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參數(shù)資料
| 型號： | EVB3020A |
| 英文描述： | GSM Multiband RF Transceiver |
| 中文描述： | 手機多頻段射頻收發(fā)器 |
| 文件頁數(shù)： | 28/44頁 |
| 文件大小： | 409K |
| 代理商： | EVB3020A |
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Advance Data Sheet
W3020 GSM Multiband RF Transceiver
December 1999
34
Lucent Technologies Inc.
Programming Example (continued)
Table 46. Perform Receive (W3020)
TR register: full receive mode; set DGC gain to 60 dB gain setting with LNA on (G0 = 1) and with normal dc
offset calibration; band bit B = 1.
Bit
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Bit No. A0
A1
G0
G1
G2
G3
G4
G5
G6
T0
T1
T2
DS
DP FTR T3
T4
T5
T6
MO1
MO2
MO3
B
A2
Setting 0
0
1
0
1
0
1
Note: Hex value = f8407C.
To change gain settings and remain in receive mode without redoing dc offset calibration, repeat the bus
transaction above with dc skip bit high (DS = 1). It should be noted that as dc offset is gain-dependent, dc skip
mode can be used only for receive signal levels where dc offset is insignificant.
Table 47. Settle PLL in GSM1800 Band for Transmit Mode (W3020/W3000)
MAIN register: switch W3020 to transmit settling mode to allow LO2 to settle; band bit B = 1.
(W3000 is programmed at the same time to settle LO1 to 1567 MHz frequency with N = 7835 to transmit at
1747 MHz.)
Bit
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Bit No. A0 A1 A2 A3 A4 A5 A6 A7 M1 M2 M3 M4 M5 M6 M7 M8 M9 M10 M11 MO1 MO2 MO3/EN
B
A1
Setting
0
1
0
1
0
1
0
1
0
1
0
Notes:
Hex value = 607A36.
Italics indicate W3000 bits.
Table 48. Basic GSM1800 Transmit Burst (W3020)
TR register: full transmit mode; band bit B = 1.
Bit
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Bit No.
A0 A1=0 G0
G1
G2
G3
G4
G5
G6
T0
T1
T2
DS
DP
FTR
T3
T4
T5
T6
MO1
MO2
MO3
B
A2
Setting
0
1
Note: Hex value = f00000.
To change to the GSM900 MHz band for the example above, band bit B must be changed to B = 0 and the
appropriate channel programming must be set up for the W3000 synthesizer.
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