DS32KHZ Просмотр технического описания (PDF) - Dallas Semiconductor -> Maxim Integrated

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производитель

DS32KHZ

32.768kHz Temperature-Compensated Crystal Oscillator

Dallas Semiconductor -> Maxim Integrated 

AC TIMING CHARACTERISTICS

(Over the operating range, unless otherwise specified.)

PARAMETER

SYMBOL

CONDITIONS

Output Frequency

Frequency Stability vs.

Temperature

Duty Cycle

Cycle Time

High/Low Time

Rise Time

Fall Time

Oscillator Startup Time

Frequency Stability vs.

Operating Voltage

Crystal Aging (First Year)

fOUT

∆f/fO

tW/t

tCYC

tH/tL

tR

tF

tOSC

∆f/V

∆f/fO

0°C to +40°C

-40°C to +85°C or

0°C to +70°C

(Note 8)

(Note 8)

(Note 8)

(Note 8)

(Note 8)

VCC = 5.0V or

VBAT = 3.0V, VCC = 0V

(Notes 4, 9)

(Notes 4, 10)

DS32kHz

MIN TYP MAX UNITS

32.768

kHz

-2.0

+2.0

ppm

-7.5

+7.5

45

50

55

%

30.518

μs

15.06

μs

200

ns

60

ns

1

seconds

+2.5

ppm/V

±1.0

ppm

Note 8:

Note 9:

Note 10:

These parameters are measured using a 15pF load.

Error is measured from the nominal supply voltage of whichever supply is powering the device.

After reflow.

Figure 1. DS32kHz Output Waveform

3 of 8

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