Stratos™ EDGE – AM8901 High Efficiency GSM/EDGE Quad-Band CMOS Power Amplifier

Features:
  • 54% PAE for GSM850 and EGSM900 Frequency Band
  • >28% PAE under EDGE 8PSK signal modulation
  • <2% EVM in 8PSK mode across all 4 frequency bands
  • Enhanced Immunity to Antenna Mismatch
  • Operates down to 2.7V
  • Over-temperature, Over-current and Over-voltage Protection Circuitry
  • >2000V ESD Protection (HBM) on All Pins Including RF Pins
  • GPRS Class 12 Compliant Multi-slot Operation
  • RoHS & Lead-free Compliant Package

The Stratos™ EDGE – AM8901 is a quad-band GSM/EDGE CMOS power amplifier manufactured using a standard bulk CMOS technology. Designed to meet and exceed the performance of competing GaAs solutions, the AM8901 enables 20% longer talk and data transmit times.

The AM8901 is able to operate in both GSM/GPRS and EDGE (open loop polar modulator) modes and supports four frequency bands – 850MHz, 900MHz, 1800MHz and 1900MHz. With integrated 50Ω input and output matching plus DC blocking and harmonic filtering, no additional passive components are required. Amalfi Semiconductor’s patented AdaptiveRF™ architecture enables the AM8901 to achieve much higher efficiencies by switching to a lower power mode which results in longer talk and data transmit times in EDGE mobile handsets. This new architecture also achieves linearity of less than 2% EVM under 8PSK (EDGE) signal modulation and is able to operate down to 2.7V with minimal impact to performance.

A highly robust and reliable product, the AM8901 provides over 2000V ESD protection (HBM) on all pins including the RF pins. It can withstand load mismatches of greater than VSWR 15:1