The MAX2580 is a highly integrated, multistandard transceiver
for 4G (LTE) small-cell basestations. The transceiver
is capable of operating in both TDD and FDD modes
in all LTE bands. It incorporates two fully integrated and
independent transmit and receive paths, enabling full support
of MIMO operation. Each receive path includes multiple
input ports to support monitoring of out of band channels.
The transceiver includes all components of the RF
front-end as well as baseband amplifiers, data converters
and channel selection filters. The MAX2580 requires only
a few external components to work as an all-band, multimode,
MIMO transceiver with programmable RX and TX
channel bandwidths to support all LTE configurations.
IQ mismatch of both RX and TX paths is factory calibrated
to meet the EVM requirement for 64QAM modulation in
select bands. In addition, the TX path does not require an
external SAW filter to meet emission and desensitization
specifications in some applications.
All decimation/interpolation and channel selection filters are
included on chip. For data transmission to the BBIC, the
transceiver includes a JESD207-compliant parallel interface.
The device is controlled via a standard SPI interface.