The MAX2769 is the industry's first global navigation satellite system (GNSS) receiver covering GPS, GLONASS, and Galileo navigation satellite systems on a single chip. This single-conversion, low-IF GNSS receiver is designed to provide high performance for a wide range of consumer applications, including mobile handsets.
Designed on Maxim's advanced, low-power SiGe BiCMOS process technology, the MAX2769 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 MAX2769 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 receiver solution.
The MAX2769 is the most flexible receiver on the market. The integrated delta-sigma fractional-N frequency synthesizer allows programming of the IF frequency within a ±40Hz accuracy while operating with any reference or crystal frequencies that are available in the host system. The integrated ADC outputs 1 or 2 quantized bits for both I and Q channels, or up to 3 quantized bits for the I channel. Output data is available either at the CMOS logic or at the limited differential logic levels.
The MAX2769 is packaged in a compact 5mm x 5mm, 28-pin thin QFN package with an exposed paddle. The part is also available in die form. Contact the factory for further information.
Key Features
Applications/Uses
GPS/GLONASS/Galileo Receivers
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 Temperature Sensor
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)
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices:
1-6
of
6
MAX2769
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
Temp
RoHS/Lead-Free? Materials Analysis
MAX2769E/W-T
Land Pattern: Not Available
-40°C to +85°C
See data sheet
MAX2769E/W-TGB6
Land Pattern: Not Available
-40°C to +85°C
See data sheet
MAX2769ETI+
TQFN;28 pin;26 mm²
Outline Drawing: 21-0140 (PDF)
Land Pattern: 90-0023 (PDF)
Use pkgcode/variation: T2855+3*
