HD155121F Datasheet, PDF (20/57 Pages) Hitachi Semiconductor – RF Transceiver IC for GSM and PCN Dual band cellular systems

HD155121F
Table 4 PGA and IQ Demodulator Block Gain Control
Gain (dB)
Bit Allocation
bitNo
(Typ)
X5
X4
X3
X2
X1
X0
49
57.5
1
1
0
0
0
1
48
55.5
1
1
0
0
0
0
47
53.5
1
0
1
1
1
1
46
51.5
1
0
1
1
1
0
45
49.5
1
0
1
1
0
1
44
47.5
1
0
1
1
0
0
43
45.5
1
0
1
0
1
1
42
43.5
1
0
1
0
1
0
41
41.5
1
0
1
0
0
1
40
39.5
1
0
1
0
0
0
39
37.5
1
0
0
1
1
1
38
35.5
1
0
0
1
1
0
37
33.5
1
0
0
1
0
1
36
31.5
1
0
0
1
0
0
35
29.5
1
0
0
0
1
1
34
27.5
1
0
0
0
1
0
33
25.5
1
0
0
0
0
1
32
23.5
1
0
0
0
0
0
31
21.5
0
1
1
1
1
1
30
19.5
0
1
1
1
1
0
29
17.5
0
1
1
1
0
1
28
15.5
0
1
1
1
0
0
27
13.5
0
1
1
0
1
1
26
11.5
0
1
1
0
1
0
25
9.5
0
1
1
0
0
1
24
7.5
0
1
1
0
0
0
23
5.5
0
1
0
1
1
1
22
3.5
0
1
0
1
1
0
21
1.5
0
1
0
1
0
1
20
−0.5
0
1
0
1
0
0
19
−2.5
0
1
0
0
1
1
18
−4.5
0
1
0
0
1
0
17
−6.5
0
1
0
0
0
1
16
−8.5
0
1
0
0
0
0
15
−10.5
0
0
1
1
1
1
14
−12.5
0
0
1
1
1
0
13
−14.5
0
0
1
1
0
1
12
−16.5
0
0
1
1
0
0
11
−18.5
0
0
1
0
1
1
10
−20.5
0
0
1
0
1
0
9
−22.5
0
0
1
0
0
1
8
−24.5
0
0
1
0
0
0
7
−26.5
0
0
0
1
1
1
6
−28.5
0
0
0
1
1
0
5
−30.5
0
0
0
1
0
1
4
−32.5
0
0
0
1
0
0
3
−34.5
0
0
0
0
1
1
2
−36.5
0
0
0
0
1
0
1
−38.5
0
0
0
0
0
1
0
−40.5
0
0
0
0
0
0
20