MAX12557 查看數據表（PDF） - Maxim Integrated
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MAX12557 Datasheet PDF : 28 Pages
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Dual, 65Msps, 14-Bit, IF/Baseband ADC
Typical Operating Characteristics (continued)
(VDD = 3.3V, OVDD = 2.0V, GND = 0, REFIN = REFOUT (internal reference mode), CL ≈ 5pF at digital outputs, VIN = -0.5dBFS,
DIFFCLK/SECLK = OVDD, PD = GND, G/T = GND, fCLK = 65MHz (50% duty cycle), TA = +25°C, unless otherwise noted.)
SNR, SINAD vs. ANALOG INPUT AMPLITUDE
(fCLK = 65.00352MHz, fIN = 175MHz)
80
SNR
70
60
SINAD
50
40
30
-THD, SFDR vs. ANALOG INPUT AMPLITUDE
(fCLK = 65.00352MHz, fIN = 175MHz)
95
85
SFDR
75
65
-THD
55
45
SNR, SINAD vs. CLOCK SPEED
(fIN = 70MHz, AIN = -0.5dBFS)
80
76
SNR
72
SINAD
68
64
20
-55 -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0
AIN (dBFS)
-THD, SFDR vs. CLOCK SPEED
(fIN = 70MHz, AIN = -0.5dBFS)
90
SFDR
85
80
-THD
75
70
65
35
-55 -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0
AIN (dBFS)
SNR, SINAD vs. CLOCK SPEED
(fIN = 175MHz, AIN = -0.5dBFS)
80
76
SNR
72
68
SINAD
64
60
20 25 30 35 40 45 50 55 60 65
fCLK (MHz)
-THD, SFDR vs. CLOCK SPEED
(fIN = 175MHz, AIN = -0.5dBFS)
90
85
SFDR
80
75
-THD
70
65
60
20 25 30 35 40 45 50 55 60 65
fCLK (MHz)
SNR, SINAD vs. ANALOG SUPPLY VOLTAGE
(fCLK = 65.00352MHz, fIN = 70MHz)
80
SNR
76
72
SINAD
68
64
60
3.0 3.1 3.2 3.3 3.4 3.5 3.6
VDD (V)
60
20 25 30 35 40 45 50 55 60 65
fCLK (MHz)
-THD, SFDR vs. ANALOG SUPPLY VOLTAGE
(fCLK = 65.00352MHz, fIN = 70MHz)
95
90
SFDR
85
80
-THD
75
70
65
60
3.0 3.1 3.2 3.3 3.4 3.5 3.6
VDD (V)
60
20 25 30 35 40 45 50 55 60 65
fCLK (MHz)
SNR, SINAD vs. ANALOG SUPPLY VOLTAGE
(fCLK = 65.00352MHz, fIN = 175MHz)
75
SNR
72
69
SINAD
66
63
60
3.0 3.1 3.2 3.3 3.4 3.5 3.6
VDD (V)
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