LTC2205-14
10
220514fb
LTC2205-14: SFDR vs Input Level,
fIN = 5.1MHz, RAND = 1, DITH = 1
TYPICAL PERFORMANCE CHARACTERISTICS
LTC2205-14: 32K Point FFT, fIN1 =
64.1MHz, –7dBFS, fIN2 = 70.1MHz,
–7dBFS, PGA = 0, DITH = 0
FREQUENCY (MHz)
0
AMPLITUDE
(dBFS)
–80
–20
–10
0
10
20
25
220514 G29
–100
–110
–120
–40
–60
–90
–30
–130
–50
–70
515
30
INPUT LEVEL (dBFS)
–80
20
SFDR
(dBFS
AND
dBc)
30
50
60
70
120
90
–60
–40 –30
220514 G30
40
100
110
80
–70
–50
–20 –10
0
INPUT LEVEL (dBFS)
–80
20
SFDR
(dBFS
AND
dBc)
30
50
60
70
120
90
–60
–40 –30
220514 G31
40
100
110
80
–70
–50
–20 –10
0
INPUT LEVEL (dBFS)
–80
20
SFDR
(dBFS
AND
dBc)
30
50
60
70
120
90
–60
–40 –30
220514 G32
40
100
110
80
–70
–50
–20 –10
0
LTC2205-14: SFDR vs Input Level,
fIN = 14.9MHz, RAND = 1, DITH = 0
LTC2205-14: SFDR vs Input Level,
fIN = 14.9MHz, RAND = 1, DITH = 1
INPUT LEVEL (dBFS)
–80
20
SFDR
(dBFS
AND
dBc)
30
50
60
70
120
90
–60
–40 –30
220514 G33
40
100
110
80
–70
–50
–20 –10
0
LTC2205-14: SFDR vs Input Level,
fIN = 70.1MHz, RAND = 1, DITH = 0
LTC2205-14: SFDR vs Input Level,
fIN = 70.9MHz, RAND = 1, DITH = 1
LTC2205-14: SFDR vs Input Level,
fIN = 140.1MHz, RAND = 1,
DITH = 0
INPUT LEVEL (dBFS)
–80
20
SFDR
(dBFS
AND
dBc)
30
50
60
70
120
90
–60
–40 –30
220514 G34
40
100
110
80
–70
–50
–20 –10
0
INPUT LEVEL (dBFS)
–80
20
SFDR
(dBFS
AND
dBc)
30
50
60
70
120
90
–60
–40 –30
220514 G35
40
100
110
80
–70
–50
–20 –10
0
INPUT LEVEL (dBFS)
–80
20
SFDR
(dBFS
AND
dBc)
30
50
60
70
120
90
–60
–40 –30
220514 G36
40
100
110
80
–70
–50
–20 –10
0
LTC2205-14: SFDR vs Input Level,
fIN = 5.1MHz, RAND = 1, DITH = 0
LTC2205-14: SFDR vs Input Level,
fIN = 140.1MHz, RAND = 1,
DITH = 1
INPUT LEVEL (dBFS)
–80
20
SFDR
(dBFS
AND
dBc)
30
50
60
70
120
90
–60
–40 –30
220514 G37
40
100
110
80
–70
–50
–20 –10
0