Datasheet SCT2400 (CML Microcircuits) - 9

SCT2400 Datasheet D2 PE5 I/O GPIO D3 VSSD1 P Digital ground (base band) D4 VDDD1 P Digital power supply for base band D5 PB4 I/O GPIO D6 PD5 I/O GPIO D7 VDDD2 P Digital power supply for base band D8 VR_OUT O Regulator output, connect to B11 VR_IN D9 AVSS9 P RF Ground D10 AVSS10 P RF Ground D11 VDD_RF1 P Power supply for RF D12 AVSS11 P RF Ground E1 PC1 I/O GPIO E2 VBAT P Backup Operating Voltage E3 VDDD3 P Digital power supply for base band E4 VSSD2 P Digital ground of base band E5 VSSD3 P Digital ground of base band E6 VDDD4 P Digital power supply for base band E7 VSSD4 P Digital ground of base band E8 AVSS12 P RF Ground E9 VR_SW - Leave open circuit E10 VDD_RF2 P Power supply for RF E11 VDD_RF3 P Power supply for RF Copyright ©2019 Wuxi Sicomm Communication Technologies, Inc 9 Document Outline Datasheet Front Page Change History 1. Overview 2. Features 3. Pin Configuration 4. RF Transceiver 4.1. Transmitter 4.2. Receiver 4.3. PLL&VCO 4.4. RC Oscillator 4.5. RF Front-end circuit 5. Baseband Core 5.1. Overview 5.2. Modem 5.3. DFR Protocol Stack 5.3.1. DFR Transmitter Signal Flow 5.3.2. DFR Receiver Signal Flow 6. Programmable Function Keys 7. Control Command Protocol 8. Interface and Timing Sequence 8.1. Power Supply 8.2. Reset and Power Up Timing 8.2.1. Baseband Core Operating Frequency 8.2.2. BOOT Mode 8.3. I2S High-speed Serial Port Timing 8.4. I2C Interface 8.5. UART Interface 8.6. USB Interface 8.7. Other Interfaces 9. Battery Management 10. Specification 10.1. Recommended Operating Conditions 10.2. Power Consumption 10.3. ESD 10.4. Parameter Performance 11. Reference Schematic Diagram 12. Text messaging support 13. Package Information 14. Ordering Information Appendix A End of Document