05/2003

Preliminary

RFSP2020

2.4–2.5 GHz Power Amplifier

3.00

3.00

Index Area

1.00

0.80

0.05

45

35

Top View

Side View

Bottom View

1

1. All dimensions are in millimeters, angles in

degrees.

2. The terminal #1 identifier and pad

numbering convention shall conform to

JESD 95-1 SPP-012

3. Lead coplanarity: 0.05 max.

4. Dimension applies to metalized pad and is

measured between 0.25 and 0.30 MM from

pad tip.

1.80 SQ

1.50

0.275

0.225

0.

0.

0.50 TYP

4

Applications

802.11b/g WLAN

2.4 GHz ISM band wireless equipment

16

Pin 1

Functional Block Diagram

Product Description

The RFSP2020 power amplifier is a high-

performance GaAs HBT IC designed for use in

transmit applications in the 2.4-2.5 GHz frequency

band. With a P1dB of 25 dBm, the device is ideal

as a final stage for wireless LAN applications

requiring high transmit linearity. Designed with

advanced linearizing techniques, the device

achieves a specific error vector magnitude (EVM)

with lesser backoff than conventional PA designs.

The PA exhibits unparalleled linearity and

efficiency for both 802.11b- and 802.11g-based

WLAN systems. The on-chip detector is perfect

for systems where power sensing is necessary.

The part operates off a single +3.3V supply.

1

2

3

14

15

16

12

11

9

7

6

5

GND

RF IN

RF OUT

GND

VPC2/3

Bias

Bias

Output

Match

Input

Match

Detector

4

8

10

13

GND

VPC1

NC

Product Features

25 dBm P1dB@3.3V

30 dB gain

with 54 Mbps OFDM signal

with 54 Mbps OFDM signal

Single +3.3V supply voltage

PA power on/off logic

Input and output matched to 50 ohms

3x3 mm Package Outline

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