1.

Product profile

1.1 General description

The BGY288 is a power amplifier module in a SOT775 surface mounted package with a

plastic cap. In the module, a mix of state of the art technologies as InGaP, Si-Bicmos and

Si passive integration are used to combine high performance with a small size. The

module comprises two functional sections, one for low-band (GSM850/EGSM900) and

one for high-band (DCS1800/PCS1900) with internal power detection, power control loop,

input and output matching; see Figure 2. The power control circuit ensures a stable RF

power output which is set by the voltage level on pin PC. The power control circuit is

stabilized to compensate for variations in supply voltage, input power and temperature,

and has a control range fully compliant with European Telecommunication Standards

Institute (ETSI) time mask and power spectrum requirements.

1.2 Features

1.2.1 General features

1.2.2 RF performance

η @ P

η @ P

η @ P

1.3 Applications

(GSM systems) in four frequency bands: 824 MHz to 849 MHz, 880 MHz to 915 MHz,

1710 MHz to 1785 MHz and 1850 MHz to 1910 MHz.

BGY288

Power amplifier with integrated control loop for GSM850,

EGSM900, DCS1800 and PCS1900

Rev. 01 — 2 February 2005

Preliminary data sheet

× 8 mm)

GSM850/EGSM900

DCS1800/PCS1900

(duty cycle

δ =4:8)

control voltage