MAX2740ECM-T, MAX2741, MAX2741A Selling Leads, Datasheet
MFG:MAXIM Package Cooled:TQFP-48 D/C:2000
MAX2740ECM-T, MAX2741, MAX2741A Datasheet download
Part Number: MAX2740ECM-T
MFG: MAXIM
Package Cooled: TQFP-48
D/C: 2000
MAX2740ECM-T, MAX2741, MAX2741A
- Table of contents:
Info of MAX2740ECM-T
Info of MAX2741
Info of MAX2741A
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About MAX002
PDF/DataSheet Download
Datasheet: MAX002
File Size: 42133 KB
Manufacturer: FILTRONIC [Filtronic Compound Semiconductors]
Download : Click here to Download
About MAX2741
PDF/DataSheet Download
Datasheet: MAX2741
File Size: 244802 KB
Manufacturer: MAXIM [Maxim Integrated Products]
Download : Click here to Download
About MAX002
PDF/DataSheet Download
Datasheet: MAX002
File Size: 42133 KB
Manufacturer: FILTRONIC [Filtronic Compound Semiconductors]
Download : Click here to Download
MAX2741 General Description
The MAX2741 L1-band GPS receiver IC offers a highperformance, compact solution for mobile handsets, PDAs, and automotive applications. Total voltage gain of 80dB and a 4.7dB cascaded noise figure can provide receiver sensitivity for applications requiring -185dBW for indoor tracking solutions.
This dual-conversion receiver downconverts the 1575.42MHz GPS signal to a 37.38MHz first IF, and then a 3.78MHz second IF. An integrated 2- or 3-bit ADC (1- bit SIGN, 1- or 2-bit MAG selectable) samples the second IF and outputs the digitized signals to the baseband processor.
The integrated synthesizer offers the flexibility in frequency planning to allow a single board design to be employed for reference frequencies from 2MHz to 26MHz. The integrated reference oscillator allows either TCXO or crystal operation.
The receiver runs from a 2.7V to 3.0V supply, and draws only 30mA when active. It is offered in a 28-pin thin QFN package, and is specified for -40°C to +85°C at 3V.
MAX2741 Maximum Ratings
VCC Pins to GND ....................................................-0.3V to +3.3V
VCC Pins to Each Other .........................................-0.3V to +0.3V
FILT to GND..................................................-0.3V to (VCC + 0.3V)
CMOS Inputs to GND (SHDN, SCLK,
CS, SDI).....................................................+0.3V to (VCC + 0.3V)
CMOS Outputs to GND (CLKOUT,
GPSIF_, SDO)..............................................-0.3V to (VCC + 0.3V)
RFIN to GND................................................-0.3V to (VCC + 0.3V)
First IF Filter I/O to GND (IFOUT±, IFIN±)..-0.3V to (VCC + 0.3V)
Crystal Inputs to GND (XTAL, REFCLK)........-0.3V to (VCC + 0.3V)
Maximum RF Input Power....................................................0dBm
Continuous Power Dissipation (TA = +85°C)
28-Pin Thin QFN (derate 20.8mW/°C above +70°C) .1000mW
Operating Temperature Range .......................-40°C to +85°C
Junction Temperature....................................................+150°C
Storage Temperature Range .........................-65°C to +160°C
Lead Temperature (soldering, 10s) ..............................+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
VCC Pins to Each Other .........................................-0.3V to +0.3V
FILT to GND..................................................-0.3V to (VCC + 0.3V)
CMOS Inputs to GND (SHDN, SCLK,
CS, SDI).....................................................+0.3V to (VCC + 0.3V)
CMOS Outputs to GND (CLKOUT,
GPSIF_, SDO)..............................................-0.3V to (VCC + 0.3V)
RFIN to GND................................................-0.3V to (VCC + 0.3V)
First IF Filter I/O to GND (IFOUT±, IFIN±)..-0.3V to (VCC + 0.3V)
Crystal Inputs to GND (XTAL, REFCLK)........-0.3V to (VCC + 0.3V)
Maximum RF Input Power....................................................0dBm
Continuous Power Dissipation (TA = +85°C)
28-Pin Thin QFN (derate 20.8mW/°C above +70°C) .1000mW
Operating Temperature Range .......................-40°C to +85°C
Junction Temperature....................................................+150°C
Storage Temperature Range .........................-65°C to +160°C
Lead Temperature (soldering, 10s) ..............................+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
MAX2741 Features
·Supports All Popular Handset Reference Frequencies Up to 26MHz
·4.7dB Cascaded Noise Figure
·80dB Cascaded Gain
·Tolerates -90dBm In-Band Jammer
·Tolerates +13dBm CDMA Out-of-Band Jammer at Device Input
·Integrated Synthesizer and VCO
·Integrated 2- or 3-Bit ADC
·50dB IF AGC Range
·Small 28-Pin Thin QFN Package
·SPI™ Control Interface
·Clock Output for Baseband Processor
·4.7dB Cascaded Noise Figure
·80dB Cascaded Gain
·Tolerates -90dBm In-Band Jammer
·Tolerates +13dBm CDMA Out-of-Band Jammer at Device Input
·Integrated Synthesizer and VCO
·Integrated 2- or 3-Bit ADC
·50dB IF AGC Range
·Small 28-Pin Thin QFN Package
·SPI™ Control Interface
·Clock Output for Baseband Processor
MAX2741 Typical Application
·In-Vehicle Navigation Systems (IVNS)
·Telematics (Vehicle and Asset Tracking,
·Inventory Management)
·Automotive Security
·Emergency Response Systems
·Emergency Road-Side Assistance
·Location-Based Services/Internet (PDAs)
·Digital Cameras/Camcorders
·Recreational Handhelds/Walkie-Talkies
·Geographical Information Systems (GIS)
·Consumer Electronics (Location-Based Games)
·Precision Timing
·Telematics (Vehicle and Asset Tracking,
·Inventory Management)
·Automotive Security
·Emergency Response Systems
·Emergency Road-Side Assistance
·Location-Based Services/Internet (PDAs)
·Digital Cameras/Camcorders
·Recreational Handhelds/Walkie-Talkies
·Geographical Information Systems (GIS)
·Consumer Electronics (Location-Based Games)
·Precision Timing
MAX2741 Connection Diagram
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