Rainbow-electronics MAX2769B Uživatelský manuál stáhnout pdf

MAX2769B

Universal GPS Receiver

�� Maxim Integrated Products 1

Block Diagram

19-5875; Rev 1; 8/11

Ordering Information appears at end of data sheet.

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

refer to www.maxim-ic.com/MAX2769B.related.

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

com plete 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

within a ±30Hz (f

XTAL

= 32MHz) accuracy while operat-

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)

LNAOUT

CC_RF

MIXIN

ANTFLAG

CLKOUT

XTAL

LNA2

PGM

LNA1

CPOUT

CC_VCO

SCLK

ANTBIAS

CC_ADC

N.C.

SDATA

CC_CP

CC_IF

CCD

19 17 16

3 5

4 6

N.C.

SHDN

ADC

FILTER

PLL

LNA2

LNA1

VCO

900

3-WIRE

INTERFACE

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.

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MAX2769B 1
Universal GPS Receiver 1

Shrnutí obsahu

Strany 1 - Universal GPS Receiver

MAX2769BUniversal GPS Receiver �� Maxim Integrated Products 1Block Diagram19-5875;

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�� Maxim Integrated Products 10MAX2769BUniversal GPS ReceiverTypical Application Ci

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�� Maxim Integrated Products 11MAX2769BUniversal GPS ReceiverPin DescriptionPin Con

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�� Maxim Integrated Products 12MAX2769BUniversal GPS ReceiverPin Description (conti

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�� Maxim Integrated Products 13MAX2769BUniversal GPS ReceiverFigure 1. Schematic of

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�� Maxim Integrated Products 14MAX2769BUniversal GPS ReceiverSynthesizerThe MAX2769

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�� Maxim Integrated Products 15MAX2769BUniversal GPS ReceiverFigure 2. ADC Quantiza

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�� Maxim Integrated Products 16MAX2769BUniversal GPS ReceiverDSP InterfaceGPS data

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�� Maxim Integrated Products 17MAX2769BUniversal GPS ReceiverPreconfigured Device S

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�� Maxim Integrated Products 18MAX2769BUniversal GPS ReceiverFigure 5. 3-Wire Timin

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�� Maxim Integrated Products 19MAX2769BUniversal GPS ReceiverDetailed Register Defi

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�� Maxim Integrated Products 2MAX2769BUniversal GPS ReceiverVCC_ to Ground ...

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�� Maxim Integrated Products 20MAX2769BUniversal GPS ReceiverTable 8. Configuration

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�� Maxim Integrated Products 21MAX2769BUniversal GPS ReceiverTable 9. Configuration

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�� Maxim Integrated Products 22MAX2769BUniversal GPS ReceiverTable 10. PLL Configur

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�� Maxim Integrated Products 23MAX2769BUniversal GPS ReceiverTable 14. Clock Fracti

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�� Maxim Integrated Products 24MAX2769BUniversal GPS ReceiverOrdering InformationCh

Strany 18

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are

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�� Maxim Integrated Products 3MAX2769BUniversal GPS ReceiverAC ELECTRICAL CHARACTE

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�� Maxim Integrated Products 4MAX2769BUniversal GPS ReceiverAC ELECTRICAL CHARACTE

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�� Maxim Integrated Products 5MAX2769BUniversal GPS ReceiverTypical Operating Char

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�� Maxim Integrated Products 6MAX2769BUniversal GPS ReceiverTypical Operating Char

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�� Maxim Integrated Products 7MAX2769BUniversal GPS ReceiverTypical Operating Char

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�� Maxim Integrated Products 8MAX2769BUniversal GPS ReceiverTypical Operating Char

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�� Maxim Integrated Products 9MAX2769BUniversal GPS ReceiverTypical Operating Char

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