MAX3622 Просмотр технического описания (PDF) - Maxim Integrated

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MAX3622

Low-Jitter, Precision Clock Generator with Two Outputs

Maxim Integrated 

Low-Jitter, Precision Clock Generator

with Two Outputs

Typical Operating Characteristics

(Typical values are at VCC = +3.3V, TA = +25°C, crystal frequency = 25MHz.)

SUPPLY CURRENT vs. TEMPERATURE

150

125

BOTH OUTPUTS ACTIVE AND TERMINATED

100

75

BOTH OUTPUTS ACTIVE AND UNTERMINATED

50

25

0

0 10 20 30 40 50 60 70

AMBIENT TEMPERATURE (°C)

DIFFERENTIAL OUTPUT WAVEFORM

AT 156.25MHz (LVPECL OUTPUT)

MAX3622 toc02

1ns/div

OUTPUT WAVEFORM AT 125MHz

(LVCMOS OUTPUT)

MAX3622 toc03

MEASURED USING 50Ω OSCILLOSCOPE INPUT

THROUGH NETWORK SHOWN IN FIGURE 1

1ns/div

QB PHASE NOISE

(156.25MHz CLOCK FREQUENCY)

-80

-90

-100

-110

-120

-130

-140

-150

-160

0.1

1 10 100 1000 10,000 100,000

OFFSET FREQUENCY (kHz)

QA_C PHASE NOISE

(125MHz CLOCK FREQUENCY)

-80

-90

-100

-110

-120

-130

-140

-150

-160

0.1

1 10 100 1000 10,000 100,000

OFFSET FREQUENCY (kHz)

4 _______________________________________________________________________________________

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