TYPICAL PERFORMANCE CHARACTERISTICS
SNR vs Input Frequency
80
THD vs Input Frequency
80
70
70
fs = 20 MSPS
Signal-to-Noise Ratio (dB)
60
Total Harmonic Distortion (dB)
fs = 20 MSPS
60
50
50
40
40
30
30
20
100
101
102
20
100
101
102
Input Frequency (MHz)
Input Frequency (MHz)
SINAD vs Input Frequency
80
SNR, THD, SINAD vs Sample Rate
80
Signal-to-Noise and Distortion (dB)
70
70
SNR, THD
60
SNR, THD, SINAD (dB)
fs =20 MSPS
60
50
50
f
IN = 1 MHz
40
SINAD
40
30
30
20
100
101
102
20
100
101
102
Input Frequency (MHz)
Sample Rate (MSPS)
Spectral Response
0
SNR, THD, SINAD vs Temperature
65
fS = 20 MSPS
fIN = 1 MHz
60
SNR
SNR
-30
SNR, THD, SINAD (dB)
Amplitude (dB)
THD
55
THD
SINAD
-60
50
-90
f
S = 20 MSPS
f
IN = 1 MHz
45
-120
0
1
2
3
4
5
6
7
8
9
10
40
-25
0
+25
+50
+75
Input Frequency (MHz)
Temperature (°C)
SPT7820
5
3/11/97
CADEKA [ CADEKA MICROCIRCUITS LLC. ]
