原标题：基于ON NCN5130的KNX双绞线收发器的智能楼宇方案

　　1999年5月，欧洲三大总线协议EIB、BatiBus和EHSA合并成立了Konnex协会，提出了KNX协议。该协议以EIB为基础，兼顾了BatiBus和EHSA的物理层规范，并吸收了BatiBus和EHSA中配置模式等优点，提供了家庭、楼宇智能化的完整解决方案。

　　KNX是唯一全球性的住宅和楼宇控制标准。在KNX系统中，总线接法是区域总线下接主干线，主干线下接总线，系统允许有15个区域，即有15条区域总线，每条区域总线或者主干线允许连接多达15条总线，而每条总线最多允许连接64台设备，这主要取决于电源供应和设备功耗。每一条区域总线、主干线或总线，都需要一个变压器来供电，每一条总线之间通过隔离器来区分。在整个系统中，所有的传感器都通过数据线与制动器连接，而制动器则通过控制电源电路来控制电器。所有器件都通过同一条总线进行数据通信，传感器发送命令数据，相应地址上的制动器就执行相应的功能。KNX电缆由一对双绞线组成，其中一条双绞线用于数据传输(红色为CE+ 黑色为CE-)，另一条双绞线给电子器件提供电源。

　　场景应用图

　　产品实体图

　　展示板照片

　　方案方块图

　　方案方块图2

　　核心技术优势

　　1. 轻松掌控楼宇功能，实现多种控制

　　2. 灯光控制，包括开关及调光

　　3. 窗帘开合或升降，百叶窗的升降和调角

　　4. 插座，热水器及各种家电的控制控调(HVAC)系统控制

　　5. 家庭安防系统光线感应控制

　　6. 定时控制

　　方案规格

　　• 9600 baud KNX Communication Speed

　　• Supervision of KNX Bus Voltage and Current

　　• Supports Bus Current Consumption up to 40 mA

　　• High Efficient DC−DC Converters

　　♦ 3.3 V Fixed

　　♦ 1.2 V to 21 V Selectable

　　• Control and Monitoring of Power Regulators

　　• Linear 20 V Regulator

　　• Buffering of Sent Data Frames (Extended Frames Supported)

　　• Selectable UART or SPI Interface to Host Controller

　　• Selectable UART and SPI baud Rate to Host Controller

　　• Optional CRC on UART to the Host

　　• Optional Received Frame−end with MARKER Service

　　• Optional Direct Analog Signaling to Host

　　• Operates with Industry Standard Low Cost 16 MHz Quartz

　　• Generates Clock of 8 or 16 MHz for External Devices

　　• Auto Acknowledge (optional)

　　• Auto Polling (optional)

　　• Temperature Monitoring

　　• Extended Operating Temperature Range −40°C to +105°C

　　• These Devices are Pb−Free and are RoHS Compliant

　　技术文档

　　【NCN5130】

　　NCN5130: Full Featured KNX Transceiver for Twisted Pair Networks

　　NCN5130 is a receiver−transmitter IC suitable for use in KNX twisted pair networks (KNX TP1−256). NCN5130 embeds both PHY and MAC layers and handles the transmission and reception of data on the bus. It generates from the unregulated bus voltage stabilized voltages for its own power needs as well as to power external devices. NCN5130 assures safe coupling to and decoupling from the bus. Various monitors (bus voltage, current, temperature...) are made available through an analog pin.

　　特性

　　KNX certified TP transceiver with embedded PHY and MAC layers (TP1-256) . 9600 Bauds communication speed.

　　Two high efficient DC-DC converters + one linear regulator :

　　- DC-DC1 : fixed 3.3 V

　　- DC-DC2 : adjustable between 1.2 and 21 V

　　- 20V linear regulator

　　Bus Current Consumption up to 40 mA

　　Supervision of temperature, KNX bus voltage and current

　　Control and monitoring of power regulators

　　Buffering of sent data frames (extended frames upported)

　　Selectable UART/SPI interface and baud rate to host controller.

　　Comprehensive clocking system

　　- Operates with industry standard low cost 16 MHz quartz

　　- Can generate 8/16 MHz clock for the external MCU

　　Extended ambient temperature range -40 C to +105 C

　　优势

　　NCN5130 can be used in any TP1-256 application

　　Most KNX applications can directly be supplied from the NCN5130 removing the need for external costly power supply.

　　Best in Class overall system efficiency.

　　Enables variety of high end/ power demanding KNX applications.

　　应用

　　Home Automation

　　Smart Building

　　终端产品

　　Smart lighting & switches

　　Ventilation and air conditioning

　　Thermostats

　　Alarms and smoke detectors

　　Shutters and blinds

　　Alarms

　　Occupancy detection