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| NXP JN5148－001手持医疗保健设备开发方案 | |||||
作者：NXP 文章来源：NXP 点击数： 更新时间：2011-12-20  |
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The JN5148-001 is an ultra low power, high performance wireless microcontroller targeted at JenNet and ZigBee PRO networking applications. The device features an enhanced 32-bit RISC processor offering high coding efficiency through variable width instructions, a multi-stage instruction pipeline and low power operation with programmable clock speeds. It also includes a 2.4GHz IEEE802.15.4 compliant transceiver, 128kB of ROM, 128kB of RAM, and a rich mix of analogue and digital peripherals. The large memory footprint allows the device to run both a network stack (e.g. ZigBee PRO) and an embedded application or in a co-processor mode. The operating current is below 18mA, allowing operation direct from a coin cell. Enhanced peripherals include low power pulse counters running in sleep mode designed for pulse counting in AMR applications and a unique Time of Flight ranging engine, allowing accurate location services to be implemented on wireless sensor networks. It also includes a 4-wire I2S audio interface, to interface directly to mainstream audio CODECs, as well as conventional MCU peripherals. JN5148-001优势： • Single chip integrates transceiver and microcontroller for wireless sensor networks • Large memory footprint to run ZigBee PRO or JenNet together with an application • Very low current solution for long battery life • Highly featured 32-bit RISC CPU for high performance and low power • System BOM is low in component count and cost • Extensive user peripherals JN5148-001主要特性： 收发器： • 2.4GHz IEEE802.15.4 compliant • Time of Flight ranging engine • 128-bit AES security processor • MAC accelerator with packet formatting, CRCs, address check, auto-acks, timers • 500 & 667kbps data rate modes • Integrated sleep oscillator for low power • On chip power regulation for 2.0V to 3.6V battery operation • Deep sleep current 100nA • Sleep current with active sleep timer 1.25μA • <$0.50 external component cost • Rx current 17.5mA • Tx current 15.0mA • Receiver sensitivity -95dBm • Transmit power 2.5dBm MCU特性： • Low power 32-bit RISC CPU, 4 to 32MHz clock speed • Variable instruction width for high coding efficiency • Multi-stage instruction pipeline • 128kB ROM and 128kB RAM for bootloaded program code & data • JTAG debug interface • 4-input 12-bit ADC, 2 12-bit DACs, 2 comparators • 3 application timer/counters, • 2 UARTs • SPI port with 5 selects • 2-wire serial interface • 4-wire digital audio interface • Watchdog timer • Low power pulse counters • Up to 21 DIO Industrial temp (-40℃ to +85℃) 8x8mm 56-lead Punched QFN Lead-free and RoHS compliant JN5148-001应用： • Robust and secure low power wireless applications • ZigBee PRO and JenNet networks • Smart metering (e.g. AMR) • Home and commercial building automation • Location Aware services – e.g. Asset Tracking • Industrial systems • Telemetry • Remote Control • Toys and gaming peripherals  图1。JN5148-001方框图  图2。JN5148-001详细功能框图  图3。JN5148-001无线电框图  图4。JN5148-001调制解调器框图  图5。JN5148-001基带处理器框图  图6。JN5148-001采用印刷天线参考模块电路图 参考模块材料清单：  低成本手持医疗保健设备 Portable healthcare devices help monitor vital signs, restart the heart, and look inside the body with ultrasound before the patient is taken to the hospital. NXP’s goal is to contribute to home healthcare devices that are easy to use, interoperable and offer diagnostic value so that insurance will cover the cost. This eliminates the need for a hospital visit or stay and reduces healthcare costs. Many consumer medical devices today simply display health monitoring results and leave the interpretation and logging to end users and their doctors, newer devices feature simple connectivity to log and transmit results automatically. Connectivity is either wired, wireless or combined. NXP helps you succeed in the increasingly competitive home health care market, helping consumer medical devices offer the following features: 手持医疗保健设备特性： Ease of use Highly reliable and safe (government-regulated) operation Easy, secure connectivity Low-power operation (i.e. long battery life) Support for a wide range of voltages (especially lower voltages) High measurement accuracy Small form factors Affordable cost  图7。采用JN5148手持医疗保健设备框图 详情请见： http://www.nxp.com/documents/data_sheet/JN-DS-JN5148-1v7.pdf |
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