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.

Features
General features
■ Quad band GSM amplifier
■ Very small size (8 mm × 8 mm)
■ 34 dBm controlled output power for GSM850/EGSM900
■ 32.5 dBm controlled output power for DCS1800/PCS1900
■ Suited for GPRS class 12 (duty cycle δ = 4 : 8)
■ Easy on/off and band select by digital control voltage
■ Integrated power control loop
■ Internal input and output matching
■ 3.6 V nominal supply voltage
■ Specification based on 3GPP TS 45.005

Applications
■ Digital cellular radio systems with Time Division Multiple Access (TDMA) operation (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.