RF5345 Datasheet, PDF (5/20 Pages) RF Micro Devices – 2.4GHz TO 2.5GHz, 802.11b/g/n WiFi FRONT END MODULE

RF5345
Pin Function Description
1
LNA BIAS ^{Voltage supply for the LNA. Without LNA Bias “on”, the LNA will be switched into Bypass Mode.}
2
RX OUT
Receive port for 802.11b/g/n band. Internally matched to 50. DC block provided.
3
TX IN
RF input for the 802.11b/g/n PA. Input is matched to 50 and DC block is provided.
4
VREG
Regulated voltage for the PA bias control circuit. An external bypass capacitor may be needed on the V_REG line for decou-
pling purposes.
5
PDETECT ^{Power detector voltage for TX operation. PDET voltage varies with output power. May need external decoupling.}
6
VCC B
Supply voltage for the bias circuit of the PA. Add an external 56pF bypass capacitor for low frequency decoupling.
7
VCC 1
Supply voltage for the first stage of the PA. Add an external 1nF capacitor for low frequency decoupling.
8
N/C
No connect.
9
VCC 2
Supply voltage for the second stage of the PA. Add an external 0.1uF capacitor for low frequency decoupling.
10
GND
Ground.
11
ANT
Antenna port. This pin is internally matched for a 50 load and it is a DC short to ground. See functional block diagram
for more details.
12
C BT
Bluetooth^® Mode. BT will always assert this pin when transmitting, or when receiving in BT-only mode. See truth
table for proper settings.
13
BT
Bluetooth^® RF Port.
14
C TX
Transmit Mode. See truth table for proper settings.
15
C RX
Receive Mode. See truth table for proper settings.
16
C SHARED Shared mode operation between WiFi receive and Bluetooth^® receive. Switch acts as a 3dB splitter. See truth
RX
table for proper settings.
DS120215
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ([phone] or [e-mail].
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