Rainbow Electronics MAX1209 - Manual (Page 7)

MAX1209
12-Bit, 80Msps, 3.3V IF-Sampling ADC
_______________________________________________________________________________________ 7
-100
-30
-40
-10
-20
-70
-80
-90
-50
-60
0
0 4 8 12 16 20 24 28 32 36 40
SINGLE-TONE FFT PLOT
(8192-POINT DATA RECORD)
MAX1209 toc01
FREQUENCY (MHz)
AMPLITUDE (dBFS)
f CLK = 80.00352MHz SINAD = 67.872dB
f
IN
= 69.99331395MHz THD = -82.119dBc
A IN = -0.506dBFS SFDR = 85.522dBc
SNR = 68.039dB
-110
HD2
HD3
HD4
SINGLE-TONE FFT PLOT
(4096-POINT DATA RECORD)
MAX1209 toc02
FREQUENCY (MHz)
AMPLITUDE (dBFS)
f CLK = 80.00352MHz SINAD = 66.010dB
f
IN
= 175.078125MHz THD = -82.976dBc
A IN = -0.500dBFS SFDR = 84.718dBc
SNR = 66.097dB
0 4 8 12 16 20 24 28 32 36 40
HD4 HD2 HD3
-100
-30
-40
-10
-20
-70
-80
-90
-50
-60
0
-110
TWO-TONE FFT PLOT
(16,384-POINT DATA RECORD)
MAX1209 toc03
FREQUENCY (MHz)
AMPLITUDE (dBFS)
f CLK = 80MHz A IN2 = -7.046dBFS
f
IN1
= 68.50098MHz SFDR
TT
= 85.065dBc
A IN1 = -7.049dBFS IMD = -82.255dBc
f IN2 = 71.499MHz IM3 = -86.378dBc
0 4 8 12 16 20 24 28 32 36 40
-100
-30
-40
-10
-20
-70
-80
-90
-50
-60
0
-110
f IN1
f
IN2
2 x f IN1 + f IN2
f
IN1
+ 2 x f
IN2
f IN2 + f IN1
TWO-TONE FFT PLOT
(16,384-POINT DATA RECORD)
MAX1209 toc04
FREQUENCY (MHz)
AMPLITUDE (dBFS)
f CLK = 80MHz A IN2 = -7.017dBFS
f IN1 = 172.4853516MHz SFDR TT = 74.205dBc
A IN1 = -6.976dBFS IMD = -74.108dBc
f IN2 = 177.4853516MHz IM3 = -85.923dBc
0 4 8 12 16 20 24 28 32 36 40
-100
-30
-40
-10
-20
-70
-80
-90
-50
-60
0
-110
f IN1
f IN2
f
IN2
- f
IN1 f IN2 + f IN1
-1.0
-0.6
-0.8
-0.2
-0.4
0.2
0
0.4
0.8
0.6
1.0
0 1024 1536 512 2048 2650 3072 3584 4096
INTEGRAL NONLINEARITY
MAX1209 toc05
DIGITAL OUTPUT CODE
INL (LSB)
-1.0
-0.6
-0.8
-0.2
-0.4
0.2
0
0.4
0.8
0.6
1.0
0 1024 1536 512 2048 2650 3072 3584 4096
DIFFERENTIAL NONLINEARITY
MAX1209 toc06
DIGITAL OUTPUT CODE
DNL (LSB)
Typical Operating Characteristics
(V
DD
= 3.3V, OV
DD
= 2.0V, GND = 0, REFIN = REFOUT (internal reference), V
IN
= -0.5dBFS, CLKTYP = high, DCE = high, PD = low,
G/T = low, f CLK = 80MHz (50% duty cycle), T A = +25°C, unless otherwise noted.)