[AK1224]

MS1413-E-01

4

2013/05

5.

Pin Function Description

Table 1

Pin Function

No.

Name

I/O

Pin Function

Remarks

1

RFIN

AI

RF Input

Connecting a inductor between this pin and ground.

2

VSS

G

Ground pin

3

VSS

G

Ground pin

4

LOINN

AI

Lo Input Negative

5

LOINP

AI

Lo Input Positive

6

BIAS1

AIO

Resistance pin for current

adjustment

Connecting a resistor between this pin and ground.

7

BIAS2

AIO

Resistance pin for current

adjustment

Connecting a resistor between this pin and ground.

8

VDD

P

Power Supply

VDD

9

VDD

P

Power Supply

VDD

10

VDD

P

Power Supply

VDD

11

IFOUTN

AO

IF Output Negative

This pin is open drain output.

It needs power feeding via an inductor.

12

IFOUTP

AO

IF Output Positive

This pin is open drain output.

It needs power feeding via an inductor.

13

VSS

G

Ground pin

14

POWER

DOWN_H

DI

Power Down control pin

High：Power OFF

Low：Power ON

15

BIAS

SELECT

DI

Bias Resistance select pin

High：Bias2 pin is enable

Low：Bias1pin is enable

16

VSS

G

Ground pin

Note)

The exposed pad at the center of the backside should be connected to ground.

AI:Analog input pin

AO:Analog output pin

AIO:Analog I/O pin

P: Power supply pin

G:

Ground pin

DI:Digital input pin