
7
LTC1742
1742f
TYPICAL PERFOR A CE CHARACTERISTICS
UW
8192 Point 2-Tone FFT,
Input Frequency = 5MHz and
7MHz, –7dB, 3.2V Range
8192 Point FFT,
Input Frequency = 70MHz,
–20dB, 3.2V Range
8192 Point FFT,
Input Frequency = 70MHz,
–10dB, 3.2V Range
8192 Point 2-Tone FFT,
Input Frequency = 25MHz and
30MHz, –7dB, 3.2V Range
8192 Point 2-Tone FFT,
Input Frequency = 68MHz and
70MHz, –7dB, 3.2V Range
SFDR vs 15MHz Input Level
SFDR vs 30MHz Input Level
SFDR vs 50MHz Input Level
SFDR vs 70MHz Input Level
FREQUENCY (MHz)
0
AMPLITUDE
(dBFS)
–60
–30
–20
1742 G16
–70
–80
–120
10
20
30
5
15
25
–100
0
–10
–40
–50
–90
–110
TA = 25°C
FREQUENCY (MHz)
0
AMPLITUDE
(dBFS)
–60
–30
–20
1742 G17
–70
–80
–120
10
20
30
5
15
25
–100
0
–10
–40
–50
–90
–110
TA = 25°C
FREQUENCY (MHz)
0
AMPLITUDE
(dBFS)
–60
–30
–20
1742 G18
–70
–80
–120
10
20
30
5
15
25
–100
0
–10
–40
–50
–90
–110
TA = 25°C
FREQUENCY (MHz)
0
AMPLITUDE
(dBFS)
–60
–30
–20
1742 G19
–70
–80
–120
10
20
30
5
15
25
–100
0
–10
–40
–50
–90
–110
TA = 25°C
FREQUENCY (MHz)
0
AMPLITUDE
(dBFS)
–60
–30
–20
1742 G20
–70
–80
–120
10
20
30
5
15
25
–100
0
–10
–40
–50
–90
–110
TA = 25°C
INPUT LEVEL (dBFS)
–80
SFDR
(dBc
AND
dBFS)
60
90
100
0
1742 G21
50
40
0
–60
–40
–20
–70
–50
–30
–10
20
120
110
dBFS
TA = 25°C
dBc
80
70
30
10
INPUT LEVEL (dBFS)
–80
SFDR
(dBc
AND
dBFS)
60
90
100
0
1742 G22
50
40
0
–60
–40
–20
–70
–50
–30
–10
20
120
110
80
70
30
10
dBFS
dBc
TA = 25°C
INPUT LEVEL (dBFS)
–80
SFDR
(dBc
AND
dBFS)
60
90
100
0
1742 G23
50
40
0
–60
–40
–20
–70
–50
–30
–10
20
120
110
80
70
30
10
dBFS
dBc
TA = 25°C
INPUT LEVEL (dBFS)
–80
SFDR
(dBc
AND
dBFS)
60
90
100
0
1742 G24
50
40
0
–60
–40
–20
–70
–50
–30
–10
20
120
110
80
70
30
10
dBFS
dBc
TA = 25°C