F0440 Datasheet

© 2021 Renesas Electronics Corporation

3

November 4, 2021

Pin Descriptions

Table 2. Pin Descriptions

Number

Name

Description

1

RFin_A

RF Path A input internally matched to 50Ω. Must use external DC block.

2, 8, 15, 16,

17, 29, 30,

31

GND

Ground these pins.

3

VCTRL0_A 1bit DSA0 6dB attenuator control for path A

4

Data input: 3.3V or 1.8V CMOS compatible.

5

Clock input: 3.3V or 1.8V CMOS compatible.

6, 21, 23, 25

VCC

+5V Power Supply. Use bypass capacitors as close to pin as possible.

7

VCTRL0_B 1bit DSA0 6dB attenuator control for path B

9

RFin_B

RF Path B input internally matched to 50Ω. Must use external DC block.

10, 18, 20,

26, 28, 36

NC

No internal connection. Can be either left open or connected to GND (recommended)

11

12

STBY_B

Standby (Low/Open = device power ON, High = device power OFF with SPI still powered ON). A pull-

down resistor connects between input and GND.

13

VCTRL1_B See separate attenuation logic table for Path B DSA2.

14

VCTRL2_B See separate attenuation logic table for Path B DSA2.

19

RFout_B

RF output Path B. Use external DC block as close to the pin as possible.

22

RDset

Connect external resistor to GND to optimize amplifier bias. Used with pin 24.

24

Rset

Connect external resistor to GND to optimize amplifier bias. Used with pin 22.

27

RFout_A

RF output Path A. Use external DC block as close to the pin as possible.

32

VCTRL2_A See separate attenuation logic table for Path A DSA2.

33

VCTRL1_A See separate attenuation logic table for Path A DSA2.

34

STBY_A

Standby (Low/Open = device power ON, High = device power OFF with SPI still powered ON). A pull-

down resistor connects between input and GND.

35

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 ground

vias are also required to achieve the noted RF performance.

a. See Serial Control Mode section for description.