English
Language : 

CMT2257AW Datasheet, PDF (1/5 Pages) List of Unclassifed Manufacturers – 300 – 960 MHz OOK/(G)FSK Receiver with Decoder
CMT2257AW
CMT2257AW
300 – 960 MHz OOK/(G)FSK Receiver with Decoder
Features
 Embedded EEPROM
 Very Easy Development with RFPDK
 All Features Programmable
 3-wire SPI Interface for EEPROM Programming
 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
 Embedded 1920, 1527 and 2262 Data Decoder
 4 Data Outputs
 Configurable Duty-Cycle Receive Mode
 Low Power Consumption: 5.7 mA
 Low Sleep Current
 60 nA When Sleep Timer Off
 440 nA When Sleep Timer On
 ID Study, Factory Code Supported
 RoHS Compliant
 Available in QFN16(3x3) and SOP16 Packages
Descriptions
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.
Applications
 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)
Ordering Information
Part Number Frequency Package MOQ
CMT2257AW-EQR 868.35 MHz QFN16 5,000 pcs
CMT2257AW-ESR 868.35 MHz SOP16 2,500 pcs
QFN16 (3X3)
SOP16
Copyright © By CMOSTEK
Rev 1.0 | Page 1 / 5
www.hoperf.com