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Maxim RRFP1A/T Manual de usuario Pagina 25

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Single-/Dual-Band 802.11a/b/g
World-Band Transceiver ICs
Block Diagrams/Typical Operating Circuits (continued)
Tx ANALOG INPUT
SIGNAL FROM
BASEBAND IC
REFERENCE
OSCILLATOR INPUT
SERIAL INPUT FROM
BASEBAND IC
Rx ANALOG OUTPUT
TO BASEBAND IC
5GHz Tx RF OUTPUT
TO BPF AND PA
PA BIAS CURRENT
TO PA
MODE-CONTROL LOGIC
SIGNAL FROM BASEBAND IC
5GHz Rx RF OUTPUT FROM
SWITCH AND BPF
Rx FRONT-END GAIN-CONTROL BIT
FROM BASEBAND IC
Rx FRONT-END AND Tx BASEBAND
GAIN-CONTROL BIT FROM
BASEBAND IC
Rx/Tx BASEBAND-CONTROL BITS FROM
BASEBAND IC
CONTROL BIT FROM
BASEBAND IC
MODE-CONTROL
LOGIC SIGNAL FROM
BASEBAND IC
RSSI OUTPUT
MODE-CONTROL
LOGIC SIGNAL FROM
BASEBAND IC
LOCK-DETECT OUTPUT
TO BASEBAND IC
0.5pF
0.5pF
1.2pF
1.2pF
620Ω
300Ω
10nF
C1
150pF
C2
560pF
2nH
2.4GHz TX RF OUTPUT
TO BPF AND PA
1.8pF
1.8pF
6.8nH
2
1
3
4
5
6
7
8
B6
V
CC
V
CC
B7
RXRFL
TXRFL+
TXRFL-
GND
RXRFH
GND
TXRFH+
B2
GND
B4
V
CC
V
CC
V
CC
V
CC
B5
B3
9
TXRFH-
TXENA
PABIAS
V
CC
V
CC
V
CC
V
CC
TXBBI+
TXBBI-
TXBBQ+
TXBBQ-
R
BIAS
V
REF
GND
DIN
SCLK
RXENA
RXHP
RSSI
V
CC
V
CC
BYPASS
GND
GND
CPOUT
GND
ROSC
LD
B1
RXBBI+
RXBBI-
RXBBQ+
RXBBQ-
10
11
12
13
15 16 17 18 19 20
14
21 22 23 24 25 26 27 28
29
33
32
31
34
35
36
37
38
39
40
41
42
55 54 53 52 51 50 49 48 47 46 45 44 4356
30
TUNE
CS
MAX2829
SHDN
MUX
RSSI
MUX
PLL
SERIAL
INTERFACE
0°
90°
0°
90°
3.6nH
8.2pF
1pF
2.40GHz Rx RF OUTPUT FROM
SWITCH AND BPF
÷2
1.8nH
MAX2828/MAX2829
Maxim Integrated
25
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