.0V

0.8V

VTH =1.5V

≤1 ns

3.0V

0V

3.3V LVTTL INPUT TEST WAVEFORM

1.7V

0.7V

VTH =1.25V

≤1 ns

2.5V

0V

2.5V LVTTL INPUT TEST WAVEFORM

AC Input Specifications

Parameter

Description

Condition

Min

Max

Unit

TR,TF

Input Rise/Fall Time

0.8V – 2.0V

–

10

ns/V

TPWC

Input Clock Pulse

HIGH or LOW

2

–

ns

TDCIN

Input Duty Cycle

10

90

%

FREF

Reference Input

Frequency

FS = LOW

6

50

MHz

FS = MID

12

100

FS = HIGH

24

200

[+] Feedback

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