MAX2769B

Universal GPS Receiver

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Block Diagram

19-5875; Rev 0; 5/11

Ordering Information appears at end of data sheet.

For related parts and recommended products to use with this part,

E V A L U A T I O N K I T A V A I L A B L E

General 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 exter-

nal 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 mar-

ket. The integrated delta-sigma fractional-N frequency

synthesizer allows programming of the IF frequency

ing 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.

Applications

Automotive Navigation Systems

Location-Enabled Mobile Handsets

PNDs (Personal Navigation Devices)

Telematics (Asset Tracking, Inventory

Management)

Marine/Avionics Navigation

Software GPS

Laptops and Netbooks

Features

S

AEC-Q100 Automotive Qualified

S

GPS/GLONASS/Galileo/Compass Systems

S

40pF Output Clock Drive Capability

S

No External IF SAW or Discrete Filters Required

S

Programmable IF Frequency

S

Fractional-N Synthesizer with Integrated VCO

Supports Wide Range of Reference Frequencies

S

Dual-Input Uncommitted LNA for Separate Passive

and Active Antenna Inputs

S

1.4dB Cascade Noise Figure

S

Integrated Crystal Oscillator

S

Integrated Active Antenna Sensor

S

2.7V to 3.3V Supply Voltage

S

Small, 28-Pin, RoHS-Compliant, Thin QFN Lead-

Free Package (5mm x 5mm)

LNA2

PGM

LNA1

CPOUT

SCLK

12

10

9

24

26

11

25

27

N.C.

SDATA

8

28

+

13

23

22

19

17

16

3

5

18

4

6

15

7

20

2

21

1

N.C.

CS

FILTER

LNA2

LNA1

VCO

IDLE

MAX2769B

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.