Rainbow-electronics MAX1207 Bedienungsanleitung PDF herunterladen (Seite 12)

MAX1207

65Msps, 12-Bit ADC

12 ______________________________________________________________________________________

Typical Operating Characteristics (continued)

= 3.3V, OV

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

REFOUT

= 0.1µF, C

≈ 5pF at digital outputs, V

= -0.5dBFS

differential input, 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.)

20 4030 50 60 70 80

SIGNAL-TO-NOISE RATIO

vs. CLOCK DUTY CYCLE

MAX1207 toc24

CLOCK DUTY CYCLE (%)

SNR (dB)

SINGLE-ENDED CLOCK

= 32.1271954MHz

DCE = HIGH

DCE = LOW

20 4030 50 60 70 80

SIGNAL-TO-NOISE + DISTORTION

vs. CLOCK DUTY CYCLE

MAX1207 toc25

CLOCK DUTY CYCLE (%)

SINAD (dB)

SINGLE-ENDED CLOCK

= 32.1271954MHz

DCE = HIGH

DCE = LOW

-100

-90

-95

-80

-85

-70

-75

-65

20 40 5030 60 70 80

TOTAL HARMONIC DISTORTION

vs. CLOCK DUTY CYCLE

MAX1207 toc26

CLOCK DUTY CYCLE (%)

THD (dBc)

DCE = LOW

DCE = HIGH

SINGLE-ENDED CLOCK

= 32.1271954MHz

100

20 40 5030 60 70 80

SPURIOUS-FREE DYNAMIC RANGE

vs. CLOCK DUTY CYCLE

MAX1207 toc27

CLOCK DUTY CYCLE (%)

SFDR (dBc)

DCE = LOW

DCE = HIGH

SINGLE-ENDED CLOCK

= 32.1271954MHz

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 28 29

65Msps, 12-Bit ADC 1

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