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參數(shù)資料
型號(hào): DC1370A-E
廠商: Linear Technology
文件頁數(shù): 4/34頁
文件大?。?/td> 0K
描述: BOARD DEMO 40MSPS LTC2257-14
軟件下載: QuikEval II System
設(shè)計(jì)資源: DC1370A Design Files
標(biāo)準(zhǔn)包裝: 1
系列: *
相關(guān)產(chǎn)品: DC718C-ND - DEMO QUIKEVAL-II DATA
LTC2258-14
LTC2257-14/LTC2256-14
12
225814fc
For more information www.linear.com/LTC2258-14
Typical perForMance characTerisTics
LTC2257-14: 8k Point FFT,
fIN = 69MHz, –1dBFS, 40Msps
LTC2257-14: 8k Point FFT,
fIN = 139MHz, –1dBFS, 40Msps
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE
(dBFS) –50
–30
–40
–20
–10
0
10
20
225814 G25
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE
(dBFS) –50
–30
–40
–20
–10
0
10
20
225814 G26
LTC2257-14: 8k Point 2-Tone FFT,
fIN = 68MHz, 69MHz, –1dBFS,
40Msps
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE
(dBFS) –50
–30
–40
–20
–10
0
10
20
225814 G27
LTC2257-14: IVDD vs Sample Rate,
5MHz Sine Wave Input, –1dB
LTC2257-14: IOVDD vs Sample
Rate, 5MHz Sine Wave Input,
–1dB, 5pF on Each Data Output
LTC2257-14: Shorted Input
Histogram
LTC2257-14: SFDR vs Input Level,
fIN = 70MHz, 2V Range, 40Msps
OUTPUT CODE
8198
1000
0
3000
2000
COUNT
4000
5000
6000
8200
8202
8204
8206
225814 G28
SAMPLE RATE (Msps)
0
30
20
25
15
35
I VDD
(mA)
20
40
225814 G33
LVDS OUTPUTS
CMOS OUTPUTS
SAMPLE RATE (Msps)
25
10
15
20
5
0
45
30
35
40
I OVDD
(mA)
225814 G34
1.75mA LVDS
1.8V CMOS
1.2V CMOS
3.5mA LVDS
0
20
40
INPUT LEVEL (dBFS)
–80
60
50
40
30
20
10
0
80
70
SFDR
(dBc
AND
dBFS)
90
100
110
–70 –60 –50 –40 –30 –20 –10
0
225814 G32
dBFS
dBc
INPUT FREQUENCY (MHz)
0
72
71
70
69
68
67
66
74
73
SNR
(dBFS)
50
100 150 200
250 300 350
225814 G29
INPUT FREQUENCY (MHz)
0
90
85
80
75
70
65
95
SFDR
(dBFS)
50
100 150 200
250 300 350
225814 G30
LTC2257-14: SNR vs Input
Frequency, –1dB, 2V Range,
40Msps
LTC2257-14: SFDR vs Input
Frequency, –1dB, 2V Range,
40Msps
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