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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 5. WiFi Bypass Control Settings and Signal Flow Diagram

To prevent additional losses during Bypass mode, ensure that the off branches of the SP3T switch have the controls C_TX and

C_BT set “low” or grounded. For optimum performance, it is also recommended to terminate the RF ports BT and TX_In with

50

.

BLUETOOTH TX/RX Mode

For Bluetooth transmit and receive operation, the only active component is the SP3T switch. Typical insertion loss within the

operating frequency is only 1.5dB. Figure 6 illustrates the signal flow and control settings.

Case

Mode

C_TX

C_RX

C_Shared_RX

C_BT

LNA_Bias

3

WiFi Bypass

LOW*

HIGH

LOW

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