F2912 Datasheet

R35DS0019EU0104 Rev.1.04

Sep 20, 2021

Page 3

1.

Pin Information

1.1

Pin Assignments

Top View

1.2

Pin Descriptions

Pin Number

Pin Name

Description

1, 2, 4, 5, 6, 7, 9,

10, 11, 12, 14, 15

GND

Ground these pins as close to the device as possible.

3

RF1

RF1 Port. Matched to 50

Ω. If this pin is not 0 V DC, then an external coupling capacitor

must be used.

8

RF_COM

RF Common Port. Matched to 50

Ω. If this pin is not 0 V DC, then an external coupling

capacitor must be used.

13

RF2

RF2 Port. Matched to 50

Ω. If this pin is not 0 V DC, then an external coupling capacitor

must be used.

16

CTL2

Control 2 – See Table 1 and Table 2 Switch Control Truth Tables for proper logic setting.

17

CTL1

Control 1 – See Table 1 and Table 2 Switch Control Truth Tables for proper logic setting.

18

LogicCTL

or GND for 3.3 V logic control.

19

ModeCTL

GND for 2-pin control.

20

Power Supply. Bypass to GND with capacitors shown in the Typical Application Circuit as

close as possible to pin.

21

— EP

Exposed Pad. Internally connected to GND. Solder this exposed pad to a PCB pad that uses

multiple ground vias to provide heat transfer out of the device into the PCB ground planes.

These multiple via grounds are also required to achieve the specified RF performance.

GND

16

17

18

19

20

1

4

3

2

5

GND

GND

11

GND

6

7

8

9

10

RF2

15

12

13

GND

14

GND

GND

RF1

GND

50

Ω

50

Ω

50

Ω

Control

Circuit

E.P.