RF5345 datasheet(5/20 Pages) RFMD

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RF5345

DS120215

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

Function

Description

1LNA BIAS

Voltage supply for the LNA. Without LNA Bias “on”, the LNA will be switched into Bypass Mode.

2RX OUT

Receive port for 802.11b/g/n band. Internally matched to 50

. DC block provided.

3TX IN

RF input for the 802.11b/g/n PA. Input is matched to 50

 and DC block is provided.

4VREG

Regulated voltage for the PA bias control circuit. An external bypass capacitor may be needed on the VREG line for decou-

pling purposes.

5PDETECT

Power detector voltage for TX operation. PDET voltage varies with output power. May need external decoupling.

6VCC B

Supply voltage for the bias circuit of the PA. Add an external 56pF bypass capacitor for low frequency decoupling.

VCC 1

Supply voltage for the first stage of the PA. Add an external 1nF capacitor for low frequency decoupling.

8N/C

No connect.

VCC 2

Supply voltage for the second stage of the PA. Add an external 0.1uF capacitor for low frequency decoupling.

GND

Ground.

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.

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.

Bluetooth® RF Port.

C TX

Transmit Mode. See truth table for proper settings.

C RX

Receive Mode. See truth table for proper settings.

C SHARED

Shared mode operation between WiFi receive and Bluetooth® receive. Switch acts as a 3dB splitter. See truth

table for proper settings.

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