MAX1211 Ver la hoja de datos (PDF) - Maxim Integrated
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MAX1211 Datasheet PDF : 30 Pages
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65Msps, 12-Bit, IF Sampling ADC
Typical Operating Characteristics (continued)
(VDD = 3.3V, OVDD = 2.0V, GND = 0, REFIN = REFOUT (internal reference), CREFOUT = 0.1µF, CL ≈ 5pF at digital outputs, differential
input at -0.5dBFS, DCE = high, CLKTYP = high, PD = low, G/T = low, fCLK ≈ 65MHz (50% duty cycle), CREFP = CREFN = 0.1µF to GND,
1µF in parallel with 10µF between REFP and REFN, CCOM = 0.1µF in parallel with 2.2µF to GND, TA = +25°C, unless otherwise noted.)
SIGNAL-TO-NOISE RATIO
vs. CLOCK DUTY CYCLE
71
70
SINGLE-ENDED CLOCK
fIN = 32.1271954MHz
69
68
67 DCE = HIGH
66
65
64
DCE = LOW
63
62
61
20 30 40 50 60 70 80
CLOCK DUTY CYCLE (%)
SIGNAL-TO-NOISE + DISTORTION
vs. CLOCK DUTY CYCLE
71
70
SINGLE-ENDED CLOCK
fIN = 32.1271954MHz
69
68
67
DCE = HIGH
66
65
64
DCE = LOW
63
62
61
20 30 40 50 60 70 80
CLOCK DUTY CYCLE (%)
TOTAL HARMONIC DISTORTION
vs. CLOCK DUTY CYCLE
-65
-70
DCE = LOW
-75
-80
-85
-90
DCE = HIGH
-95 SINGLE-ENDED CLOCK
fIN = 32.1271954MHz
-100
20 30 40 50 60 70 80
CLOCK DUTY CYCLE (%)
SPURIOUS-FREE DYNAMIC RANGE
vs. CLOCK DUTY CYCLE
100
SINGLE-ENDED CLOCK
95 fIN = 32.1271954MHz
90
85 DCE = HIGH
80
75
DCE = LOW
70
65
20 30 40 50 60 70 80
CLOCK DUTY CYCLE (%)
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