RF5388 Datasheet, PDF (6/14 Pages) RF Micro Devices – 3.3V, DUAL-BAND FRONT-END MODULE

RF5388
Preliminary
Pin Function Description
Interface Schematic
1
LNA VCC ^{5GHz LNA input voltage supply.}
2
GND
Ground connection.
3
GND
Ground connection.
4
PA EN_g ^{Bias voltage for the 802.11b/g PA. Internally decoupled port with approximately}
100 pF.
5
GND
Ground connection.
6
TX_g
RF input for the 802.11b/g PA. Input is matched to 50Ω and DC block is pro-
vided internally.
7
GND
Ground connection.
8
TX_a
TX RF input for the 802.11a PA. Input is matched to 50Ω and DC block is pro-
vided internally.
9
GND
Ground Connection.
10
PA EN_a ^{Bias voltage for the 802.11a PA. Internally decoupled port with approximately}
100 pF.
11
GND
Ground connection.
12
GND
Ground connection.
13
GND
Ground connection.
14
VCC_g
Supply voltage for the 11b/g amplifier. Requires external decoupling capacitors
for best performance.
15
VCC_a
Supply voltage for the 11a amplifier. Requires external decoupling capacitors
for best performance.
16
VCC_g
Supply voltage for the 11b/g amplifier. Requires external decoupling capacitors
for best performance.
17
VCC_a
Supply voltage for the 11a amplifier. Requires external decoupling capacitors
for best performance.
18
VCC_a
Supply voltage for the 11a amplifier. Requires external decoupling capacitors
for best performance.
19
PDET_a ^{Power detector voltage for the 802.11a PA. Pdetect voltage varies with output}
power. May need external decoupling capacitor for module stability. May need
resistive voltage divider to bring output voltage to desired level.
20
PDET_g ^{Power detector voltage for the 802.11b/g PA. Pdetect voltage varies with output}
power. May need external decoupling capacitor for module stability. May need
resistive voltage divider to bring output voltage to desired level.
21
GND
Ground connection.
22
GND
Ground connection.
23
NC
No Connect.
24
GND
Ground connection.
25
VCC_g
Supply voltage for the 11b/g amplifier. Requires external decoupling capacitors
for best performance.
26
VCC_g
Supply voltage for the 11b/g amplifier. Requires external decoupling capacitors
for best performance.
27
SW1
Switch control port. (See Switch Truth table.)
28
ANT
Antenna port. This port is matched to 50Ω and DC block is not provided inter-
nally.
29
GND
Ground connection.
30
NC
No Connect.
31
SW2
Switch control port. (See Switch Truth table.)
32
GND
Ground connection.
33
GND
Ground connection.
34
GND
Ground connection.
6 of 14
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Rev A1 DS071026