CMOSTEK CMT2300A User Manual

CMT2300A
Rev 1.0 | Page1/46
www.cmostek.com
CMT2300A
Ultra Low Power Sub-1GHz RF Transceiver
Copyright © By CMOSTEK
Features:
 Frequency range: 127 ~1020MHz
 Modem: OOK, (G)FSK 和(G)MSK
 Data rate: 0.5 ~ 300 kbps
 Sensitivity: -121 dBm 2.0 kbps, F
RF
= 433.92 MHz
-111 dBm 50 kbps, F
RF
= 433.92 MHz
 Voltage range: 1.8 ~3.6 V
 Transmit current: 23 mA @ 13 dBm, 433.92 MHz, FSK
72 mA @ 20 dBm, 433.92 MHz, FSK,
 Rx current: 8.5 mA @ 433.92 MHz, FSK (High power mode)
7.2 mA @ 433.92 MHz, FSK (Low power mode)
 Super Low Power receive mode
 Sleep current: 300 nA, Duty Cycle = OFF
800 nA, Duty Cycle = ON
 Receiver Features:
 Fast and stable automatic frequency control (AFC)
 3 types of clock data recovery system (CDR)
 Fast and accurate signal detection (PJD)
 4-wire SPI interface
 Direct and packet mode supported
 Configurable packet handler and 64-Byte FIFO.
 NRZ, Manchester codec, Whitening codec, Forward Error
Correction (FEC)
Applications:
 Automatic meter reading
 Home security and building automation
 ISM band data communication
 Industrial monitoring and control
 Remote control and security system
 Remote key entry
 Wireless sensor node
 Tag reader
Ordering information
Model
Frequency
Package
MOQ
CMT2300A-EQR
433.92 MHz
QFN16
3,000 pcs
For more information, see Page 42 Table 23.
Descriptions:
CMT2300A is an ultra-low power, high performance, OOK (G)
FSK RF transceiver suitable for a variety of 140 to 1020 MHz
wireless applications. It is part of the CMOSTEK NextGenRF
TM
RF product line. The product line contains the complete
transmitters, receivers and transceivers.The high integration of
CMT2300A simplifies the peripheral materials required in the
system design. Up to +20 dBmTx Power and -121 dBm
sensitivity optimize the performance of the application. It
supports a variety of packet formats and codec methodsto
meet the needs of various different applications.In addition,
CMT2300A also supports64-byte Tx/Rx FIFO, GPIO and
interrupt configuration, Duty-Cycle operation mode, channel
sensing, high-precision RSSI, low-voltage detection, power-on
reset, low frequency clock output, manual fast frequency
hopping, squelch and etc. The features make the application
design more flexible and differentiated. CMT2300A operates
from 1.8 V to 3.6 V. Only 8.5 mA current is consumed when the
sensitivity is -121 dBm, SuperLow Power mode can further
reduce the chip power consumption. Only 23mA Txcurrent is
consumed when the output power is 13dBm.
QFN16 (3X3)
17
GND
SCLK
SDIO
CSB
FCSB
XI
XO
GPIO
2
GPIO
1
AVDD
PA
RFIN
RFIP
GPIO
3
DVDD
DGND
AGND
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
CMT2300A top view

CMOSTEK CMT2300A Specifications

General

Brand	CMOSTEK
Model	CMT2300A
Category	Transceiver
Language	English

Summary

CMT2300A Electrical Characteristics

Recommended Operation Condition

Specifies the recommended operating parameters including voltage and temperature.

Absolute Maximum Rating

Defines the extreme limits beyond which device damage may occur.

Power Consumption Specification

Details the current draw in various operating modes like Sleep, Standby, RX, and TX.

Receiver Specifications

Lists key performance parameters for the receiver, including data rate and sensitivity.

Transmitter Specifications

Outlines performance metrics for the transmitter, such as output power and harmonics.

Settle Time

Describes the time required for various transitions between operational states.

Frequency Synthesizer Specifications

Details the chip's frequency range, resolution, tuning time, and phase noise.

Crystal Oscillator Characteristics

Provides specifications for the crystal oscillator, including frequency and tolerance.

Low Frequency Oscillator Specifications

Details the specifications for the internal low frequency oscillator.

Low Battery Detection Specifications

Defines the accuracy and functionality of the low battery detection feature.

Digital Interface Specifications

Outlines the electrical characteristics for digital interfaces like SPI.

Figures of Critical Parameters

Graphical representations of key performance parameters versus voltage or temperature.

CMT2300A Pin Descriptions

Typical Application Schematic

Direct Tie Schematic Diagram

Illustrates a direct connection application schematic for the CMT2300A.

RF Switch Type Schematic

Presents an application schematic using an RF switch type configuration.

Function Descriptions

Transmitter Functionality

Details the operation and features of the CMT2300A transmitter.

Receiver Functionality

Explains the operation and features of the CMT2300A receiver.

Power-On Reset (POR)

Describes the Power-On Reset circuit and its triggering conditions.

Crystal Oscillator

Explains the role and specifications of the crystal oscillator.

Sleep Timer

Details the integrated sleep timer functionality for power saving.

Low Battery Detection

Describes the low voltage detection feature and how to read its result.

Received Signal Strength Indicator (RSSI)

Explains the RSSI feature for evaluating signal strength and its configuration.

Phase Jump Detector (PJD)

Details the PJD functionality for FSK demodulation and signal determination.

Automatic Frequency Control (AFC)

Describes the AFC mechanism for minimizing frequency errors in reception.

Clock Data Recovery (CDR)

Explains the Clock Data Recovery systems for synchronizing symbol rates.

Fast Frequency Hopping

Details the mechanism for fast frequency hopping for channel switching.

CMT2300A Chip Operation

SPI Interface

Details the 4-wire SPI interface for communication and register access.

FIFO Operation

Describes the 32-byte RX and TX FIFOs and their access methods.

Startup Timing

Explains the power-up sequence, crystal startup, and system initialization timing.

Operation State

Defines the various operating states of the chip and their transitions.

GPIO and Interrupt Configuration

Details the configuration of GPIO ports and interrupt handling.

CMT2300A Packet Handler

Direct Mode Operation

Describes data transmission and reception in direct mode.

Packet Mode Operation

Explains packet handling, including different packet formats and processing.

Low Power Operation Modes

Duty Cycle Operation Mode

Details the duty cycle modes for TX and RX to save power.

Supper Low Power (SLP) Receive Mode

Explains advanced low-power receive schemes for extended battery life.

Receiver Power VS Performance Configuration

Describes register settings for balancing receiver power consumption and sensitivity.

CMT2300A User Register Map

CMT2300A Ordering Information

CMT2300A Packaging Information

CMT2300A Top Marking

CMT2300A Document Change List

CMT2300A Contact Information