LTC2289I 查看數據表（PDF） - Linear Technology
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LTC2289I Datasheet PDF : 24 Pages
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LTC2289
TYPICAL PERFOR A CE CHARACTERISTICS
SNR vs Input Frequency, –1dB,
2V Range, 80Msps
65
64
63
62
61
60
59
58
57
56
55
0
50
100
150
200
INPUT FREQUENCY (MHz)
2289 G10
SNR and SFDR vs Clock Duty
Cycle, 80Msps
90
SFDR: DCS ON
85
80
SFDR: DCS OFF
75
70
65
SNR: DCS ON
60 SNR: DCS OFF
55
30 35 40 45 50 55 60 65 70
CLOCK DUTY CYCLE (%)
2289 G13
SFDR vs Input Frequency, –1dB,
2V Range, 80Msps
100
95
90
85
80
75
70
65
0
50
100
150
INPUT FREQUENCY (MHz)
200
2289 G11
SNR vs Input Level,
fIN = 70MHz, 2V Range, 80Msps
80
70
dBFS
60
50
40
dBc
30
20
10
0
–50 –40 –30 –20 –10
0
INPUT LEVEL (dBFS)
2289 G14
SNR and SFDR vs Sample Rate,
2V Range, fIN = 5MHz, –1dB
100
90
SFDR
80
70
SNR
60
50
0 10 20 30 40 50 60 70 80 90 100 110
SAMPLE RATE (Msps)
2289 G12
SFDR vs Input Level,
fIN = 70MHz, 2V Range, 80Msps
90
dBFS
80
70
60
dBc
50
40
30
20
10
0
–50 –40 –30 –20 –10
0
INPUT LEVEL (dBFS)
2289 G15
IVDD vs Sample Rate,
5MHz Sine Wave Input, –1dB
165
155
145
2V RANGE
135
1V RANGE
125
115
105
95
0 10 20 30 40 50 60 70 80 90 100
SAMPLE RATE (Msps)
2289 G16
IOVDD vs Sample Rate, 5MHz Sine
Wave Input, –1dB, OVDD = 1.8V
14
12
10
8
6
4
2
0
0 10 20 30 40 50 60 70 80 90 100
SAMPLE RATE (Msps)
2289 G17
2289fa
7
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