Status
Active: In Production.
Description
The MAX2769B is a next-generation Global Navigation
Satellite System (GNSS) receiver covering GPS,
GLONASS, Galileo, and Compass navigation satellite
systems on a single chip. This single-conversion GNSS
receiver is designed to provide high performance for
industrial and automotive applications.
Designed on Maxim's advanced, low-power SiGe BiCMOS
process technology, the MAX2769B offers the highest
performance and integration at a low cost. Incorporated
on the chip is the complete receiver chain, including a
dual-input LNA and mixer, followed by the image-rejected
filter, PGA, VCO, fractional-N frequency synthesizer,
crystal oscillator, and a multibit ADC. The total cascaded
noise figure of this receiver is as low as 1.4dB.
The MAX2769B completely eliminates the need for external
IF filters by implementing on-chip monolithic filters
and requires only a few external components to form a
complete low-cost GPS RF receiver solution.
The MAX2769B is the most flexible receiver on the market.
The integrated delta-sigma fractional-N frequency
synthesizer allows programming of the IF frequency
within a ±30Hz (fXTAL = 32MHz) accuracy while operating
with any reference or crystal frequencies that are
available in the host system. The ADC outputs CMOS
logic levels with 1 or 2 quantized bits for both I and Q
channels, or up to 3 quantized bits for the I channel. I and
Q analog outputs are also available.
The MAX2769B is packaged in a 5mm x 5mm, 28-pin thin
QFN package with an exposed paddle.
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