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BK3433 Datasheet_V0.7(1).pdf
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更新于2022-06-11
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《BK3433 Datasheet_V0.7(1).pdf》是关于Beken公司的一款芯片——BK3433的详细规格说明书。这款芯片主要应用于BLE(Bluetooth Low Energy)技术并支持触摸功能,是物联网设备和智能硬件中常用的低功耗蓝牙解决方案。
1. **特性**
BK3433芯片的主要特点在于其低功耗设计,适用于需要长时间运行且电池寿命至关重要的应用。它集成了触摸控制器,能够实现对设备的直观、灵敏的触控操作。此外,芯片还可能具有高集成度,包括射频(RF)收发器、蓝牙基带处理、Beken自家的蓝牙协议栈和晶体振荡器等关键模块,简化了系统设计并提高了性能稳定性。
2. **概述**
在概述部分, datasheet可能会详细介绍BK3433芯片如何在BLE系统中发挥作用,以及其在硬件设计中的优势。芯片可能具备快速唤醒和深度睡眠模式,以平衡工作性能与节能需求。同时,它可能支持多种蓝牙协议版本,确保与广泛设备的兼容性。
3. **引脚描述**
这一章节会列出芯片的所有引脚,解释每个引脚的功能,包括电源、地线、输入/输出信号,以及控制和状态引脚。引脚布局和配置对于正确连接外围电路至关重要,确保芯片能正常工作。
4. **功能描述**
4.1 操作模式
BK3433支持多种工作模式,如待机、空闲、接收、传输等,以适应不同应用场景。这些模式的切换旨在优化功耗,满足不同场景下的性能要求。
4.2 RF收发器
RF部分负责无线通信,包括发射和接收数据。它可能具有良好的射频性能,如高输出功率、低噪声系数和宽频率范围,确保信号的稳定传输和良好的链路质量。
4.3 蓝牙基带
负责蓝牙通信的基础信号处理,包括调制、解调、编码和解码。基带处理确保数据在蓝牙协议规定的物理层上正确传输。
4.4 Beken蓝牙协议栈
Beken的专有蓝牙协议栈是芯片的核心组件,它实现了蓝牙核心规范,允许设备进行配对、连接、数据交换等操作。这个协议栈可能包含低功耗蓝牙的所有必需服务和特征,提供用户友好的API接口,便于开发人员进行应用编程。
4.5 晶体振荡器
芯片内部的晶体振荡器为系统提供精确的时钟信号,保证数据传输的同步和精度。可能支持多种频率选择,以适应不同的蓝牙配置和系统需求。
BK3433芯片是面向BLE应用的高性能、低功耗解决方案,具备强大的无线连接能力和灵活的操作模式,同时集成的触摸功能增强了用户体验。开发者可以借助这款芯片轻松构建高效、智能的蓝牙设备。在实际应用中,了解和掌握这款芯片的详细规格将有助于优化硬件设计和软件开发,提升产品的整体性能和市场竞争力。
Contents
© 2021 Beken Corporation 2 DS-BK3433-E01 V0.7
Contents
Contents ................................................................................................................................................................................ 2
1. Features ......................................................................................................................................................................... 4
2. Overview ........................................................................................................................................................................ 6
3. Pin Description .............................................................................................................................................................. 7
4. Functional Description ................................................................................................................................................ 10
4.1 Modes of Operation .................................................................................................................................................................... 10
4.2 RF Transceiver ........................................................................................................................................................................... 10
4.3 Bluetooth Baseband ................................................................................................................................................................... 10
4.4 Beken Bluetooth Stack ............................................................................................................................................................... 11
4.5 Crystal Oscillator ......................................................................................................................................................................... 11
4.6 Clock ............................................................................................................................................................................................ 11
4.7 Reset ............................................................................................................................................................................................ 12
4.8 Power Management ................................................................................................................................................................... 12
4.9 GPIO ............................................................................................................................................................................................ 13
4.10 SPI ................................................................................................................................................................................................ 13
4.11 UART ........................................................................................................................................................................................... 13
4.12 I2C ................................................................................................................................................................................................ 13
4.13 PWM ............................................................................................................................................................................................ 14
4.13.1 Timer Mode ........................................................................................................................................................................ 14
4.13.2 PWM Mode ........................................................................................................................................................................ 14
4.13.3 Capture Mode .................................................................................................................................................................... 15
4.14 I2S ................................................................................................................................................................................................ 16
4.15 General Purpose SAR ADC...................................................................................................................................................... 16
4.16 Timer ............................................................................................................................................................................................ 16
4.17 IrDA Interface .............................................................................................................................................................................. 17
4.18 Temperature Sensor .................................................................................................................................................................. 17
上海博通代理:13662648446
Contents
© 2021 Beken Corporation 3 DS-BK3433-E01 V0.7
4.19 Touch Sensor .............................................................................................................................................................................. 17
5. Electrical Characteristics ............................................................................................................................................ 18
5.1 Absolute Maximum Ratings ...................................................................................................................................................... 18
5.2 Recommended Operating Conditions ..................................................................................................................................... 18
5.3 Buck ............................................................................................................................................................................................. 19
5.4 System LDO ................................................................................................................................................................................ 19
5.5 Analog LDO ................................................................................................................................................................................. 19
5.6 Digital LDO .................................................................................................................................................................................. 19
5.7 Crystal and Reference Clock .................................................................................................................................................... 19
5.8 Current Consumption ................................................................................................................................................................. 20
5.9 Bluetooth LE RF Characteristics - Receiver ............................................................................................................................ 20
5.10 Bluetooth LE RF Characteristics - Transmitter ........................................................................................................................ 21
5.11 SAR ADC Characteristics .......................................................................................................................................................... 22
6. Package Information .................................................................................................................................................. 24
7. Ordering Information ................................................................................................................................................... 26
Revision History .................................................................................................................................................................. 27
上海博通代理:13662648446
Features
© 2021 Beken Corporation 4 DS-BK3433-E01 V0.7
1. Features
Bluetooth
• Bluetooth 5.2 Low Energy compliant
• Supports Bluetooth LE 1 Mbps
• TX power up to +8 dBm
• RX sensitivity -95 dBm
Core and Memory
• 32-bit MCU at up to 120 MHz
• 256 KB Flash
• 128 KB RAM
• 128 KB ROM
• 64 KB Cache
• 32-bit eFuse
• UART for debugging and downloading
Clock Management
• External oscillator: 26 MHz crystal oscillator (X26M)
• Internal oscillator: 32 kHz ring oscillator (ROSC)
• 120 MHz PLL
Power Management
• 3.0 to 4.35 V VCC4BAT supply
• On-chip power-on reset (POR) and brown-out detector (BOD)
• Embedded buck (DC-DC) converter and LDO regulators
• Low power consumption:
- Active mode RX: TBD
- Active mode TX: TBD
- Deep sleep mode: TBD
- Shutdown mode: 0.7 μA
上海博通代理:13662648446
Features
© 2021 Beken Corporation 5 DS-BK3433-E01 V0.7
Peripherals
• 11 GPIOs
• 1x SPI
• 2x UART: 2 with hardware flow control, 1 with flash download support
• 1x I2C
• Up to 6x 32-bit PWM
• 1x I2S
• 12-bit SAR ADC, up to 4 channels
• 6x general-purpose timer/counter: 4x 32-bit and 2x 21-bit
• 1x Watchdog timer
• 1x low-power timer
• 1x IrDA decoder interface
• 1x temperature sensor
• Up to 6x touch sensor
Packaging
• QFN20 package, 3 x 3 mm
• Operating temperature range: -20 to +85°C
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