LTC2272(RevA) Просмотр технического описания (PDF) - Linear Technology
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LTC2272 Datasheet PDF : 44 Pages
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LTC2273/LTC2272
TYPICAL PERFORMANCE CHARACTERISTICS VDD = 3.3V, OVDD = 1.5V, TA = 25°C, FS = 80Msps,
unless otherwise noted.
LTC2273: 64k Point 2-Tone FFT,
fIN = 14.01MHz and 15.8MHz,
–15dBFS, PGA = 0
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
0
10
20
30
40
FREQUENCY (MHz)
22732 G10
LTC2273: 128k Point FFT,
fIN = 70MHz, –20dBFS,
PGA = 0, Dither “Off”
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
0
10
20
30
FREQUENCY (MHz)
40
22732 G13
LTC2273: SFDR vs Input Level,
fIN = 140MHz, PGA = 1,
Dither “Off”
140
130
120
110
100
90
80
70
60
50
40
30
–80 –70 –60 –50 –40 –30 –20 –10 0
INPUT LEVEL (dBFS)
22732 G16
LTC2273: 64k Point FFT,
fIN = 70MHz, –1dBFS, PGA = 0
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
0
10
20
30
40
FREQUENCY (MHz)
22732 G11
LTC2273: 128k Point FFT,
fIN = 70MHz, –20dBFS,
PGA = 0, Dither “On”
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
0
10
20
30
FREQUENCY (MHz)
40
22732 G14
LTC2273: SFDR vs Input Level,
fIN = 140MHz, PGA = 1,
Dither “On”
140
130
120
110
100
90
80
70
60
50
40
30
–80 –70 –60 –50 –40 –30 –20 –10 0
INPUT LEVEL (dBFS)
22732 G17
LTC2273: 64k Point FFT,
fIN = 70MHz, –1dBFS, PGA = 1
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
0
10
20
30
40
FREQUENCY (MHz)
22732 G12
LTC2273: 64k Point FFT,
fIN = 140.2MHz, –1dBFS, PGA = 1
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
0
10
20
30
40
FREQUENCY (MHz)
22732 G15
LTC2273: 64k Point FFT,
fIN = 170.2MHz, –1dBFS, PGA = 1
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
0
10
20
30
40
FREQUENCY (MHz)
22732 G18
22732fa
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