F1129MB Datasheet

© 2019 Renesas Electronics Corporation

4

January 31, 2021

Pin Assignments

Figure 2. F1129MB Pin Assignments for 2 × 2 × 0.75 mm 12-DFN Package – Top View

RF_OUT-

NC

RF_OUT+

EP

9

8

7

2

3

4

NC

NC

10

1

NC

RF_IN

NC

Pin Descriptions

Table 1.

Pin Descriptions

Number

Name

Description

1, 3, 4, 5, 7,

10

NC

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

as close to each pin as possible.

2

RF_IN

Single ended RF Input. Must use external DC block.

6

STBY

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

condition. Apply a logic HIGH for STBY.

8

RF_OUT+

Differential RF Output +. Internally tied to ground. Recommended to use an external DC block to prevent

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

9

RF_OUT-

Differential RF Output -. Internally tied to ground. Recommended to use an external DC block to prevent

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

11

VCC_1

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

possible.

12

VCC_2

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 device into the PCB ground planes.

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