STM32WB50CG datasheet(22/119 Pages) STMICROELECTRONICS

部件名	STM32WB50CG

功能描述	Multiprotocol wireless 32-bit MCU Arm®-based Cortex®-M4 with FPU, Bluetooth® 5.2 or 802.15.4 radio solution

PDF	119 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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22 / 119 page

Functional overview

STM32WB50CG STM32WB30CE

22/119

DS13047 Rev 5

Figure 4. External components for the RF part

Note:

For more details refer to AN5165 “Development of RF hardware using STM32WB

microcontrollers” available on www.st.com.

3.7

Power supply management

3.7.1

Power supply schemes

The devices have different voltage supplies (see Figure 6) and can operate within the

following voltage ranges:



VDD = 2.0 to 3.6 V: external power supply for I/Os (VDDIO), the internal regulator and

system functions such as RF, reset, power management and internal clocks. It is

provided externally through VDD pins. VDDRF must be always connected to VDD pins.



VDDA = 2.0 to 3.6 V: external analog power supply for ADC,. The VDDA voltage level

can be independent from the VDD voltage. When not used VDDA must be connected to

VDD.

Table 4. Typical external components

Component

Description

Value

Decoupling capacitance for RF

100 nF // 100 pF

32 MHz crystal(1)

1. e.g. NDK reference: NX2016SA 32 MHz EXS00A-CS06654.

32 MHz

Antenna filter

Antenna filter and matching network

Refer to AN5165, on www.st.com

Antenna

2.4 GHz band antenna

MS53575V1

STM32WB

microcontroller

VDD

OSC_IN

OSC_OUT

VDDRF

VSSRF

RF1

Antenna

Cf1

Cf2

Lf1

Lf2

Antenna filter

(including exposed pad)

32 MHz

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