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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.

Figure 8. Shared Bypass Mode Control Settings and Signal Flow

PCB Layout

The integrated harmonic filtering and matching of the RF5345 facilitates deployment on the customer’s board by offering 50



interface at all RF ports. For best results, the board layout from the evaluation board should be copied as closely as possible in

particular the ground configuration underneath the FEM and around the RF traces and decoupling capacitors. There is an indi-

cator pin labeled P1 ID that should be left as a no-connect on the PCB. This pin is directly connected to the ground pad of the

IC (refer to the package drawing on page 7). For best performance it is recommended that voltage and RF lines do not cross

under this pin. Gerber files of RFMD evaluation board and PCB landing pads recommendations can be provided upon request.

Case

Mode

C_TX

C_RX

C_Shared_RX

C_BT

LNA_Bias

7SHARED BYPASS

WiFi/BT Receive

LOW*

HIGH

HIGH

LOW*

LOW

*These controls must be set to a logic low or grounded. Do not leave floating.

8

7

6

5

1

2

3

4

12

11

10

9

13

14

15

16

LNA_Bias

RX_OUT

TX_IN

Vreg

C_BT

ANT

GND

VCC_2