
7
LTC1750
1750f
TYPICAL PERFOR A CE CHARACTERISTICS
UW
8192 Point FFT, fIN = 250.2MHz,
–10dB, PGA = 1
8192 Point FFT, fIN = 250.2MHz,
–20dB, PGA = 1
8192 Point 2-Tone FFT,
fIN = 26.4MHz and 27.5MHz,
–7dB Each Tone, PGA = 1
8192 Point 2-Tone FFT,
fIN = 69.4MHz and 65.2MHz,
–7dB Each Tone, PGA = 1
SFDR vs 15MHz Input Level
INPUT LEVEL (dBFS)
–80
SFDR
(dBc
AND
dBFS)
60
90
100
0
1750 G20
50
40
0
–60
–40
–20
–70
–50
–30
–10
20
120
110
80
70
30
10
SFDR vs 40.2MHz Input Level
INPUT LEVEL (dBFS)
–80
SFDR
(dBc
AND
dBFS)
60
90
100
0
1750 G21
50
40
0
–60
–40
–20
–70
–50
–30
–10
20
120
110
80
70
30
10
SFDR vs 140.2MHz Input Level,
PGA = 0
INPUT LEVEL (dBFS)
–80
SFDR
(dBc
AND
dBFS)
60
90
100
0
1750 G22
50
40
0
–60
–40
–20
–70
–50
–30
–10
20
120
110
80
70
30
10
SFDR vs 250.2MHz Input Level,
PGA = 0
INPUT LEVEL (dBFS)
–80
SFDR
(dBc
AND
dBFS)
60
90
100
0
1750 G23
50
40
0
–60
–40
–20
–70
–50
–30
–10
20
120
110
80
70
30
10
SNR vs Input Frequency and
Amplitude, PGA = 0
INPUT FREQUENCY (MHz)
0
70
SNR
(dBFS)
71
72
73
74
76
50
100
150
200
1750 G24
250
300
75
–1dB
–10dB
–20dB
FREQUENCY (MHz)
0
AMPLITUDE
(dBFS)
–60
–30
–20
40
1750 G16
–70
–80
–120
10
20
30
5
15
25
35
–100
0
–10
–40
–50
–90
–110
FREQUENCY (MHz)
0
AMPLITUDE
(dBFS)
–60
–30
–20
40
1750 G17
–70
–80
–120
10
20
30
5
15
25
35
–100
0
–10
–40
–50
–90
–110
FREQUENCY (MHz)
0
AMPLITUDE
(dBFS)
–60
–30
–20
40
1750 G18
–70
–80
–120
10
20
30
5
15
25
35
–100
0
–10
–40
–50
–90
–110
FREQUENCY (MHz)
0
AMPLITUDE
(dBFS)
–60
–30
–20
40
1750 G19
–70
–80
–120
10
20
30
5
15
25
35
–100
0
–10
–40
–50
–90
–110