4

ClockWorks™

SY89420V

Micrel

S3B

S2B

S1B

Divide-by-N

Output Frequency Range (MHz)

0

0

0

N =2

240 – 560

0

0

1

N = 4

120 – 280

0

1

0

N = 8

60 – 140

0

1

1

N = 16

30– 70

1

0

0

N = 1

480 – 1120

1

0

1

N = 10

48 – 112

1

1

0

N = 12

40 – 93.3

1

1

1

N = 20

24 – 56

S2A

S1A

Divide-by-N

Output Frequency Range (MHz)

0

0

N = 2

240 – 560

0

1

N = 4

120 – 280

1

0

N = 8

60 – 140

1

1

N = 16

30 – 70

FREQUENCY SELECTION TABLE

PLLA

PLLB

S4B

Divide-by-P

Max. Feedback Frequency (MHz)

0

P =1

560

1

P = 2

1120

Symbol

Parameter

Value

Unit

Power Supply Voltage

–0.5 to +7.0

V

–0.5 to 6.0

V

–30 to +5.0

mA

ECL Output Current

mA

— Continuous

50

— Surge

100

Storage Temperature

–65 to +150

°C

0 to +85

°C

NOTES:

1. Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are exceeded. This is a stress rating only and functional operation is not

implied at conditions other than those detailed in the operational sections of this data sheet. Exposure to ABSOLUTE MAXIMUM RATING conditions

for extended periods may affect device reliability.

2. Either voltage limit or current limit is sufficient to protect input.

3. All DC and AC electrical characteristics are specified over the operating temperature range.