MAX2366, MAX2367, MAX2368 Complete Dual-Band Quadrature Transmitters
The MAX2366 dual-band, triple-mode complete transmitter for cellular phones represents the most integrated and architecturally advanced solution to date for this application. The device takes a differential I/Q baseband input and mixes it up to IF through a quadrature Modulator and IF variable-gain Amplifier (VGA). The signal is then routed to an external bandpass Filter and upconverted to RF through an SSB mixer and RF VGA. The signal is further amplified with an on-board PA driver. Dual IF synthesizers, dual RF synthesizers, a local Oscillator (LO) Buffer and a 3-wire programmable bus complete the basic functional blocks of this IC. The MAX2367 supports single-band, single-mode (PCS) operation. The MAX2368 supports single-band cellular dual-mode operation.
The MAX2366 enables architectural flexibility because its two IF Voltage-Controlled Oscillators (VCOs), two IF ports, two RF LO input ports, and three PA driver output ports allow the use of a single receive IF frequency and split-band PCS Filters for optimum out-of-band noise performance. The PA drivers allow up to three RF SAW Filters to be eliminated. Select a mode of operation by loading data on the SPI/QSPI/MICROWIRE-compatible 3-wire serial bus. Charge-pump current, sideband rejection, IF/RF gain balancing, standby, and shutdown are also controlled with the serial Interface
The MAX2366 MAX2367 MAX2368 come in a 48-pin QFN-EP package and are specified for the extended (-40C to +85C) temperature range.
By Maxim Integrated Products
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