参数资料
型号: HSP50214BVCZ
厂商: Intersil
文件页数: 26/62页
文件大小: 0K
描述: IC DOWNCONVERTER 14BIT 120-MQFP
标准包装: 24
功能: 降频器
RF 型: AMPS,CDMA,GSM,TDMA
封装/外壳: 120-BQFP
包装: 托盘
HSP50214B
.
TABLE 9A. BIT WEIGHTING FOR AGC LOOP FEEDBACK PATH
AGC LOOP
AGC
AGC
GAIN
FILTER
OUTPUT
ACCUM
GAIN
ERROR
AGC LOOP
GAIN
AND AGC
AGC GAIN
BIT
POSITION
ERROR
INPUT
BIT
WEIGHT
FILTER GAIN
(MANTISSA)
MULTIPLIER
(OUTPUT)
SHIFT
=0
SHIFT
=4
SHIFT
=8
SHIFT
= 15
LIMITS BIT
WEIGHT
RESOLUTION
(dB)
31
2
2
2
2
0
30
29
28
2
2
2
2
2
2
2
2
2
2
2
2
E
E
E
3
2
1
48
24
12
27
26
12
11
=2
=1
2
1
2
2
2
2
2
2
2
1
E
M
0
-1
6
3
25
24
23
22
21
20
19
18
17
16
15
10
9
8
7
6
5
4
3
2
1
0
= 0.
=1
=2
=3
=4
=5
=6
=7
=8
=9
= 10
0.
x
x
x
x
0.
1
2
3
4
5
6
7
8
9
10
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
2
2
2
2
2
2
1
0.
1
2
3
0.
1
2
3
4
5
6
7
8
9
10
M
M
M
M
M
M
X
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
1.5
0.75
0.375
0.1875
0.09375
0.04688
0.02344
0.01172
0.00586
0.00293
0.00146
14
13
12
11
10
9
8
7
6
11
12
13
14
2
2
2
1
0.
1
2
3
4
0.
1
2
3
4
5
6
7
8
4
5
6
7
8
9
10
11
12
11
12
13
14
G
G
G
G
G
-13
-14
-15
-16
-17
-18
-19
-20
-21
0.000732
0.000366
0.000183
0.0000916
0.0000458
0.0000229
0.0000114
0.00000572
0.00000286
5
4
3
2
1
0
5
6
7
8
9
10
9
10
11
12
13
14
13
14
G
G
G
G
G
G
G
G
G
G
AGC Response Max = ( 2 ) ( 1.64676 ) ? ------ ? ( 1 ) ( 1.5dB ) ~ 3.275dB/output sample time .
AGC Response Max = Input(Cart/PolarGain)(Error Det Gain)(AGC Loop Gain Max )(AGC Output Weighting).G = ground = 0.
15
? 16 ?
AGC Response Min = ( 2 ) ( 1.64676 ) ( 2
– 15
) ( 1 ) ( 1.5dB ) ~ 0.000106dB/output sample time .
Thus, the expected range for the AGC rate is ~ 0.000106 to 3.275dB/output sample time.
26
FN4450.4
May 1, 2007
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