5

PI6C3622-1

Low Power Spread Spectrum Frequency Multiplier

SSCG-GP Family

PS8944A

01/30/08

Supply Voltage to Ground................................................................... 5.5V

All Inputs and Outputs ...............................................–0.5V to VDD+0.5V

Storage Temperature ............................................................–65 to +150°C

Junction Temperature........................................................................150°C

Soldering Temperature......................................................................260°C

Note:

Stresses greater than those listed under MAXIMUM

RATINGS may cause permanent damage to the device.

This is a stress rating only and functional operation of

the device at these or any other conditions above those

indicated in the operational sections of this specification

is not implied. Exposure to absolute maximum rating

conditions for extended period may affect reliability.

Maximum Ratings

DC Characteristics

VDD = 2.5V ±5%, Ambient Temperature 0 to +70°C

Symbol

Parameter

Conditions

Min.

Typ.

Max

Unit

Operating voltage

2.375

2.5

2.625

V

Input high voltage

2.0

–

–

V

Input low voltage

–

–

0.8

V

Output high voltage

1.8

–

–

V

Output low voltage

–

–

0.6

V

Supply current

27MHz input and no

load

–

–

3.6

mA

Nominal output impedance

Down side buffer

–

50

–

Ω

Nominal output impedance

Up side buffer

–

50

–

Ω

Input capacitance

X1 input pin

–

5

–

pF

Electrical Specification

AC Characteristics

VDD = 2.5V ±5%, Ambient Temperature 0 to +70°C , Fin=27MHz

Symbol

Parameter

Conditions

Min.

Typ.

Max

Unit

CLKIN

Input Frequency

20 MHz≤ Fin ≤40 MHz

20

27

40

MHz

CLKOUT

Output Frequency (1X)

20 MHz≤ Fin ≤40 MHz

20

27

40

MHz

Spreading Ratio (SSON=1)

(S1,S0)=(0,1)

±0.30

%

(S1,S0)=(1,0)

±0.50

(S1,S0)=(1,1)

±0.70

Spreading ratio (SSON=0)

(S1,S0)=(0/1, 0/1)

0

%

Output rise time

Measured from 20% to

–

2.1

–

ns

Output fall time

Measured from 80% to

–

1.9

–

ns

Short term cycle to cycle

jitter

–

200

300

ps

Spreading on/off settle time

30

μs

Input duty cycle

40

50

60

%

Output duty cycle

45

50

55

%