MAX12559 Datasheet, PDF (8/30 Pages) Maxim Integrated Products – Dual, 96Msps, 14-Bit, IF/Baseband ADC

Dual, 96Msps, 14-Bit, IF/Baseband ADC
Typical Operating Characteristics (continued)
(V_DD = 3.3V, OV_DD = 2.0V, GND = 0, REFIN = REFOUT (internal reference), C_L ≈ 5pF at digital outputs, V_IN = -1dBFS (differential),
DIFFCLK/SECLK = OV_DD, PD = GND, G/T = GND, f_CLK = 96MHz (50% duty cycle), T_A = +25°C, unless otherwise noted.)
FFT PLOT (65,536-POINT DATA RECORD)
0
f_CLK = 96MHz
f_IN = 175.00049MHz
-20
A_IN = -1.00dBFS
SNR = 72.4dB
-40
SINAD = 71.4dB
THD = -78.3dBc
SFDR = 79.9dBc HD2
-60
HD2 = -80.9dBc
HD3 = -91.3dBc HD3
-80
TWO-TONE IMD PLOT
(65,536-POINT DATA RECORD)
0
f_CLK = 96MHz
f_IN1 = 68.50049MHz
-20 _{AIN1 = -7.00dBFS}
f_IN2 = 71.50049MHz
-40 ^{AIN2 = -7.04dBFS}
IM3 = -84.30dBc
-60
f_IN2
f_IN1
-80
2f_{IN2 -} f_IN1
2f_{IN1 -} f_IN2
TWO-TONE IMD PLOT
(65,536-POINT DATA RECORD)
0
-20
-40
f_IN2
f_CLK = 96MHz
f_IN1 = 172.50146MHz
A_IN1 = -7.04dBFS
f_IN2 = 177.50244MHz
A_IN2 = -6.99dBFS
IM3 = -84.6dBc
-60
f_IN1
-80 ^{2fIN2 - fIN1}
2f_IN1 - f_IN2
-100
-100
-100
-120
0
5 10 15 20 25 30 35 40 45
ANALOG INPUT FREQUENCY (MHz)
-120
0
5 10 15 20 25 30 35 40 45
ANALOG INPUT FREQUENCY (MHz)
-120
0
5 10 15 20 25 30 35 40 45
ANALOG INPUT FREQUENCY (MHz)
INTEGRAL NONLINEARITY
vs. DIGITAL OUTPUT CODE
4
f_IN = 2.99906MHz
3
2
1
0
-1
-2
-3
-4
1 2049 4097 6145 8193 10,24112,28914,33716,381
DIGITAL OUTPUT CODE
-THD, SFDR vs. ANALOG INPUT FREQUENCY
(f_CLK = 96MHz, A_IN = -1dBFS)
90
85
SFDR
80
75
-THD
70
65
60
55
50
0
50 100 150 200 250 300 350
f_IN (MHz)
DIFFERENTIAL NONLINEARITY
vs. DIGITAL OUTPUT CODE
1.00
f_IN = 2.99906MHz
0.75
0.50
0.25
0
-0.25
-0.50
-0.75
-1.00
1 2049 4097 6145 8193 10,24112,28914,33716,381
DIGITAL OUTPUT CODE
SNR, SINAD vs. ANALOG INPUT AMPLITUDE
(f_CLK = 96MHz, f_IN = 70MHz)
75
70
65
SNR
60
55
50
45
40
SINAD
35
30
25
20
15
-60 -55 -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0
A_IN (dBFS)
SNR, SINAD vs. ANALOG INPUT FREQUENCY
(f_CLK = 96MHz, A_IN = -1dBFS)
80
75
SNR
70
65
SINAD
60
55
50
0
50 100 150 200 250 300 350
f_IN (MHz)
-THD, SFDR vs. ANALOG INPUT AMPLITUDE
(f_CLK = 96MHz, f_IN = 70MHz)
90
85
80
SFDR
75
70
65
60
-THD
55
50
45
40
35
30
-55 -50 -45 -40 -35 -30 -25 -20 15 -10 -5 0
A_IN (dBFS)
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