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RFLA1018

DS141218

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.

Evaluation Board Assembly Drawing

Truth Table

Pin Names and Descriptions

Pin

Name

Description

1RFIN

RF Input; Internally 50

 Matched and DC Blocked

2GND

Connect to Low Inductance Path to Ground

3SC_N

Switch Control Line; See Truth Table

4GND

Connect to Low Inductance Path to Ground

5VCC2

VCC Supply, 10nF Decoupling Internal; Supply Voltage to 2nd Stage LNA; Disable VCC Supply in Bypass

Mode to Save DC Current.

6SC_P

Switch Control Line; See Truth Table

7ID1/GND

Pin Grounded in Module

8ID2/GND

Pin Grounded in Module

9

VVA_CV

Voltage Variable Attenuator Control Line; 0-3.3V Range; Max Gain is at 0V.

10

GND

Connect to Low Inductance Path to Ground

11

GND

Connect to Low Inductance Path to Ground

12

RFOUT

RF Output Internally 50

 Match and DC Blocked

13

GND

Connect to Low Inductance Path to Ground

14

VCC3

VCC Supply, 0.1uF Decoupling Internal. Supply Voltage to 3rd Stage Amplifier.

15

VCC1

VCC Supply, 0.1uF Decoupling Internal. Supply Voltage to 1st Stage LNA.

16

GND

Connect to Low Inductance Path to Ground

SC_N

SC_P

High Gain

0

1

Low Gain

1

0

LA1018-410(E)

P1

C9

C8

C7

C6

C5

C4

C3

C2

C1

J1

RF_IN

J2

RF_OUT

U1

R1

R2