RF5755 Datasheet, PDF (6/15 Pages) RF Micro Devices – 2.4GHz TO 2.5GHz 802.11b/g/n WiFi FRONT END MODULE

RF5755
.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Function
LNA VDD
RX OUT
VREG
TX
PDETECT
VCC
VCC
N/C
OC
GND
ANT
C_BT
BT
N/C
C RX
C_BWRX
Description
Voltage supply for the LNA.
Receive port for 802.11b/g band. Internally matched to 50. DC block provided.
Regulated voltage for the bias control circuit, and the Tx control port of the SP3T which is also tied to this pin. An
external bypass capacitor may be needed on the V_REG line for decoupling purposes.
RF input for the 802.11b/g PA. Input is matched to 50 and DC block is provided.
Power detector voltage for Tx section. PDET voltage varies with output power. May need external decoupling
capacitor for noise bypassing. May need external circuitry to bring output voltage to desired level.
Supply voltage for the PA.
Supply voltage for the PA.
No connect.
Open Circuit.
Ground.
Port matched to 50 and is DC blocked internally.
Bluetooth^® switch control pin. See truth table for proper level.
RF bidirectional port for Bluetooth^®. Input is matched to 50 and DC block is provided.
No connect.
Receive switch control pin. See switch truth table for proper level.
SPST switch control pin. (Simultaneous WiFi and BT receive.) See truth table for proper level.
Pin Out
16
15
14
13
LNA_Vcc 1
12 _{C_BT}
RX Out 2
11 ANT
Vreg 3
10 GND
Tx In ⁴
9 OC
5
6
7
8
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DS120214