LTC2203/LTC2202
14
22032fd
LTC2202: 32K Point 2-Tone FFT,
fIN = 60.2MHz and 70.1MHz,
–15dBFS, PGA = 0
LTC2202: SFDR vs Input Level,
fIN = 70.1MHz, PGA = 0,
Dither “Off”
LTC2202: SFDR vs Input Level,
fIN = 70.1MHz, PGA = 0,
Dither “On”
LTC2202: SFDR (HD2 or HD3)
vs Input Frequency
LTC2202: SNR vs Input Frequency
FREQUENCY (MHz)
–140
AMPLITUDE
(dBFS)
–120
–100
–80
0
–40
–20
–60
–130
–110
–90
–10
–50
–30
–70
22032 G64
02
4
INPUT LEVEL (dBFS)
–80
0
SFDR
(dBc
AND
dBFS)
40
20
60
80
100
–60
–40
–20
0
22032 G65
120
140
–70
–50
–30
–10
INPUT LEVEL (dBFS)
–80
0
SFDR
(dBc
AND
dBFS)
40
20
60
80
100
–60
–40
–20
0
22032 G66
120
140
–70
–50
–30
–10
INPUT FREQUENCY (MHz)
0
SFDR(dBc)
85
90
95
60
100
22032 G67
80
75
70
20
40
80
100
105
110
PGA = 0
PGA = 1
INPUT FREQUENCY (MHz)
0
73
SNR
(dBFS)
74
76
77
78
80
82
22032 G68
75
40
20
100
120
60
140
79
80
81
PGA = 0
PGA = 1
LTC2202: 32K Point 2-Tone FFT,
fIN = 60.2MHz and 70.1MHz,
–7dBFS, PGA = 0
FREQUENCY (MHz)
–140
AMPLITUDE
(dBFS)
–120
–100
–80
0
–40
–20
–60
–130
–110
–90
–10
–50
–30
–70
22032 G63
02
4
LTC2202: 32K Point FFT,
fIN = 70.1MHz, –10dBFS, PGA = 1
LTC2202: 32K Point FFT,
fIN = 70.1MHz, –20dBFS, PGA = 1
FREQUENCY (MHz)
0
–140
AMPLITUDE
(dBFS)
–120
–100
–80
0
–40
1
3
4
–20
–60
–130
–110
–90
–10
–50
–30
–70
2
5
22032 G61
FREQUENCY (MHz)
0
–140
AMPLITUDE
(dBFS)
–120
–100
–80
0
–40
1
3
4
–20
–60
–130
–110
–90
–10
–50
–30
–70
2
5
22032 G62
TYPICAL PERFORMANCE CHARACTERISTICS