BCM2085
®
Brief
SUMMARY OF BENEFITS
•
Advanced 65-nm standard digital CMOS design for lowest
power consumption
65-nm CMOS DigRF EDGE CELLULAR TRANSCEIVER
FEATURES
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Quad-band CMOS EDGE/GPRS RF transceiver
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Supports multislot GPRS and EDGE operation up to Class 34
•
Innovative polar transmit architecture
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GMSK and 8-PSK TX modulators and ramp DAC
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Four integrated receive LNAs
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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
•
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
•
Integrated digitally-controlled crystal oscillator (DCXO)
•
DigRF compatible (v1.12) baseband interface
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Autonomous, real-time radio calibration
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Compact 49-pin FBGA package (4 mm × 4 mm)
•
Mobile handsets and smartphones
APPLICATIONS
BCM2085 Block Diagram
Dig RF Interface
Cellular
Baseband
PA
BCM2085
BOARDCOM [ Broadcom Corporation. ]
