ICS9214 Просмотр технического описания (PDF) - Integrated Circuit Systems

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ICS9214

Rambus™ XDR™ Clock Generator

Integrated Circuit Systems 

Integrated

Circuit

Systems, Inc.

ICS9214

Power Sequencing

Supply voltages for the ICS9214 must be applied before, or at the same time and external input and output signals.

ODCLK_T

ODCLK_C

ODCLK_T

ODCLK_C

ODCLK_T

ODCLK_C

tCYCLE,i

tCYCLE,i+1

tJ = tCYCLE, - tCYCLE, i+1 over 10,000 consecutive cycles

Figure 5. Cycle-to-cycle Jitter

t4CYCLE, i

t4CYCLE, i+1

tJ = t4CYCLE, i - t4CYCLE i+1 over 10,000 consecutive cycles

Figure 6. Short-term Jitter

Cycle (i)

Cycle (i+1)

tPW- (i)

tCYCLE (i)

tPW+ (i)

tPW- (i+1)

tCYCLE (i+1)

tPW+ (i+1)

tDC,ERR = tPW+(i) - tPW+(i+1) and tPW-(i) - tPW-(i+1)

Figure 7. Cycle-to-cycle Duty Cycle Error

0809D—04/07/06

fNOM

(1-PM,IN)*fNOM

0.5/fM,IN 1/fM,IN

t

Figure 8. Input frequency Modulation

13

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