Datasheet SCT2400 (CML Microcircuits) - 10

SCT2400 Datasheet E12 VDD_RF4 P Power supply for RF F1 PC2 I/O GPIO F2 PC13_KEY1 (2) I Connection for Function key F3 VDDD5 P Digital power supply for base band F4 VSSD5 P Digital ground of base band F5 VDDD6 P Digital power supply for base band F6 VSSD6 P Digital ground of base band F7 VSSD7 P Digital ground of base band F8 VSSD8 P Digital ground of base band F9 VCAP2 O Connect a ceramic 2.2uF capacitor to ground F10 SWDIO I/O SWDIO for MCU SWD port F11 USB_FS_DP I/O USB interface positive F12 USB_FS_DM I/O USB interface negative G1 PC3_PTT I Connect to PTT button Connect to external oscillator which is optional, G2 OSCIN I please check section 10.1 for more details G3 VDDD7 P Digital power supply for base band G4 VSSD9 P Digital ground of base band G5 VSSD10 P Digital ground of base band G6 VSSD11 P Digital ground of base band G7 VSSD12 P Digital ground of base band G8 UART_TX O UART transmitter Copyright ©2019 Wuxi Sicomm Communication Technologies, Inc 10 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