2

SP8720

ELECTRICAL CHARACTERISTICS

Unless otherwise stated, the Electrical Characteristics are guaranteed over specified supply, frequency and temperature range

Temperature, T

Characteristic

Maximum frequency (sinewave input)

Minimum frequency (sinewave input)

Power supply current

Output high voltage

Output low voltage

PE input high voltage

PE input low voltage

Clock to output delay

Set-up time

Release time

Symbol

300

2

0·85

2

1·8

2

0·93

2·5

3

Min.

Max.

40

65

2

0·7

2

1·5

2

1·62

6

Value

Units

Input = 400-800mV p-p

Input = 400-800mV p-p

Conditions

Notes

MHz

MHz

mA

V

V

V

V

ns

ns

ns

5

5

5

6

3, 6

4, 6

NOTES

2. The test configuration for dynamic testing is shown in Fig.6.

to ensure that the 43 mode is obtained.

to ensure that the 44 mode is obtained.

5. SP8720B tested at 25

°C only.

6. Guaranteed but not tested.

L

H

L

H

PE1

L

L

H

H

TRUTH TABLE FOR

CONTROL INPUTS

4

3

3

3

PE2

Division ratio

2000

1600

1200

800

400

0

0

100

200

300

400

INPUT FREQUENCY (MHz)

in table of Electrical

Characteristics

OPERATING

WINDOW

Fig. 4 Typical input characteristic of SP8720A

Fig. 3 Timing diagram

2

1

CLOCK INPUT

PE INPUT

OUTPUT

2

2