LTC2202I Просмотр технического описания (PDF) - Linear Technology
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LTC2202I Datasheet PDF : 32 Pages
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LTC2203/LTC2202
TYPICAL PERFORMANCE CHARACTERISTICS
LTC2203: 32K Point FFT,
fIN = 70.1MHz, –1dBFS, PGA = 1
0
–10
–20
–30
– 40
– 50
– 60
–70
– 80
– 90
–100
–110
–120
–130
–140
0 2 4 6 8 10 12
FREQUENCY(MHz)
22032 G25
LTC2203: 32K Point 2-Tone FFT,
fIN = 44.9MHz and 70.1MHz,
–7dBFS, PGA = 0
0
–10
–20
–30
– 40
–50
–60
–70
–80
–90
–100
–110
–120
–130
–140
0 2 4 6 8 10 12
FREQUENCY(MHz)
22032 G28
LTC2203: SFDR vs Input Level,
fIN = 70.1MHz, PGA = 0,
Dither “On”
140
120
100
80
60
40
20
0
–70 –60 –50 –40 –30 –20 –10 0
INPUT LEVEL (dBFS)
22032 G31
10
LTC2203: 32K Point FFT,
fIN = 70.1MHz, –10dBFS, PGA = 1
0
–10
–20
–30
– 40
– 50
– 60
–70
– 80
–90
–100
–110
–120
–130
–140
0 2 4 6 8 10 12
FREQUENCY(MHz)
22032 G26
LTC2203: 32K Point 2-Tone FFT,
fIN = 44.9MHz and 70.1MHz,
–15dBFS, PGA = 0
0
–10
–20
–30
– 40
–50
–60
–70
–80
–90
–100
–110
–120
–130
–140
0 2 4 6 8 10 12
FREQUENCY(MHz)
22032 G29
LTC2203: 32K Point FFT,
fIN = 70.1MHz, –20dBFS, PGA = 1
0
–10
–20
–30
– 40
– 50
–60
–70
– 80
– 90
–100
–110
–120
–130
–140
0 2 4 6 8 10 12
FREQUENCY(MHz)
22032 G27
LTC2203: SFDR vs Input Level,
fIN = 70.1MHz, PGA = 0,
Dither “Off”
140
120
100
80
60
40
20
0
–70 –60 –50 –40 –30 –20 –10 0
INPUT LEVEL (dBFS)
22032 G30
LTC2203: SFDR (HD2 or HD3)
vs Input Frequency
110
105
100
95
PGA = 1
90
PGA = 0
85
80
75
70
0
20
40
60
80 100
INPUT FREQUENCY (MHz)
22032 G32
LTC2203: SNR vs Input Frequency
82
81
PGA = 0
80
79
78
PGA = 1
77
76
75
74
73
0
20 40 60 80 100 120 140
INPUT FREQUENCY (MHz)
22032 G33
22032fd
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