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CC11x1-Q1主要特性与典型电路图

日期:2012-8-31标签: (来源:互联网)

TI 公司的CC11x1-Q1是1GHz以下的低功耗分数N UHF器件,适用于ISM频段的315 MHz, 433 MHz, 868 MHz和915 MHz,稍加编程还可用在310-MHz348-MHz, 387-MHz464-MHz779-MHz928-MHz频段. CC11x1-Q1集成了高度可配置的基带调制解调器,支持各种调制格式,数据速率高达250kBaud,灵敏度高达–114 dBm,输出功率高达+10 dBm,工作温度高度125度C,主要用在315/433/868/915-MHz ISM/SRD频段的超低功耗无线应用,汽车服务连接,车库门开启器,TPMS系统以及遥控无线进入系统.本文介绍了CC11x1-Q1主要特性,简化方框图, 典型的315MHz/433MHz868MHz/915MHz应用电路以及应用电路材料清单.

Low-Power Sub-1-GHz Fractional-N UHF DEVICE Family for Automotive

The CC11x1-Q1 device family is designed for very low-power WIRELESS applications. The circuits are mainly intended for the Industrial, Scientific and Medical (ISM) and Short Range Device (SRD) frequency bands at 315 MHz, 433 MHz, 868 MHz, and 915 MHz, but can easily be programmed for operation at other frequencies in the 310-MHz to 348-MHz, 387-MHz to 464-MHz, and 779-MHz to 928-MHz bands.

The DEVICES integrate a highly configurable baseband modem. The modem supports various modulation formats and has a configurable data rate up to 250 kBaud. CC11x1-Q1 family provides extensive HARDWARE support for packet HANDLING, data buffering, burst transmissions, clear channel assessment, link quality indication, and wake-on-radio. The main operating parameters and the 64-byte transmit/receive FIFOs can be controlled via an SPI interface. In a typical SYSTEM, the devices are used together with a MICROCONTROLLER and a few additional passive components.

CC11x1-Q1主要特性:

Qualification in Accordance With AEC-Q100 Grade 1

Extended Temperature Range Up To 125℃

Radio-Frequency (RF) Performance

High Sensitivity (–114 dBm at 1.2 kBaud, 315 MHz, 1% Packet Error Rate)

Low Current Consumption (15.5 mA in Receive, 1.2 kBaud, 315 MHz)

Programmable OUTPUT Power up to +10 dBm for all Supported Frequencies

Excellent RECEIVER Selectivity and Blocking Performance

Programmable Data Rate From 1.2 kBaud to 250 kBaud

Frequency Bands: 310 MHz to 348 MHz, 387 MHz to 464 MHz,

and 779 MHz to 928 MHz

ANALOG Features

2-FSK, GFSK, and MSK Supported, as Well as OOK and Flexible

ASK Shaping

Suitable for Frequency-Hopping Systems Due to a Fast Settling

Frequency SYNTHESIZER: 90-μs Settling Time

Automatic Frequency Compensation (AFC) Can Align Frequency

Synthesizer to Received Center Frequency

INTEGRATED Analog Temperature Sensor

DIGITAL Features

Flexible Support for Packet-Oriented Systems: On-Chip Support

for Sync Word Detection, Address Check, Flexible Packet Length, and

Automatic CRC Handling

Efficient SPI Interface: All Registers Can Be Programmed With

One Burst Transfer

Digital RSSI Output

Programmable Channel FILTER Bandwidth

Programmable Carrier Sense (CS) Indicator

Programmable Preamble Quality Indicator (PQI) for Improved Protection

Against False Sync Word Detection in Random Noise

Support for Automatic Clear Channel Assessment (CCA)

Before Transmitting (for Listen-Before-Talk Systems)

Support for Per-Package Link Quality Indication (LQI)

Optional Automatic Whitening and Dewhitening of Data

Low-Power Features

Fast Startup Time: 240 μs From Sleep to Receive (RX) or Transmit (TX) Mode

Wake-On-Radio Functionality for Automatic Low-Power RX Polling

Separate 65-Byte RX and TX Data FIFOs (enables Burst Mode Data Transmission)

GENERAL

Few External Components: Completely On-Chip Frequency

Synthesizer, No External Filters or RF SWITCH Needed

Green Package: RoHS Compliant and No Antimony or Bromine

Small Size QFN 5-mm×5-mm 32-Pin Package

Suited for Systems Targeting Compliance With EN 300 220 (Europe)

and FCC CFR Part 15 (US)

Support for Asynchronous and Synchronous Serial Receive/

Transmit Mode for Backward Compatibility With Existing Radio

Communication Protocols

Designed for Automotive Applications

CC11x1-Q1应用:

Ultra-Low-Power Wireless Applications in the

315/433/868/915-MHz ISM/SRD Bands

REMOTE Keyless Entry Systems

Passive Entry/Passive Start Systems

Vehicle Service Links

Garage Door Opener

TPMS Systems

图1.CC11x1-Q1简化方框图

图2.CC11x1-Q1典型的315MHz/433MHz的应用电路

图3.CC11x1-Q1典型的868MHz/915MHz的应用电路

应用电路材料清单(BOM):