The SKY77365-11 PA module (PAM) is designed for 2G
quad-band cellular handsets supporting fixed gain
Gaussian Minimum-Shift Keying (GMSK) and fixed gain
linear Enhanced Data for GSM Evolution (EDGE)
modulation in the GSM850/900, DCS1800 and
PCS1900 bands. Class12 General Packet Radio Service
(GPRS) multi-slot operation is supported.
The compact 3.0 mm x 3.5 mm x 0.8 mm module
consists of GSM850/900 and DCS1800/PCS1900 PA
blocks, 50-ohm input and output matching circuitry,
and a multi-function power amplifier control (MFC)
block. The custom silicon CMOS MFC provides PA bias
and product identification read-back capability and is
fully programmable through the RF Front-End MIPI.
The heterojunction bipolar transistor (HBT) PA blocks
are fabricated onto a single lnGaP die; one supports
the GSM850/900 bands and the other supports the
DCS1800/PCS1900 bands. Both PA blocks share two
common power supply pads. The InGaP die, silicon die,
and the passive components are mounted on a multilayer laminate substrate. The entire assembly is
encapsulated with plastic over mold.