_ gps/glonass/galileo receivers
_ no external if saw or discrete fil ters required
_ programmable if frequency
_ fractional-n synthesizer with integrated vco supports wide range of reference frequencies
_ dual-input uncommitted lna for separate passive and active antenna inputs
_ 1.4db cascade noise figure
_ integrated crystal oscillator
_ integrated active antenna sensor
_ 10ma supply current in low-power mode
_ 2.7v to 3.3v supply voltage
_ small, 28-pin, rohs-compliant, thin qfn lead- free package (5mm x 5mm)
max2769应用：
location-enabled mobile handsets
pnds (personal navigation devices)
pmps (personal media players)
pdas (personal digital assistants)
in-vehicle navigation systems
telematics (asset tracking, inventory
management)
recreational/marine navigation/avionics
software gps
laptops and ultra-mobile pcs
digital still cameras and camcorders
图1。max2769典型应用电路
元件列表：
图2。dsp顶层连接接口和控制信号框图
max2769评估板
the max2769 evaluation kit (ev kit) simplifies evaluation of the max2769 universal gps receiver. it enables testing of the device performance and requires no additional support circuitry. standard 50sma connectors are included on the ev kit for the inputs and
outputs to allow for quick and easy evaluation on the test bench. the evaluation kit is fully assembled and tested at the factory.
this document provides a component list, a list of equipment required to evaluate the device, a straightforward test procedure to verify functionality, a description of the ev kit circuit, the circuit schematic, and artwork for each layer of the printed-circuit board (pcb).
max2769评估板主要特性：
♦ easy evaluation of the max2769 ic
♦ +2.7v to +3.3v single-supply operation
♦ 50sma connector on the rf ports and for the baseband outputs
♦ all critical peripheral components included
♦ parallel port for 3-wire interfacing
♦ pc control software available upon request
图3。max2769评估板电路图
max2769评估板元件列表：
图4。max2769评估板顶层pcb布局图
