Rainbow-electronics MAX1211 Instrukcja Użytkownika Pobierz pdf (Strona 10)

MAX1211

65Msps, 12-Bit, IF Sampling ADC

10 ______________________________________________________________________________________

Typical Operating Characteristics (continued)

= 3.3V, OV

= 2.0V, GND = 0, REFIN = REFOUT (internal reference), C

REFOUT

= 0.1µF, C

≈ 5pF at digital outputs, differential

input at -0.5dBFS, DCE = high, CLKTYP = high, PD = low, G/T = low, f

CLK

≈ 65MHz (50% duty cycle), C

REFP

= C

REFN

= 0.1µF to GND,

1µF in parallel with 10µF between REFP and REFN, C

COM

= 0.1µF in parallel with 2.2µF to GND, T

= +25°C, unless otherwise noted.)

30 40 45 5035 55 60 65 70

SIGNAL-TO-NOISE RATIO

vs. SAMPLING RATE

MAX1211 toc13

CLK

(MHz)

SNR (dB)

≈ 250MHz

DIFFERENTIAL CLOCK

SINGLE-ENDED CLOCK

30 40 45 5035 55 60 65 70

SIGNAL-TO-NOISE DISTORTION

vs. SAMPLING RATE

MAX1211 toc14

CLK

(MHz)

SINAD (dB)

≈ 250MHz

DIFFERENTIAL CLOCK

SINGLE-ENDED CLOCK

-90

-80

-85

-70

-75

-60

-65

-55

-50

30 40 45 5035 55 60 65 70

TOTAL HARMONIC DISTORTION

vs. SAMPLING RATE

MAX1211 toc15

CLK

(MHz)

THD (dBc)

≈ 250MHz

SINGLE-ENDED CLOCK

DIFFERENTIAL CLOCK

30 4035 45 50 55 60 65 70

SPURIOUS-FREE DYNAMIC RANGE

vs. SAMPLING RATE

MAX1211 toc16

CLK

(MHz)

SFDR (dBc)

≈ 250MHz

DIFFERENTIAL CLOCK

SINGLE-ENDED CLOCK

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 29 30

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