碧德(BDE)是美国德州仪器(TI)第三方合作伙伴
BDE-WF3135N极大地简化了Internet连接的实现。该双频Wi-Fi®网络处理器模块可添加到任何低成本、低功耗的微控制器(MCU);它集成了Wi-Fi®和Internet的所有协议,大大降低了对主机MCU软件的要求。
这个基于rom的子系统包括一个802.11 a/b/g/n双频2.4 GHz和5 GHz的无线电、基带和MAC,具有强大的硬件加密引擎。通过内置的安全协议,WF3135N解决方案提供了健壮而简单的安全体验。WF3135N采用LGA封装,易于与所有所需组件布局,包括串行Flash、射频滤波器、双工器、晶体和完全集成的无源组件。
这一代引入了新的功能,进一步简化了事物与Internet的连接。WF3135N的主要新功能包括:
•802.11 a/b/g/n:
2.4 GHz和5 GHz支持
•2.4 GHz与蓝牙®低能量无线电共存
•天线多样性
•更多并发安全套接字,最多16个
•能够生成证书签名请求(CSR)的唯一设备标识符
•在线证书状态协议(OCSP)
•Wi-Fi Alliance®通过物联网低功耗认证
•卸载模板包传输的无主机模式
•改进了快速扫描。
Key Features
- Fully integrated and green/RoHS module includes all required clocks, serial peripheral interface (SPI) flash, and passives
- Integrated Wi-Fi® and internet protocols
- 802.11a/b/g/n: 2.4 GHz and 5 GHz
- Rich set of IoT security features helps developers protect data
- Low-power modes for battery powered application
- Coexistence with 2.4 GHz radios
- Industrial temperature: –40°C to +85°C
- Wi-Fi network processor subsystem:
- Wi-Fi core:
•802.11 a/b/g/n 2.4 GHz and 5 GHz
• Modes:
– Access Point (AP)
– Station (STA)
–Wi-Fi Direct® (only supported 2.4 GHz)
• Security:
– WEP
– WPA™/ WPA2™ PSK
– WPA2 Enterprise
– WPA3™ Personal
- Internet and application protocols:
- HTTPs server, mDNS, DNS-SD, DHCP
• IPv4 and IPv6 TCP/IP stack
• 16 BSD sockets (fully secured TLS v1.2 and SSL 3.0)
- Built-in power management
- subsystem:
• Configurable low-power profiles (always on, intermittently connected, tag)
• Advanced low-power modes
• Integrated DC/DC regulators
- Application throughput
- UDP: 16 Mbps
- TCP : 13 Mbps
- Multilayered Security Features:
- Separate execution environments
- Networking security
- Device identity and key
- Hardware accelerator cryptographic engines (AES, DES, SHA/MD5, CRC)
- File system security (encryption, authentication, access control)
- Initial secure programming
- Software tamper detection
- Secure boot
- Certificate signing request (CSR)
- Unique per device key pair
- Recovery mechanism – ability to recover to factory defaults
- Power-Management Subsystem:
- Integrated DC/DC converters support a wide range of supply voltage:
• Single wide-voltage supply,
VBAT: 2.3 V to 3.6 V
- Advanced low-power modes:
• Shutdown: 1 μA
hibernate: 5.5 μA
• Low-power deep sleep (LPDS): 115 μA
• Idle connected (MCU in LPDS): 710 μA
• RX traffic (MCU active): 53 mA
• TX traffic (MCU active): 223 mA
- Wi-Fi TX power
- 2.4 GHz: 16 dBm at 1 DSSS
- 5 GHz: 15.1 dBm at 6 OFDM
- Wi-Fi RX sensitivity
- 2.4 GHz: –94.5 dBm at 1 DSSS
- 5 GHz: –89 dBm at 6 OFDM
- Additional integrated components on module
- 40.0 MHz crystal with internal oscillator
- 32.768 kHz crystal (RTC)
- 32 Mbit SPI Serial Flash
- RF filters, diplexer, and passive components
- QFM package
- 1.27-mm pitch, 63-pin, 20.5-mm × 17.5-mm QFM package for easy assembly and low-cost PCB design
Applications
- For Internet of Things applications, such as:
- Medical and Healthcare
• Multiparameter Patient Monitor
• Electrocardiogram (ECG)
• Electronic Hospital Bed & Bed Control
• Telehealth Systems
- Building and Home Automation:
• HVAC Systems & Thermostat
• Video Surveillance, Video Doorbells, and Low-Power Camera
• Building Security Systems and E-locks
- Appliances
- Asset Tracking
- Factory Automation
- Grid Infrastructure