CMOSTEK CMT2300A-EQR - Default Chapter; Table of Contents

CMT2300A
Rev1.0a | 2/50
www.cmostek.com
Table of Contents
1. Electrical Characteristics ....................................................................................................................4
1.1 Recommended Operation Condition ................................................................................................................... 4
1.2 Absolute Maximum Rating.................................................................................................................................. 4
1.3 Power Consumption ........................................................................................................................................... 5
1.4 Receiver ............................................................................................................................................................. 6
1.5 Transmitter ......................................................................................................................................................... 8
1.6 Settling Time ...................................................................................................................................................... 8
1.7 Frequency Synthesizer ....................................................................................................................................... 9
1.8 Crystal Oscillator .............................................................................................................................................. 10
1.9 Low Frequency Oscillator ................................................................................................................................. 10
1.10 Low Battery Detection ...................................................................................................................................... 11
1.11 Digital Interface ................................................................................................................................................ 11
1.12 Figures of Critical Parameters .......................................................................................................................... 11
1.12.1 Rx Current VS. Supply Voltage ................................................................................................................. 11
1.12.2 Rx Current VS. Voltage Temperature ....................................................................................................... 12
1.12.3 Sensitivity VS. Voltage ............................................................................................................................. 12
1.12.4 Sensitivity VS. Temperature ..................................................................................................................... 13
1.12.5 Tx Power VS. Supply Voltage .................................................................................................................. 14
1.12.6 Tx Phase Noise ........................................................................................................................................ 14
2. Pin Descriptions .................................................................................................................................16
3. Typical Application Schematic ..........................................................................................................18
3.1 Direct Tie Schematic Diagram .......................................................................................................................... 18
3.2 RF Switch Type Schematic .............................................................................................................................. 20
4. Function Descriptions .......................................................................................................................23
4.1 Transmitter ....................................................................................................................................................... 24
4.2 Receiver ........................................................................................................................................................... 24
4.3 Additional Functions ......................................................................................................................................... 24
4.3.1 Power-On Reset (POR) ........................................................................................................................... 24
4.3.2 Crystal Oscillator ...................................................................................................................................... 25
4.3.3 Sleep Timer .............................................................................................................................................. 26
4.3.4 Low Battery Detection .............................................................................................................................. 26
4.3.5 Received Signal Strength Indicator(RSSI) ............................................................................................... 26
4.3.6 Phase Jump Detector（PJD）................................................................................................................. 27
4.3.7 Automatic Frequency Control (AFC) ........................................................................................................ 27
4.3.8 Clock Data Recovery (CDR) .................................................................................................................... 28
4.3.9 Fast Frequency Hopping .......................................................................................................................... 28
5. Chip Operation ....................................................................................................................................29
5.1 SPI Interface..................................................................................................................................................... 29
5.2 FIFO ................................................................................................................................................................. 30
5.2.1 FIFO Read Operation .............................................................................................................................. 31
5.2.2 FIFO Associated Interrupt ........................................................................................................................ 32