MAX7387 datasheet(4/10 Pages) MAXIM

Part #	MAX7387

Description	Speed-Switching Clock Generator with Power Fail

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Manufacturer	MAXIM [Maxim Integrated Products]

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Speed-Switching Clock Generator

with Power Fail

4

_______________________________________________________________________________________

Typical Operating Characteristics

(Typical Application Circuit, VCC = +5V, fCLOCK = 16MHz, TA = +25°C, unless otherwise noted.)

FREQUENCY vs. SUPPLY VOLTAGE

VCC (V)

4.85

4.20

3.55

0.990

1.000

1.010

1.020

0.980

2.90

5.50

NORMALIZED TO VCC = 5V

VTH+ = 2.9V

FREQUENCY vs. TEMPERATURE

TEMPERATURE (

°C)

110

95

80

65

50

35

20

5

-10

-25

0.990

1.000

1.010

1.020

1.030

1.040

0.980

-40

125

NORMALIZED TO TA = +25

°C

DUTY CYCLE vs. SUPPLY VOLTAGE

VCC (V)

4.85

4.20

3.55

49

50

51

52

48

2.90

5.50

VTH+ = 2.9V

DUTY CYCLE vs. TEMPERATURE

49

50

51

52

48

TEMPERATURE (

°C)

110

95

80

65

50

35

20

5

-10

-25

-40

125

CLOCK OUTPUT WAVEFORM

WITH CL = 10pF

MAX7391 toc05

40ns/div

CLOCK

1V/div

VCC = 3.3V

CLOCK OUTPUT WAVEFORM

WITH CL = 50pF

MAX7391 toc06

40ns/div

CLOCK

1V/div

VCC = 3.3V

CLOCK OUTPUT WAVEFORM

WITH CL = 100pF

MAX7391 toc07

40ns/div

CLOCK

1V/div

SUPPLY CURRENT vs. TEMPERATURE

2

3

4

5

1

TEMPERATURE (

°C)

110

95

80

65

50

35

20

5

-10

-25

-40

125

VCC = 5V

VCC = 3.3V

SUPPLY CURRENT vs. SUPPLY VOLTAGE

VCC (V)

4.85

4.20

3.55

2

3

4

5

1

2.90

5.50

VTH+ = 2.9V

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