The BCM2085 is a 65-nm CMOS single chip quad-band GSM/GPRS/EDGE RF transceiver for GSM850/EGSM900/DCS1800/PCS1900 voice and data applications. The monolithic die, designed on a 65-nm pure digital CMOS technology, integrates the transceiver core as well as the analog functionality to provide a digital interface compliant with the DigRF v1.12 standard. The BCM2085 offers a low power, highly integrated and low cost EDGE RF solution in a 4 mm x 4 mm package. It is the industrys smallest DigRF-compliant EDGE transceiver.

FEATURES
• Quad-band CMOS EDGE/GPRS RF transceiver
• Supports multislot GPRS and EDGE operation up to Class 34
• Innovative polar transmit architecture
• GMSK and 8-PSK TX modulators and ramp DAC
• Four integrated receive LNAs
• Digital low-IF receive architecture including digital filter
• Σ∆ ADCs for conversion of baseband receive signal
• Fully integrated Σ∆ fractional-N synthesizer including VCOs and loop filters
• Integrated digitally-controlled crystal oscillator (DCXO)
• DigRF compatible (v1.12) baseband interface
• Autonomous, real-time radio calibration
• Compact 49-pin FBGA package (4 mm × 4 mm)

SUMMARY OF BENEFITS
• Advanced 65-nm standard digital CMOS design for lowest power consumption
• Highly integrated design enables lowest cost, smallest area DigRF EDGE solution
• Polar transmitter architecture for EDGE enables use of standard linear power amplifiers to simplify
• No SAW filters in the transmit path
• No baseband intervention required for radio calibration

APPLICATIONS
• Mobile handsets and smartphones