hsp50214a Intersil Corporation, hsp50214a Datasheet - Page 25
hsp50214a
Manufacturer Part Number
hsp50214a
Description
Programmable Downconverter
Manufacturer
Intersil Corporation
Datasheet
1.HSP50214A.pdf
(60 pages)
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AGC Response
AGC Response
AGC Response
Thus, the expected range for the AGC rate is ~ 0.00004 to 1.23dB/symbol time.
POSITION
ACCUM
AGC
BIT
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
ERROR
INPUT
GAIN
Max
Max
Min
12
11
10
9
8
7
6
5
4
3
2
1
0
= (1)(1.64676)(2
= Input(Cart/PolarGain)(Error Det Gain)(AGC Loop Gain
= (1)(1.64676)(2
WEIGHT
ERROR
GAIN
= 0
= 10
BIT
= 2
= 1
= 1
= 2
= 3
= 4
= 5
= 6
= 7
= 8
= 9
TABLE 9A. BIT WEIGHTING FOR AGC LOOP FEEDBACK PATH
-15
-0
FILTER GAIN
(MANTISSA)
AGC LOOP
)(1)(0.75dB) ~ 1.23dB/symbol time.
)(1)(0.75dB) ~ 0.00004dB/symbol time.
0
x
x
x
x
MULTIPLIER
AGC LOOP
(OUTPUT)
FILTER
GAIN
0
10
11
12
13
14
2
1
1
2
3
4
5
6
7
8
9
HSP50214A
25
SHIFT
= 0
0
10
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
1
2
3
4
5
6
7
8
9
Max
SHIFT
)(AGC Output Weighting).
0
= 4
10
11
12
13
14
2
2
2
2
2
2
2
2
2
2
2
2
2
1
1
2
3
4
5
6
7
8
9
SHIFT
= 8
0
10
11
12
13
14
G
G
G
G
2
2
2
2
2
2
2
2
2
1
1
2
3
4
5
6
7
8
9
SHIFT
= 15
0
10
11
12
13
14
G
G
G
G
G
G
G
G
G
G
G
2
2
2
2
2
1
1
2
3
4
5
6
7
8
9
E
E
E
E
M
M
M
M
M
M
M
X
0
LIMITS BIT
AND AGC
OUTPUT
WEIGHT
AGC
-10
-11
-12
-13
-14
-15
-16
-17
-18
-19
-20
-21
-1
-2
-3
-4
-5
-6
-7
-8
-9
3
2
1
0
G = Ground = 0.
RESOLUTION
0.00000572
0.00000286
0.0000916
0.0000458
0.0000229
0.0000114
AGC GAIN
0.000732
0.000366
0.000183
0.09375
0.04688
0.02344
0.01172
0.00586
0.00293
0.00146
0.1875
0.375
0.75
(dB)
1.5
48
24
12
6
3
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