© 2020 Renesas Electronics Corporation

4

January 31, 2021

F1429MB Datasheet

Pin Assignments

Figure 2. Pin Assignments for 2 × 2 × 0.75 mm 12-pin DFN Package – Top View

RF_OUT

NC

EP

9

8

7

2

3

4

NC

NC

10

1

NC

RF_IN+

RF_IN-

NC

Pin Descriptions

Table 1.

Pin Descriptions

Number

Name

Description

1, 4, 5, 7, 8, 10,

12

NC

No internal connection. It is highly recommended that these pins be connected to a ground via that is

located as close to each pin as possible.

2

RF_IN+

Differential RF input +. Internally tied to ground. Recommendation: Use an external DC block to prevent

shorting of any DC voltage that may be present on the preceding RF stage.

3

RF_IN-

Differential RF input -. Internally tied to ground. Recommendation: Use an external DC block to prevent

shorting of any DC voltage that may be present on the preceding RF stage.

6

STBY

Standby. If this pin is not connected or is logic LOW, the F1429MB will operate under its normal operating

condition. Apply a logic HIGH for STBY.

9

RF_OUT

Single-ended RF output. An external DC block is required.

11

VCC

Connect to the supply voltage via a choke. An external bypass capacitor must be placed as close to the pin

as possible.

– EPAD

Exposed paddle. Internally connected to ground. Solder this exposed paddle to a printed circuit board (PCB)

pad that uses multiple ground vias to provide heat transfer out of the F1429MB into the PCB ground planes.

These multiple ground vias are also required to achieve the specified RF performance.