RTR6285™/RTR6280™ RF Transceiver IC Device Specification (Advance Information)
Overview
The RTR6285/RTR6280 IC supports multi-band, multi-mode phones.
■ Receiver paths:
❒ GSM/EDGE 850
❒ GSM/EDGE 900
❒ GSM/EDGE 1800
❒ GSM/EDGE 1900
❒ Two single-ended UMTS inputs
❒ Two differential UMTS inputs
❒ Three single-ended UMTS diversity inputs (RTR6285 only)
❒ GPS receive (RTR6285 only)
■ Transmitter paths:
❒ Two low-band Tx paths for:
– GSM/EDGE 850
– GSM/EDGE 900
– UMTS 800/850/900
❒ Three high-band Tx paths for:
– GSM/EDGE 1800
– GSM/EDGE 1900
– UMTS 1700/AWS/1800
– UMTS 1900
– UMTS 2100
Numerous secondary functions also are integrated on-chip:
■ LNAs for UMTS Rx operation
■ Quadrate demodulator to support UMTS Rx operation
■ Three fractional-N synthesizers with on-chip VCOs and loop filters:
❒ PLL1 and on-chip VCO support all transmitters of GSM 850/900/1800/1900 and
UMTS low and high bands. It also serves all receivers of GSM
850/900/1800/1900.
❒ PLL2 and on-chip VCO support primary and diversity receivers of UMTS high
and low bands.
❒ PLL3 and on-chip VCO support GPS receiver (RTR6285 only).
80-VD861-1 Rev. E
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