RF5565 Datasheet, PDF (6/14 Pages) RF Micro Devices – 2.4GHz TO 2.5GHz, 802.11b/g/n WiFi FRONT END MODULE

RF5565
Pin Function Description
1
TX_IN
RF input for the 802.11b/g PA. Input is matched to 50 and DC block is provided.
2
VREG
Regulated voltage for the bias control circuit. An external bypass capacitor may be needed on the V_REG line for
decoupling purposes.
3
RX OUT
Receive port for 802.11b/g band. Internally matched to 50. DC block provided.
4
LNA VDD ^{Voltage supply for the LNA.}
5
LNA_EN ^{Control voltage for the LNA. When this pin is set to a LOW logic state, the bypass mode is enabled.}
6
C RX
Receive switch control pin. See switch truth table for proper level.
7
C_TX
Switch control voltage for the transmit branch. See logic control table for proper settings.
8
BT
RF bidirectional port for Bluetooth^®. Input is matched to 50 and DC block is provided.
9
C_BT
Bluetooth^® switch control pin. See truth table for proper level.
10
ANT
Port matched to 50 and is DC blocked internally.
11
GND
Ground.
12
N/C
No connect.
13
N/C
No connect.
14
VCC
Supply voltage for the PA.
15
VCC
Supply voltage for the PA.
16
PDETECT ^{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.
Pin Out
16
15
14
13
TX_IN 1
12 N/C
Vreg 2
11 GND
RX Out ₃
10 ANT
LNA_Vdd ₄
9 C_BT
5
6
7
8
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