RF5325 Datasheet, PDF (5/12 Pages) RF Micro Devices – 3.3V, 2.4GHZ 802.11b/g/n WIFI FRONT END MODULE

RF5325
Pin Function Description
1
RX
Receive port for 802.11b/g/n band. Internally matched to 50. DC block provided.
2
GND
Ground.
3
TX
RF input for the 802.11b/g/n PA. Input is matched to 50 and DC block is provided.
4
VREG
Digital enable pin for the 802.11b/g/n PA. This is an active high control. An external bypass capacitor may be
needed on the V_REG line for decoupling purposes.
5
PDETECT ^{Power detector voltage for TX section. PDET voltage varies with output power. May need external decoupling}
capacitor for module stability. May need external circuitry to bring output voltage to desired level.
6
VCC
Supply voltage for the bias circuit of the PA. Add an external 56pF bypass capacitor for low frequency decou-
pling.
7
VCC
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
Supply voltage for the second stage of the PA. Add an external 10nF capacitor for low frequency decoupling.
10
GND
Ground.
11
ANT
Port matched to 50 and is a DC short to ground.
12
GND
Ground.
13
BT
RF bidirectional port for Bluetooth^®. Input is matched to 50 and DC block is provided.
14
C_BT
Switch control port. See switch truth table for proper level.
15
C_TX
Switch control port. See switch truth table for proper level.
16
C_RX
Switch control port. See switch truth table for proper level.
Package Drawing
DS110618
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ([phone] or [e-mail].
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