The SKY77500 incorporates separate GSM850/900 and DCS1800/PCS1900 PA blocks that share a common power supply input for current distribution. Impedance-matching circuitry for 50 Ω input/output and a PA bias control block are also incorporated. Internal decoder circuitry controls the RF switches and provides a low current external control interface. The SKY77500 is packaged in a 32-pin, 8 x 10 mm Multi-Chip Module (MCM) package. Please note: SKY77500-12 is being discontinued and is not recommended for new design.