PI6C9930 Ver la hoja de datos (PDF) - Pericom Semiconductor

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PI6C9930

3.3V Zero-Delay Clock Buffer

Pericom Semiconductor 

PI6C9930

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Switching Characteristics Over Operating Range(14)

(Commercial: TA = 0°C to 70°C, VCC = 3.3V ± 10%)

Symbol

Description

Min. Typ. Max. Units

fNOM

Operation Clock FS = LOW

Frequency in MHz FS = HIGH or Floating

25

50

50

MHz

100

tRPWH REF Pulse Width HIGH

5.0

tRPWL

tSKEW

tDEV

REF Pulse Width LOW

Zero Output Skew (All Outputs)(7,8)

Device-to-Device Skew(9,10)

5.0

0.3 0.6

ns

1.2

tPD Propagation delay, REF Rise to FB Rise

-0.5 0.0 +0.5

tCYC

sRATE

tLOCK

Output Duty Cycle, Target Spec @ 66MHz

Slew Rate(11,12)

PLL Lock Time(13)

45 50 55

%

1 1.5 4 V/ns

0.5 ms

tJR Cycle-to-Cycle Output Jitter

325 ps

Notes:

7. Skew is defined as the time between the earliest and the latest output transition among all

outputs with AC Test Load.

8. tSKEW is defined as the skew between outputs.

9. tDEV is the output-to-output skew between any two outputs on separate devices operating

under the same conditions (VCC, ambient temperature, air flow, etc.).

10. Tested initially and after any design or process changes that may affect these parameters.

11. Specified with outputs loaded without 20pF in AC Test Load.

12. Slew Rate (sRATE) measured between 0.3VCC and 0.5VCC (0.99V and 1.65V).

13. tLOCK is the time that is required before synchronization is achieved. This specification is

valid only after VCC is stable and within normal operating limits. This parameter is measured

from the application of a new signal or frequency at REF or FB until tPD is within specified

limits.

14. Test measurement levels for the PI6C9930 are PCI levels (0.4VCC to 0.4VCC). Test

conditions assume signal transition times of 2ns or less and output loading as shown in the

AC Test Loads and Waveforms unless otherwise specified.

Ordering Information

P/N

Description

PI6C9930H

24 pin SSOP Package

PI6C9930Q

24 pin QSOP Package

PI6C9930S

24 pin SOIC Package

Pericom Semiconductor Corporation

2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com

181

PS8096B 01/25/99

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