Typical operating characteristics, 3v, t – Rainbow Electronics DS1087L User Manual

Page 6

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DS1087L

3.3V Spread-Spectrum EconOscillator

6

_____________________________________________________________________

FREQUENCY % CHANGE vs.

SUPPLY VOLTAGE

DS1087L toc07

VOLTAGE (V)

FREQUENCY % CHANGE (FROM 3.3V)

3.5

3.4

3.2 3.3

2.9 3.0 3.1

2.8

-0.80

-0.60

-0.40

-0.20

0

0.20

0.40

0.60

0.80

1.00

-1.00

2.7

3.6

OUTPUT LOADED WITH
12pF OSCILLOSCOPE PROBE
FREQUENCY = 66.6MHz

FREQUENCY % CHANGE vs.

TEMPERATURE

DS1087L toc08

TEMPERATURE (

°C)

FREQUENCY % CHANGE (FROM 25

°C)

80

70

60

50

40

30

20

10

0

-10

-20

-30

-1.00

-0.50

0

0.50

1.00

1.50

-1.50

-40

90

V

CC

= 3.3V

FREQUENCY = 66.6MHz
OUTPUT LOADED WITH
12pF OSCILLOSCOPE PROBE

ACTIVE SUPPLY CURRENT

vs. SCL FREQUENCY

SCL FREQUENCY (kHz)

SUPPLY CURRENT (mA)

300

200

100

1

2

3

4

5

6

7

0

0

400

DS1087L toc09

V

CC

= SDA = 3.3V

FREQUENCY = 66.6MHz
OUTPUT UNLOADED

DUTY CYCLE vs. VOLTAGE

DS1087L toc10

VOLTAGE (V)

DUTY CYCLE (%)

3.5

3.4

3.2 3.3

2.9 3.0 3.1

2.8

51

52

53

54

55

56

57

58

59

60

50

2.7

3.6

FREQUENCY = 66.6MHz
T

A

= +25

°C

OUTPUT LOADED WITH
12pF OSCILLOSCOPE PROBE

TEMPERATURE (

°C)

60

50

30

40

20

10

0

70

DUTY CYCLE vs. TEMPERATURE

DS1087L toc11

DUTY CYCLE (%)

51

52

53

54

55

56

57

58

59

60

50

V

CC

= 3.3V

FREQUENCY = 66.6MHz
OUTPUT LOADED WITH
12pF OSCILLOSCOPE PROBE

Typical Operating Characteristics

(V

CC

= 3.3V, T

A

= +25°C, unless otherwise noted.)

1

2

3

4

5

6

0

SUPPLY CURRENT vs. PRESCALER

DS1087L toc04

PRESCALER (DECIMAL)

100

10

1

1000

CURRENT (mA)

V

CC

= 3.3V

OUPUT UNLOADED

-40

°C, +25°C, +85°C

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

0

SUPPLY CURRENT

vs. TEMPERATURE WITH OE = 0

DS1087L toc05

TEMPERATURE (

°C)

CURRENT (mA)

80

70

60

50

40

30

20

10

0

-10

-20

-30

-40

90

FREQUENCY = 66.6MHz

V

CC

= 2.7V

OUTPUT UNLOADED

FREQUENCY = 206.4kHz

SHUTDOWN SUPPLY CURRENT

vs. TEMPERATURE

DS1087L toc06

TEMPERATURE (

°C)

CURRENT (

µ

A)

80

70

50 60

-10 0 10 20 30 40

-30 -20

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

0

-40

90

V

CC

= 3.3V

OUTPUT UNLOADED

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