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EVB71120
Evaluation Board for MLX71120
Description
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FAQ
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Download EVB71120 Datasheet (PDF)
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EVB71120 General Description
The MLX71120 is a multi-band, single-channel RF receiver based on a double-conversion super-heterodyne architecture. It can receive FSK and ASK modulated signals. The IC is designed for general purpose applica-tions for example in the European bands at 433MHz and 868MHz or for similar applications in North America or Asia, e.g. at 315MHz or 915MHz. It is also well-suited for narrow-band applications according to the ARIB STD-T67 standard in the frequency range 426MHz to 470MHz.
The receiver’s extended temperature and supply voltage ranges make the device a perfect fit for automotive or similar applications where harsh environmental conditions are expected.
EVB71120 Features and Benefits
Dual RF input for antenna space and frequency diversity, LNA cascading or differential feeding
Fully integrated PLL-based synthesizer
2nd mixer with image rejection
Reception of ASK or FSK modulated signals
Wide operating voltage and temperature ranges
Very low standby current consumption
Low operating current consumption
External IF filters 455kHz or 10.7MHz
Internal FSK demodulator
Average or peak detection data slicer mode
RSSI output with high dynamic range for RF level indication
Output noise cancellation filter
MCU clock output
High over-all frequency accuracy
EVB71120 Related Products
Part Number
Description
MLX71120
Receiver - 300 to 930MHz FSK/FM/ASK, Multi-Band, Single-Channel, external IF filter (32L QFN 5x5 Qu
EVB71120 Applications
EVB71120 Documentation
DataSheet
File Type
Size
Revision
Date
Action
EVB71120 Description
PDF
700.5 KB
005
10/19/2009
Product flyers
File Type
Size
Revision
Date
Action
MLX71120 Product Information
PDF
498.7 KB
09-07
9/18/2007
Referenc Design (Gerber File)
File Type
Size
Revision
Date
Action
Gerber File for Connector Board EVB71120
ZIP
30.2 KB
C-2
1/11/2008
Reference
File Type
Size
Revision
Date
Action
Wireless Automotive Entry & Go Selection Guide
PDF
22.9 KB
3
4/27/2012
EVB71120 Tools
EVB71120 Environmental Information
This text will be replaced
EVB71120 In The Press
EVB71120 Frequently asked Questions
EVB71120
Question
In the EVB71120 data sheet in the fig. 6 the selection of 10,7 MHz IF is made by a connection of IFSEL to GND. Is it correct?
Answer
For an intermediate frequency IF2 of 10.7MHz, the IFSEL has to be connected to Vcc (current setting of the EVB). For IF2 of 455kHz, the IFSEL has to be connected to GND. You will find such information in the last version of EVB71120 available on our web-site.
MLX71120 and Manchester
Question
I understood from data sheet that with RZ coding like Manchester the average detection works better but if I try it on EVB71120 the DTAO signal is continuosly low. Only if I use peak detection I can see received data on DTAO. Can someone explain it to me? Thank you
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