PA2423L

RangeCharger

Final

13-DST-01 Rev 4.0 Jun-14-2006

1 of 10

QA061406

Applications

Bluetooth

USB dongles

PCMCIA, flash cards

Access points

2.4GHz cordless telephone

Features

+22.5 dBm at 45% Power Added Efficiency

Temperature stability better than 1 dB over

-40 °C to +85 °C

Power-control and power-down modes

3.3 V single supply operation

Small lead-free, plastic package: 6 lead QFN

(1.6 mm x 3.0 mm)

Ordering Information

Part Number

Package

Remark

PA2423L

6 Pin QFN

Samples

PA2423L-R

6 Pin QFN

Tape & Reel

PA2423L-EV

Evaluation Kit

Product Description

A monolithic, high-efficiency, silicon-germanium power

amplifier IC, the PA2423L is designed for 2.4GHz

wireless applications, including Bluetooth

2.4 GHz cordless telephone applications. It delivers

+22.5 dBm output power with 45% power-added

efficiency, making it capable of overcoming insertion

losses of up to 2.5 dB between amplifier output and

antenna input.

The PA2423L contains an analog control input for

improving PAE at reduced output power levels.

The PA2423L provides a digital control input for

controlling power up and power down modes of

operation.

An on-chip ramping circuit provides the turn-on/off

switching of amplifier output with less than 3dB

overshoot, meeting the Bluetooth

The PA2423L operates at 3.3 V DC. At typical output

power level (+22.5 dBm), its current consumption is

125 mA.

The silicon/silicon-germanium structure of the PA2423L,

and its exposed die-pad package, soldered to the

system PCB, provide high thermal conductivity and a

subsequently low junction temperature. This device is

capable of operating at a duty cycle of 100 percent.

Functional Block Diagram

Stage 1

Stage 2

Interstage

Match

Bias Generator

Control

Circuitry

V

CTL

V

CC0

V

RAMP

IN

OUT

V

CC1

GND

GND

Figure 1: PA2423L Block Diagram