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CMT2257AW

Remote IC

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1. Descriptions of RF Receiver IC CMT2257AW:


The CMT2257AW is a true single-chip, ultra low power and high performance device that consists of an OOK/(G)FSK RF receiver, a data decoder and 4 data output pins for various 300 to 960 MHz wireless applications. The device integrates a data decoder which is compatible with the most common used encoding format of 1527 and 2262, as well as a more flexible format of 1920 designed by CMOSTEK. The device delivers sensitivity up to -109 dBm (FSK, 9.6 ksps symbol rate, 868.35 MHz) while consuming only 5.7 mA current when it is always on.

 

An embedded EEPROM allows the frequency, symbol rate and other features to be programmed into the device using the CMOSTEK USB Programmer and RFPDK. Alternatively, in stock product of 868.35 MHz is available for immediate demands with no need of EEPROM programming. When pairing the device to CMOSTEK transmitters, the synchronization ID can be programmed into both of the transmitter and receiver during the manufacturing phase, or studied by the receiver from the transmitter remotely by end customers. The CMT2257AW is part of the CMOSTEK NextGenRFTM family,together with CMT215x series transmitters, they enable ultra high performance, low power consumption RF links.


2. Features of RF Receiver IC CMT2257AW:


● Embedded EEPROM 

   Very Easy Development with RFPDK 
   All Features Programmable 

● Frequency Range: 300 to 960 MHz 
● Symbol Rate: 0.1 to 100 ksps 
● Sensitivity: -109 dBm @ 9.6 ksps, FSK, 868.35 MHz 
● Stand-Alone, No External MCU Control Required< 20 nA 
● Embedded 1920, 1527 and 2262 Data Decoder 
● 4 Data Outputs 
● Configurable Duty-Cycle Receive Mode 
● Low Power Consumption: 5.7 mA 
● Low Sleep Current 
● ID Study, Factory Code Supported 
● RoHS Compliant 
● Available in QFN16(3x3) and SOP16 Packages


3. Applications of RF Receiver IC CMT2257AW:



● Low-Cost Consumer Electronics Applications
● Remote Control 
● Smart LED Control (On/Off Dimming) 
● Home Security and Alarm 
● Garage and Gate Openers 
● Home and Building Automation 

● Industrial Monitoring and Controls 
● Sensor Networks 
● Health Monitors 

● Remote Keyless Entry (RKE)


Design documents and resources
DEMO & Tools:
RFDK_PIC16_LCD V1.1hardware(131029)
2018-11-22
AN2004-RF67 communication example
2018-12-03
HopeRF_RFDK_RFMxx_DEMO_V2.1_operation_manual
2018-11-22
HopeRF_RF-EVB_manual_V1.21
2018-11-22
AN0002-Hopeduino platform construction guideline
2018-11-20
AN118 CMT2250A Configuration Guideline
2018-12-03
Design Guides:
AN0002-Hopeduino platform construction guideline
2018-11-22
Certification & Test Reports:
RF IC Reach
2020-05-15
Associated products
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