Datasheet

LTC2207-14/LTC2206-14
9
220714614fc
LTC2207-14: 64K Point FFT,
f
IN
= 70.1MHz, –25dBFS,
PGA = 0, RAND “On”, Dither “Off’
LTC2207-14: 64K Point FFT,
f
IN
= 70.1MHz, –25dBFS,
PGA = 0, RAND “On”, Dither “On’
LTC2207-14: 32K Point FFT,
f
IN
= 174.8MHz, –1dBFS,
PGA = 1, RAND “On”, Dither “Off’
FREQUENCY (MHz)
0
AMPLITUDE (dBFS)
–70
–30
0
40
2207614 G16
–90
–110
–80
–50
–10
–20
–40
–60
–100
–120
10
20
30
50
FREQUENCY (MHz)
0
AMPLITUDE (dBFS)
–70
–30
0
40
2207614 G17
–90
–110
–80
–50
–10
–20
–40
–60
–100
–120
10
20
30
50
FREQUENCY (MHz)
0
AMPLITUDE (dBFS)
–70
–30
0
40
2207614 G18
–90
–110
–80
–50
–10
–20
–40
–60
–100
–120
10
20
30
50
TYPICAL PERFORMANCE CHARACTERISTICS
INPUT FREQUENCY (MHz)
0
60
SFDR (dBc)
65
75
80
85
200
400
500
105
2207614 G22
70
100 300
90
95
100
PGA = 1
PGA = 0
INPUT FREQUENCY (MHz)
0
SNR (dBFS)
73
74
75
300
500
2207614 G23
72
71
70
100 200 400
76
77
78
PGA = 0
PGA = 1
SAMPLE RATE (Msps)
0
SNR AND SFDR (dBFS)
90
100
200
2207614 G24
80
70
50
100
150
25
75
125
175
110
85
95
75
105
SFDR
SNR
FREQUENCY (MHz)
0
AMPLITUDE (dBFS)
–70
–30
0
40
2207614 G19
–90
–110
–80
–50
–10
–20
–40
–60
–100
–120
10
20
30
50
INPUT LEVEL (dBFS)
–80
0
SFDR (dBc AND dBFS)
20
40
60
80
–60 –40
–20
0
2207614 G20
100
120
–70 –50
–30
–10
INPUT LEVEL (dBFS)
–80
0
SFDR (dBc AND dBFS)
20
40
60
80
–60 –40
–20
0
2207614 G21
100
120
–70 –50
–30
–10
LTC2207-14: 32K Point FFT,
f
IN
= 250.11MHz, –1dBFS,
PGA = 1, RAND “On”, Dither “Off’
LTC2207-14: SFDR vs Input Level,
f
IN
= 140.1MHz, PGA = 1, RAND
“On”, Dither “Off”
LTC2207-14: SFDR vs Input Level,
f
IN
= 140.1MHz, PGA = 1, RAND
“On”, Dither “On”
LTC2207-14: SFDR (HD2 and
HD3) vs Input Frequency
LTC2207-14: SNR vs Input
Frequency
LTC2207-14: SNR and SFDR
vs Sample Rate, f
IN
= 5.1MHz,
–1dBFS