PDF《MG127 BLE Transceiver》

上海巨微集成电路有限公司 版本: 1.

3 Shanghai Macrogiga Electronics Ltd. CO. All rights reserved MG127 BLE Transceiver Application Note Revision History: Rev. No. History Issue Date Remark 0.1 Initial issue April 29,

2016 Preliminary 0.2 Update ch10 about PCB July 11,

2016 Preliminary 0.3 Update MISO description Jan 19,

2017 Preliminary 1.0 Add receive characteristic Jan 31,

2018 Release 1.1 Update receive characteristic April 2,

2018 Release 1.2 Update reflow profile May 24,

2018 Release 1.3 Add carrier output July 25,

2018 Release Important Notice: MACROGIGA reserves the right to make changes to its products or to discontinue any integrated circuit product or service without notice. MACROGIGA integrated circuit products are not designed, intended, authorized, or warranted to be suitable for use in life-support applications, devices or systems or other critical applications. Use in such applications is done at the sole discretion of the customer. MACROGIGA will not warrant the use of its devices in such applications. 上海巨微集成电路有限公司 版本: 1.3 Shanghai Macrogiga Electronics Ltd. CO. All rights reserved 目录 1. 概述.3 2. MG127 管脚描述.3 3. 数据和控制接口.4 4. 寄存器信息.5 5. 应用电路原理图.6 6. 电气特性.7 7. 功耗指标.7 8. MG127 封装.8 9. Reflow Profile.9 10. PCB 布线注意事项.10 11. 载波输出.11 12. FAQ.11 上海巨微集成电路有限公司 版本: 1.3 Shanghai Macrogiga Electronics Ltd. CO. All rights reserved 1. 概述 MG127 是低功耗、低成本的 BLE 收发器,内部集成了发射机、接收机、GFSK 调制解调器和 BLE 基带处理. MG127 采用 DFN3x3 封装,只需搭配低成本 MCU 和少数外围被动器件,即可实现 BLE 遥控、蓝牙电子秤等应 用. ? 电源电压 1.9~3.6,可以采用一个纽扣电池(3.0v)供电 ? 3uA 待机电流 ? 20mA@0dBm 持续发射 ? 18mA 持续接收 ? DFN3x3 封装,外围 BOM 很少 ? 只需低成本 MCU 配合 2. MG127 管脚描述 MG127 采用 DFN10 封装,芯片大小为 3mm x 3mm. Pin No. Symbol I/O Function Description

1 SCK DI SPI Clock

2 DVDD Power Digital VDD 1.2v Output

3 MOSI DI/DO SPI Slave Data Input/Output

4 XTALO AO Crystal Pin

5 XTALI AI Crystal Pin

6 ANT RF Antenna interface

7 VBAT Power Power Supply

8 IRQ DO Interrupt pin

9 CT DI Test use

10 CSN DI SPI Chip Select 11* GND Ground Power ground, back panel Table2.1 Pin Description 上海巨微集成电路有限公司 版本: 1.3 Shanghai Macrogiga Electronics Ltd. CO. All rights reserved 3. 数据和控制接口 MG127 通过

3 线SPI 接口和 IRQ 信号与 MCU 进行通信,接口包括以下信号: ? IRQ (this signal is active low and is controlled by maskable interrupt sources) ? CSN (SPI signal) ? SCK (SPI signal) ? MOSI (SPI signal) 其中 MOSI 信号用于输入和输出.MCU 可以用

3 个GPIO 模拟 SPI,我们提供

3 线SPI 的参考 C 源码. Figure3.1 SPI timing diagram Symbol Parameters Min. Max Unit Tcc CSN to SCK setup

2 - ns Tch SCK high time

40 - ns Tcl SCK low time

40 - ns Tcwh CSN inactive time

50 - ns Tcch SCK to CSN hold

2 - ns Tdc Data to SCK setup

2 - ns 上海巨微集成电路有限公司 版本: 1.3 Shanghai Macrogiga Electronics Ltd. CO. All rights reserved Tdh SCK to Data hold

2 - ns 4. 寄存器信息 可以通过 SPI 访问这些寄存器. Address (Hex) Mnemonic Bit Reset Value Description

01 CH_NO BLE channel 7:6

0 reserved 5:0

0 BLE advertise channel number(37,38,39)

02 MODE_TYPE ADV/Data Tx/Rx mode 7:4