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參數(shù)資料
General Description
The MAX2740 is a complete global positioning system
(GPS) receiver from antenna output to digitizer input.
The signal path includes the LNA, two downconverters,
and variable-gain and fixed-gain amplifiers. By utilizing
a double-conversion superheterodyne architecture with
external surface acoustic wave (SAW) filters, high levels
of image rejection and blocking immunity are possible.
Receiver linearity has been maximized to improve oper-
ation in hostile RFI environments found in cellular base
stations. The MAX2740 also includes a high-perfor-
mance voltage-controlled oscillator (VCO) with low
phase noise for subcentimeter carrier phase applica-
tions, and a fixed-frequency synthesizer for generation
of all required on-chip local oscillators.
The unique frequency plan captured in the MAX2740 is
suitable for joint GPS/GLONASS receivers with minimal
external components. This allows the MAX2740 to pro-
vide a cost-effective and high-performance solution for
navigation and timing products that need maximum
satellite availability.
The MAX2740 is compatible with a high-performance
DSP engine capable of very fast time to first fix and
excellent multipath rejection.
________________________Applications
Base Station Timing
E911 Location Assistance
GPS Automotive and Consumer Receivers
Wireless Local-Loop Timing
Joint GPS/GLONASS Receivers
High-Precision Timing for SDH Networks
High-Positional-Accuracy Surveying Equipment
Features
o
High Selectivity for Hostile Base Station
Environments
o
Complete Antenna-to-Baseband Receiver
Solution
o
>100dB Total Receiver Gain Including All Filter
Losses
o
>50dB Automatic Gain Control (AGC) Range
o
Fully Balanced Topology for Minimum Spurious
Responses
o
Low Phase Noise VCO for Carrier Phase
Applications
o
Compatible with High-Performance Companion
DSP
M
Integrated GPS Receiver and Synthesizer
________________________________________________________________
Maxim Integrated Products
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
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IFMIX_OUT+
IFMIX_OUT-
VGA_IN+
VGA_IN-
GND
VGA_OUT+
VGA_OUT-
GND
FGA_IN+
FGA_IN-
GND
FGA_OUT+
GND
GND
LNA_IN
GND
GND
GND
RFMIX_IN-
GC
VCC_ANA
GND
GND
VCC_VCO
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TQFP-EP
/2
/6
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PFD
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MAX2740
ACTUAL SIZE
9mm x 9mm
48
TQFP
Pin Configuration/
Functional Diagram
19-1670; Rev 0; 4/00
Ordering Information
48 TQFP-EP*
PIN-PACKAGE
TEMP. RANGE
-40°C to +85°C
MAX2740ECM
*
Exposed paddle
PART
相關PDF資料 |
PDF描述 |
|---|---|
| MAX2741 | Integrated L1-Band GPS Receiver |
| MAX2741ETI | Integrated L1-Band GPS Receiver |
| MAX2742 | Single-Chip Global Positioning System Receiver Front-End |
| MAX2742ECM | Single-Chip Global Positioning System Receiver Front-End |
| MAX2751 | 2.4GHz Monolithic Voltage-Controlled Oscillators |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX2740ECM-T | 制造商:Maxim Integrated Products 功能描述:INTEGRATED GPS RECEIVER AND SYNTHESIZER 48 PINS TQFP PKG - Tape and Reel |
| MAX2741AETI+ | 功能描述:射頻接收器 Integrated L1-Band GPS Receiver RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| MAX2741AETI+T | 功能描述:射頻接收器 Integrated L1-Band GPS Receiver RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| MAX2741AEVKIT | 功能描述:GPS開發(fā)工具 MAX2741A Eval Kit RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Evaluation Boards 工具用于評估:IT600, STM32F20x 頻率:1.575 GHz 工作電源電壓:1.8 V 接口類型:Wireless |
| MAX2741ETI | 功能描述:射頻接收器 RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
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