Datasheet

6
LTC1404
1404fa
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
FREQUENCY (kHz)
0 140 160 180 200 220 240 260 280 300
AMPLITUDE (dB)
1404 G12
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
20 40 60 80 100 120
f
SAMPLE
= 600kHz
fa
= 298.6816406kHz
fb = 304.8339844kHz
fb
2fa + fb
2fb – fa
3fb
fa + fb
2fa
2fb
fa
3fa
Unipolar Mode Intermodulation Distortion Plot at 300kHz
INPUT FREQUENCY (kHz)
10
AMPLITUDE (dB BELOW THE FUNDAMENTAL)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
100 1000
1404 G10
f
SAMPLE
= 600kHz
THD
3RD HARMONIC
2ND HARMONIC
Unipolar Mode
Distortion vs Input Frequency
Unipolar Mode Intermodulation
Distortion Plot at 100kHz
FREQUENCY (kHz)
0 60 120 150 210 27030 90 180 240 300
AMPLITUDE (dB)
1404 G11
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
f
SAMPLE
= 600kHz
fa = 99.16992188kHz
fb = 102.6855469kHz
fa
fb
2fb
2fa – fb
2fa
Bipolar Mode Intermodulation Distortion Plot at 300kHz
FREQUENCY (kHz)
0 140 160 180 200 220 240 260 280 300
AMPLITUDE (dB)
1404 G12
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
20 40 60 80 100 120
f
SAMPLE
= 600kHz
fa
= 298.6816406kHz
fb = 304.8339844kHz
fb
2fa + fb
2fb – fa
2fb + fa
3fb
fa + fb
2fb
3fa
2fa
fb – fa
fa