CMT2157B Datasheet (CMOSTEK) - 240MHz - 960MHz Single Chip OOK Transmitter

CMT2157B, 240MHz - 960MHz Single Chip OOK Transmitter

LED driving IO Burner port and enabled pin I Supply voltage input I Ground O RF output - No connected I Button 4 I Button 3，DATA pin of burner port.

Used to burn EEPROM.

I Button 2，CLK pin of burner port.

Used to burn EEPROM.

I Button 1，CSB pin of burner port.

Used to burn EEPROM.

Crystal

CMT2157B CMT2157B 240 MHz-960 MHz Single Chip OOK Transmitter with Encoder Instruction: CMT2157B is a single chip, high flexibility, ultra-low power consumption, OOK RF chip with encoder.

It is ideal for wireless applications between 240 MHz to 960 MHz.

The chip is fully compatible with the most commonly used coding formats such as 527, 1527, 2262 and 2240 in the market.

In addition, it also supports various user-defined coding.

The chip supports 4 freestanding buttons or up to 10 scanning but

CMT2157B Features

* Build-in EEPROM

* Simplify the engineering development by using RFPDK

* All functions can be configured

* Working frequency：240 MHz ~960 MHz

* Symbol rate：0.5 - 40 kbps

* Output power：0 - +13 dBm

* Working current：5.5 mA @ +10 dBm

* Sleep current：< 20 nA

* The