TYPICAL PERFORMANCE CHARACTERISTICS
SNR, SINAD vs Encode Pulsewidth
60
SFDR, THD vs Encode Pulsewidth
30
55
IN = 70.1 MHz
35
S = 200 MSPS
IN = 70.1 MHz
S = 200 MSPS
50
40
SNR
45
45
THD
SINAD
40
50
SFDR
35
55
30
60
25
65
20
1.0
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0
1.5
2.0
2.5
3.0
3.5
Encode Pulsewidth (nS)
DLE vs Sample Rate
IN = 70.1 MHz
50
100
150
200
250
Sample Rate (MSPS)
DLE vs VDD
0.7
0.6
IN = 70.1 MHz
0.5
S = 200 MSPS
0.4
0.3
0.2
0.1
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5
Volts
70
1.0
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
40 25
1.5
2.0
2.5
3.0
3.5
Encode Pulsewidth (nS)
DLE vs Temperature
IN = 70.1 MHz
S = 200 MSPS
0
25
50
75
100
Temperature (Degrees C)
Supply Current vs Temperature
120
IN = 70.1 MHz
S = 200 MSPS
100
80
60
40
40 25
0
25
50
75
100
Temperature (Degrees C)
SPT
6
SPT7720
5/9/01