DS4000 Просмотр технического описания (PDF) - Dallas Semiconductor -> Maxim Integrated

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DS4000

Digitally Controlled TCXO

Dallas Semiconductor -> Maxim Integrated 

DS4000 Digitally Controlled TCXO

AC ELECTRICAL CHARACTERISTICS: TCXO

(VCC = 5V ±5%, over the operating temperature range.)

PARAMETER

SYMBOL

CONDITIONS

Output Frequency

Frequency Stability vs.

Temperature

Frequency Stability vs. Voltage

F1

F2

DF/TA

DF/V

CMOS (Note 5)

(Note 6)

Frequency Stability vs. Aging

DF/Yr

F1, F2 Rise and Fall Time, 10% to

90%

tR, tF

Max Output Capacitive Load

CL

MIN TYP MAX UNITS

10

20

MHz

-1.0

+1.0

ppm

±1.0

ppm/V

±1.0

ppm/Yr

4

ns

10

pF

Duty Cycle

tW / t

40

50

60

%

Phase Noise f1 Output (Note 7)

10Hz

100Hz

fN

1kHz

10kHz

100kHz

-85

-115

-129

-134

-139

dBc/Hz

Note 5: F1 is the base frequency as defined by the package markings. F2 is a programmable frequency output. The output frequency of F2 is

derived from the base frequency, F1, by programming the F2 frequency select register and duty cycle (DC) bit in the TCXO control

register. The minimum output frequency is F1 / (28 + 1) with DC = 0 and f1 / [2 x (28 + 1)] with DC = 1.

Note 6: First year typical.

Note 7: 16.384MHz, 5V, +25°C with one of the two outputs enabled.

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