MB88151A 데이터 시트보기 (PDF) - Cypress Semiconductor

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MB88151A

Spread Spectrum Clock Generator

Cypress Semiconductor 

MB88151A

■ AC Characteristics

(Ta = − 40 °C to + 85 °C, VDD = 3.3 V ± 0.3 V, VSS = 0.0 V)

Parameter

Symbol Pin

Conditions

Value

Unit

Min

Typ

Max

Oscillation frequency

fx

XIN,

XOUT

Fundamental

oscillation

8.3

⎯

33.4

MHz

Input frequency

fin

XIN

External clock input

(multiply-by-1, 2)

16.6

⎯

33.4

MHz

Output frequency

fOUT

CKOUT

MB88151A-100

(Multiply by 1)

MB88151A-200

(Multiply by 2)

16.6

⎯

33.4

MHz

33.2

⎯

66.8

Output slew rate

SR

CKOUT

0.4 V to 2.4 V

Load capacitance 15 pF

0.4

⎯

4.0

V/ns

Output clock duty cycle

tDCC

CKOUT

1.5 V

40

⎯

60

%

Modulation period

(Number of input clocks

per modulation)

fMOD

(nMOD)

CKOUT

MB88151A-100,

MB88151A-200

fin/2200

(2200)

fin/1900

(1900)

fin/1600 kHz

(1600) (clks)

Lock-up time

tLK

CKOUT 16.6 MHz to 66.8 MHz

⎯

2

5

ms

Cycle-cycle jitter

MB88151A-100

tJC

CKOUT

MB88151A-200

No load capacitance,

⎯

Ta = + 25 °C, VDD = 3.3 V

⎯

100

ps-rms

Note : The modulation clock stabilization wait time is required after the power is turned on, the IC recovers from power saving, or after

FREQ (frequency range) or ENS (modulation ON/OFF) setting is changed. For the modulation clock stabilization wait time,

assign the maximum value for lock-up time.

Document Number: 002-08311 Rev. *B

Page 13 of 26

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