Power Amplifier

Copyright © 2005 by Silicon Laboratories

11.10.05

Limiter

RFIL

GND

RFIH

APC

RFOL

RFOH

V

BAT

Limiter

TLIMIT

PA

Si4300

Low Pass

Filter

PA

V

DD

SHUTD

BSEL

PAEN

Monitor, Control,

and

I/O Interface

Temperature

and Voltage

Sensors

Matching

Network

Matching

Network

Harmonic

Filter

Harmonic

Filter

Power

Control

Si4300

Dual-Band Monolithic Power Amplifier System

Description

The Si4300 is a complete, monolithic, high-power, and

high-performance power amplifier system that integrates

all functions and all components between the transmit

portion of the transceiver and antenna switch module

(ASM). The integrated circuit consists of two amplification

paths which supports GSM 900 and DCS 1800. These

amplifiers are General Packet Radio Service (GPRS) class

12 compatible and can be used in GPRS multi-slot

applications. The Si4300 integrates the input and output

matching networks, complete power control, thermal and

load mismatch protection, and many other features and

functions in a single, standard CMOS die on a ceramic

substrate.

Features

(3.9 x 6.4 x 1.3 mm)

- Complete power control

- Thermal and load mismatch protection

- Harmonic filtering

- Input and output matching circuits

- Optimal average burst current (ABC)

for all power levels

- Low powerdown current during

receive and standby

- GPRS Class 12 compatible

- 3.0 to 4.8 V operation

- JEDEC moisture sensitivity level (MSL) 1

- RoHS compliant

Applications

- E-GSM 900 and DCS 1800 dual-band cellular

handsets

- GPRS data terminals