|
Part Number |
XRDAN28 |
|
Manufacturer |
Exar Corporation |
|
Semiconductor DataSheet |
|
DataSheet View |
|
www.DataSheet4U.com
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8 DOUT (s)/DIN (s)=(1•exp(•N*s/F S ))/(N(1•exp(•s/F S ))) %!# &9
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XRDAN28
Introduction
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XRDAN28
" 7,(* 0 12& 0 12
: :
3 12&
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Equivalent Systems e
7,(
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• S 30MHz
: :
;+(&*
;+(&*<
3 12-
D OUT (S) = A IN (S)
1 • (1 + e 2
• S 30 MHz
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Figure 1. Two Samples Averaged
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7,(*
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= 53 12&
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0 12-
Equivalent Systems e
7,(
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• 3• S 30MHz • 2• S 30MHz • S 30MHz
e e
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=
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53 12-
D OUT (S) = A IN (S)
1 • (1 + e 4
• S 30 MHz
+ e
• 2• S 30 MHz
+ e 30 MHz )
• 3• S
Figure 2. Four Samples Averaged
XRDAN28
A/D SAMPLE RATE•30 MHz
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@53 12@3 12-
A (;+ 7,*
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=
12DOUT2
12DOUT4
12-
012-
=12-
312-
>12-
Graph 1. Decimation Filter Frequency Response
0
XRDAN28 Notes
=
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