GP4020
GPS Receiver Baseband Processor
DS5134
ISSUE 4.4
May 2002
Features
鈥?Complete GPS correlator and Firefly MF1
microcontroller core
鈥?ARM 7TDMI
TM
(Thumb
廬
) Microprocessor, with JTAG
ICEBreaker
TM
Debug Interface
鈥?Fully Configurable External Data Bus
鈥?12 Fully Independent Correlation Channels
鈥?Low Voltage Operation: 3路3V
鈥?Low Current Power鈥揇own Mode
鈥?1PPS UTC Aligned Timing Output
鈥?Dual UART
鈥?3-wire B碌ILD Serial Input/Output (BSIO) Interface
鈥?8 General Purpose Input/Output (GPIO) Lines
鈥?Boot ROM, allowing Software Upload via UART
鈥?8K Bytes Internal SRAM
鈥?Compatible with GP2015 and GP2010 RF Front Ends
Ordering Information
GP4020/IG/GQ1N (trays)
GP4020/IG/GQ1Q (tape and reel, 1000 units per reel)
The GP4020 is available in a 100 pin PQFP package in
Industrial (-40擄C to +85擄C) grade. The ordering code is
standard for screened devices
Description
The GP4020 is a complete digital baseband processor
for a Global Positioning System (GPS) receiver. It
combines the 12-channel correlator function of the
GP2021 with an advanced ARM7TDMI (Thumb)
microprocessor to achieve a higher level of integration,
reduced system cost, reduced power consumption and
added functionality. The GP4020 complements the
GP2015 and GP2010 C/A code RF downconverters
available from Zarlink Semiconductor.
The correlator section contains 12 identical tracking
module blocks, one for each channel. Each channel
contains all the components necessary for acquiring
and tracking the received signal, and also contains
other functional blocks, which are used to produce part
of the measurement data set. Individual channels may
be deactivated for systems not requiring full 12-channel
operation and thus allowing for reduced power
consumption and processor loading.
The microprocessor section contains the Firefly MF1
microcontroller core, which includes an ARM7TDMI
with a Thumb instruction de-compressor plus the Firefly
B碌ILD module. Also included are a second UART,
B碌ILD Serial I/O, General I/O and Watchdog functions.
Applications
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
GPS Navigation Systems
GPS Geodetic Receivers
Time Transfer Receivers
Automatic Vehicle Location (AVL)
E911 Emergency Positioning
Related Products
Part
GP2015
GP2010
Description
GPS Receiver RF Front End
(TQFP 48 package)
GPS Receiver RF Front End
(PQFP 44 package)
Data sheet
DS4374
DS4056
Absolute Maximum Ratings
Supply voltage (V
DD
) from ground (GND)
-0路5V to +5路0V
Bias for 5V inputs
+7路0V max.
Input voltage (any input pin)
GND-0路5V to V
DD
+0路5V
Output voltage (any output pin)
GND-0路5V to V
DD
+0路5V
Storage temperature
-55擄C to +150擄C
Static discharge (HBM)*
2kV
*Mil Std 883 Human Body Model = discharge from 100pF through
1500鈩?between any 2 pins
Manufactured under licence from ARM Ltd
ARM and the ARM logo are trademarks of Advanced RISC Machines Ltd
GP4020/IG相關(guān)型號PDF文件下載
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英文版
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4 AMP HIGH RELIABILITY SOFT GLASS PASSIVATED SILICON DIODES
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英文版
4 AMP HIGH RELIABILITY SOFT GLASS PASSIVATED SILICON DIODES
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英文版
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英文版
4 AMP HIGH RELIABILITY SOFT GLASS PASSIVATED SILICON DIODES
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英文版
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