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LMS12 датащи(PDF) 3 Page - LOGIC Devices Incorporated

номер детали LMS12
подробное описание детали  12-bit Cascadable Multiplier-Summer
PDF  9 Pages
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производитель  LODEV [LOGIC Devices Incorporated]
домашняя страница  http://www.logicdevices.com
Logo LODEV - LOGIC Devices Incorporated

LMS12 датащи(HTML) 3 Page - LOGIC Devices Incorporated

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DEVICES INCORPORATED
LMS12
12-bit Cascadable Multiplier-Summer
Multiplier-Summers
08/16/2000–LDS.S12-J
3
CLK Cycle
1
2
3
4
56789
X(n)
Xn
Xn+1
Xn+2
Xn+3
Xn+4
Xn+5
Xn+6
Xn+7
Xn+8
A4 Register
Xn
Xn+1
Xn+2
Xn+3
Xn+4
Xn+5
Xn+6
Xn+7
Sum 4
h4Xn
h4Xn+1
h4Xn+2
h4Xn+3
h4Xn+4
h4Xn+5
h4Xn+6
A3 Register
Xn
Xn+1
Xn+2
Xn+3
Xn+4
Xn+5
Xn+6
Xn+7
Sum 3
h3Xn
h3Xn+1
h3Xn+2
h3Xn+3
h3Xn+4
h3Xn+5
h3Xn+6
+h4Xn–1
+h4Xn
+h4Xn+1
+h4Xn+2
+h4Xn+3
+h4Xn+4
+h4Xn+5
A2 Register
Xn
Xn+1
Xn+2
Xn+3
Xn+4
Xn+5
Xn+6
Xn+7
Sum 2
h2Xn
h2Xn+1
h2Xn+2
h2Xn+3
h2Xn+4
h2Xn+5
h2Xn+6
+h3Xn–1
+h3Xn
+h3Xn+1
+h3Xn+2
+h3Xn+3
+h3Xn+4
+h3Xn+5
+h4Xn–2
+h4Xn–1
+h4Xn
+h4Xn+1
+h4Xn+2
+h4Xn+3
+h4Xn+4
A1 Register
Xn
Xn+1
Xn+2
Xn+3
Xn+4
Xn+5
Xn+6
Xn+7
Sum 1
h1Xn
h1Xn+1
h1Xn+2
h1Xn+3
h1Xn+4
h1Xn+5
h1Xn+6
+h2Xn–1
+h2Xn
+h2Xn+1
+h2Xn+2
+h2Xn+3
+h2Xn+4
+h2Xn+5
+h3Xn–2
+h3Xn–1
+h3Xn
+h3Xn+1
+h3Xn+2
+h3Xn+3
+h3Xn+4
+h4Xn–3
+h4Xn–2
+h4Xn–1
+h4Xn
+h4Xn+1
+h4Xn+2
+h4Xn+3
A0 Register
Xn
Xn+1
Xn+2
Xn+3
Xn+4
Xn+5
Xn+6
Xn+7
Sum 0
h0Xn
h0Xn+1
h0Xn+2
h0Xn+3
h0Xn+4
h0Xn+5
h0Xn+6
+h1Xn–1
+h1Xn
+h1Xn+1
+h1Xn+2
+h1Xn+3
+h1Xn+4
+h1Xn+5
+h2Xn–2
+h2Xn–1
+h2Xn
+h2Xn+1
+h2Xn+2
+h2Xn+3
+h2Xn+4
+h3Xn–3
+h3Xn–2
+h3Xn–1
+h3Xn
+h3Xn+1
+h3Xn+2
+h3Xn+3
+h4Xn–4
+h4Xn–3
+h4Xn–2
+h4Xn–1
+h4Xn
+h4Xn+1
+h4Xn+2
TABLE 1.
TIMING EXAMPLE FOR 5-TAP NONDECIMATING FIR FILTER
FIGURE 2B.OUTPUT FORMATS
23 22 21
14 13 12
2
1
2
0
2
–1
2
–8 2–9 2–10
11 10 9
2
1
0
2
–11 2–12 2–13
2
–20 2–21 2–22
Fractional Two’s Complement
23 22 21
14 13 12
2
23 222 221
2
14 213 212
11 10 9
2
1
0
2
11 210 29
2
2
2
1
2
0
Integer Two’s Complement
25 24
25 24
–2
3
(Sign)
2
2
–2
25
(Sign)
2
24
FIGURE 2A.INPUT FORMATS
11 10 9
2
1
0
–2
0
(Sign)
2
–1 2–2
2
–9 2–10 2–11
11 10 9
2
1
0
–2
0
(Sign)
2
–1 2–2
2
–9 2–10 2–11
Fractional Two’s Complement
11 10 9
2
1
0
–2
11
(Sign)
2
10
2
9
2
2
2
1
2
0
11 10 9
2
1
0
–2
11
(Sign)
2
10
2
9
2
2
2
1
2
0
Integer Two’s Complement
AIN
BIN



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