
7
LTC1745
1745f
2nd and 3rd Harmonic vs Input
Frequency, 3.2V Range, –1dB
TYPICAL PERFOR A CE CHARACTERISTICS
UW
2nd and 3rd Harmonic vs Input
Frequency, 2V Range, –1dB
Worst Harmonic 4th or Higher vs
Input Frequency, 3.2V Range, –1dB
Worst Harmonic 4th or Higher vs
Input Frequency, 2V Range, –1dB
SFDR vs Input Amplitude,
2V Range, 5MHz Input Frequency
INPUT FREQUENCY (MHz)
0
DISTORTION
(dB) –70
–50
–30
80
1745 G17
–90
–110
–130
10 20 30 40 50 60 70
90 100
2ND HARMONIC
3RD HARMONIC
INPUT FREQUENCY (MHz)
0
DISTORTION
(dB) –70
–50
–30
40
1745 G18
–90
–110
–130
30
50
2ND HARMONIC
3ND HARMONIC
INPUT FREQUENCY (MHz)
0
DISTORTION
(dB) –80
–70
–60
80
1746 G19
–90
–100
–110
10 20 30 40 50 60 70
90 100
INPUT FREQUENCY (MHz)
0
DISTORTION
(dB) –80
–70
–60
100
1745 G20
–90
–100
–110
50
150
200
INPUT AMPLITUDE (dBFS)
–60
SFDR
(dBc
AND
dBFS)
80
90
SFDR dBFS
SFDR dBc
1745 G21
70
60
–40
–20
0
110
100
Power vs Sample Rate,
Input Frequency = 5MHz
SAMPLE RATE (Msps)
0
300
POWER
(mW)
340
380
420
10
20
30
40
1745 G22
50
460
500
320
360
400
440
480
60
2V RANGE
3.2V RANGE