MAX19706 データシートの表示（PDF） - Maxim Integrated
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MAX19706 Datasheet PDF : 37 Pages
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10-Bit, 22Msps, Ultra-Low-Power
Analog Front-End
Typical Operating Characteristics (continued)
(VDD = 3V, OVDD = 1.8V, internal reference (1.024V), CL ≈ 10pF on all digital outputs, fCLK = 22MHz (50% duty cycle), Rx ADC input
amplitude = -0.5dBFS, Tx DAC output amplitude = 0dBFS, differential Rx ADC input, differential Tx DAC output, CREFP = CREFN =
CCOM = 0.33µF, TA = +25°C, unless otherwise noted.)
Rx ADC SIGNAL-TO-NOISE RATIO
vs. SAMPLING RATE
56.0
fIN = 5.468363MHz
55.5
QA
Rx ADC SIGNAL-TO-NOISE AND DISTORTION
RATIO vs. SAMPLING RATE
56.0
fIN = 5.468363MHz
55.5
QA
Rx ADC TOTAL HARMONIC DISTORTION
vs. SAMPLING RATE
-70
-71 fIN = 5.468363MHz
-72
55.0
55.0
54.5
IA
54.5
-73
-74
IA
IA
-75
-76
54.0
54.0
-77
QA
53.5
53.0
1.5 4.0 6.5 9.0 11.5 14.0 16.5 19.0 21.5
SAMPLING RATE (MHz)
53.5
53.0
1.5 4.0 6.5 9.0 11.5 14.0 16.5 19.0 21.5
SAMPLING RATE (MHz)
-78
-79
-80
1.5 4.0 6.5 9.0 11.5 14.0 16.5 19.0 21.5
SAMPLING RATE (MHz)
Rx ADC SPURIOUS-FREE DYNAMIC RANGE
vs. SAMPLING RATE
85
84
83
fIN = 5.468363MHz
82
81
QA
80
79
78
77
76
IA
75
74
73
72
71
70
1.5 4.0 6.5 9.0 11.5 14.0 16.5 19.0 21.5
SAMPLING RATE (MHz)
Rx ADC SIGNAL-TO-NOISE RATIO
vs. CLOCK DUTY CYCLE
56.0
55.5 fIN = 5.468363MHz
QA
55.0
54.5
54.0
IA
53.5
53.0
52.5
52.0
51.5
51.0
50.5
50.0
35 40 45 50 55 60 65
CLOCK DUTY CYCLE (%)
Rx ADC SIGNAL-TO-NOISE AND DISTORTION
RATIO vs. CLOCK DUTY CYCLE
56.0
55.5 fIN = 5.468363MHz
55.0
54.5
54.0
IA
QA
53.5
53.0
52.5
52.0
51.5
51.0
50.5
50.0
35 40 45 50 55 60 65
CLOCK DUTY CYCLE (%)
Rx ADC TOTAL HARMONIC DISTORTION
vs. CLOCK DUTY CYCLE
-70
-71 fIN = 5.468363MHz
-72
IA
-73
-74
-75
-76
-77 QA
-78
-79
-80
-81
-82
-83
-84
-85
35 40 45 50 55 60 65
CLOCK DUTY CYCLE (%)
Rx ADC SPURIOUS-FREE DYNAMIC RANGE
vs. CLOCK DUTY CYCLE
85
84
83
fIN = 5.468363MHz
82
81
80
79
78
77
76
75
QA
74
IA
73
72
71
70
35 40 45 50 55 60 65
CLOCK DUTY CYCLE (%)
Rx ADC OFFSET ERROR
vs. TEMPERATURE
0
-0.2
IA
-0.4
-0.6
-0.8
-1.0
-1.2
-1.4
-1.6
QA
-1.8
-2.0
-40 -25 -10 5 20 35 50 65 80
TEMPERATURE (°C)
______________________________________________________________________________________ 11
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