參數(shù)資料
型號: HSP50216
廠商: Intersil Corporation
英文描述: Four-Channel Programmable Digital DownConverter(四通道可編程數(shù)字下變頻器)
中文描述: 四通道可編程數(shù)字下變頻器(四通道可編程數(shù)字下變頻器)
文件頁數(shù): 7/52頁
文件大?。?/td> 431K
代理商: HSP50216
3-7
Floating Point Input Mode Bit Mapping Tables
A, B, C or D(15:0) Input: 2^ - 0 1 2 3 4 5 6 7 8 9 10 11 12 13(exp2) 14(exp1) 15(exp0)
11-BIT MODE: 11-BIT MANTISSA (MINIMUM), 3-BIT EXPONENT, 30dB EXPONENT RANGE
EXPONENT
GAIN (dB)
PIN BIT WEIGHTING TO 16-BIT INPUT MAPPING, 2^-
000
0
0
0
0
0
0
0
1
2
3
4
5
6
7
8
9
10
001
6
0
0
0
0
0
1
2
3
4
5
6
7
8
9
10 11
010
12
0
0
0
0
1
2
3
4
5
6
7
8
9
10 11 12
011
18
0
0
0
1
2
3
4
5
6
7
8
9
10 11 12
z
100
24
0
0
1
2
3
4
5
6
7
8
9
10 11 12
z
z
101 (Note 1)
30
0
1
2
3
4
5
6
7
8
9
10 11 12
z
z
z
NOTE:
1. Or 110 or 111, the exponent input saturates at 101.
12-BIT MODE: 12-BIT MANTISSA, 3-BIT EXPONENT, 24dB EXPONENT RANGE
EXPONENT
GAIN (dB)
PIN BIT WEIGHTING TO 16-BIT INPUT MAPPING, 2^-
000
0
0
0
0
0
0
1
2
3
4
5
6
7
8
9
10 11
001
6
0
0
0
0
1
2
3
4
5
6
7
8
9
10 11 12
010
12
0
0
0
1
2
3
4
5
6
7
8
9
10 11 12
z
011
18
0
0
1
2
3
4
5
6
7
8
9
10 11 12
z
z
100 (Note 2)
24
0
1
2
3
4
5
6
7
8
9
10 11 12
z
z
z
NOTE:
2. Or 101, 110, or 111, the exponent input saturates at 100.
13-BIT MODE: 13-BIT MANTISSA, 3-BIT EXPONENT, 18dB EXPONENT RANGE
EXPONENT
GAIN (dB)
PIN BIT WEIGHTING TO 16-BIT INPUT MAPPING, 2^-
000
0
0
0
0
0
1
2
3
4
5
6
7
8
9
10 11 12
001
6
0
0
0
1
2
3
4
5
6
7
8
9
10 11 12
z
010
12
0
0
1
2
3
4
5
6
7
8
9
10 11 12
z
z
011 (Note 3)
18
0
1
2
3
4
5
6
7
8
9
10 11 12
z
z
z
NOTE:
3. Or 100, 101, 110, or 111, the exponent input saturates at 011.
14-BIT MODE: 14-BIT MANTISSA, 2-BIT EXPONENT, 12dB EXPONENT RANGE
EXPONENT
GAIN (dB)
PIN BIT WEIGHTING TO 16-BIT INPUT MAPPING, 2^-
00
0
0
0
0
1
2
3
4
5
6
7
8
9
10 11 12 13
01
6
0
0
1
2
3
4
5
6
7
8
9
10 11 12 13
z
10 (Note 4)
12
0
1
2
3
4
5
6
7
8
9
10 11 12 13
z
z
NOTE:
4. Or 11, the exponent input saturates at 10.
HSP50216
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