MAX2769B

Universal GPS Receiver

High-Performance, Automotive Grade GPS, GLONASS, Galileo, and Compass RF Receiver


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.

Key Features

  • AEC-Q100 Automotive Qualified
  • GPS/GLONASS/Galileo/Compass Systems
  • 40pF Output Clock Drive Capability
  • No External IF SAW or Discrete Filters 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
  • 2.7V to 3.3V Supply Voltage
  • Small, 28-Pin, RoHS-Compliant, Thin QFN Lead-Free Package (5mm x 5mm)

Applications/Uses

  • Automotive Navigation Systems
  • Laptops and Netbooks
  • Location-Enabled Mobile Handsets
  • Marine/Avionics Navigation
  • PNDs (Personal Navigation Devices)
  • Software GPS
  • Telematics (Asset Tracking, Inventory Management)
Part Number Ref. Clock Freq.
(MHz)
IF fOUT
(MHz)
IF Output Bits Noise Figure
(dB)
VSUPPLY
(V)
ISUPPLY
(mA)
Applications Solutions Band/ Freq.
(MHz)
Features Footprint
(mm x mm)
CMOS typ
MAX2769B  8 to 32 2.5 1 to 3 1.4 2.7 to 3.3 25
Compass
GLONASS
GPS
Gailileo
Cellular Handsets
Personal Navigation Devices
Smart Phones
1550 to 1610
1.4dB Cascaded Noise Figure
Dual-Input LNA Supports Active and Passive Antenna
Low-IF, Zero-IF, Software DSP Interfaces
5.0 x 5.0
See All GPS Receivers (3)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Technical Documents

Tutorial 5100 General Layout Guidelines for RF and Mixed-Signal PCBs

Quality and Environmental Data

Product Reliability Reports: MAX2769B.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

Tools & Models

Software
MAX2769B EVKIT Software

 

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