Low Power RF & Wireless Connectivity

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Low Power RF & Wireless Connectivity

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CC1000
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  • Forum Post: CC1000 General Review / Crystal MFG and Part Number

    Z2771
    Has anyone had any experience using the CC1000? (+/-) Can someone recommend a crystal MFG and Part# for it? (915MHz) Thanks!
    on Dec 19, 2008

  • Forum Post: Re: Bypass caps & filtering

    Sverre
    The reference desing component values have been found to be the optimum ones w.r.t RF performance through extensive testing in the TI lab. Any RF device will be sensitivie to incoming noise and it good design practice to isolate the RF power from the MCU power (say) by a series bead.
    on Apr 24, 2009

  • Forum Post: Sourcing Inductors in Europe for CC1000

    MrColin
    Hi! Im looking for a little bit on information on sourcing components in Europe (UK specifically) to do with my CC1000 design. In the datasheet the recommended inductor for establishing the correct PLL is the Koa KL732ATE33NJ. I thought it would be possible to find an inductor from RS or Farnell...
    on Jun 2, 2009

  • Forum Post: Re: CC1000 configuration and transmission problem

    esy
    Hi Pratik, I see you've been struggling here for a while. I'm not an CC1000 expert, but I'll see if I can help. 1) I assume you are talking about using the radio in synchronous mode. The DCLK on the receiver will start as soon as the receiving radio enters RX mode. It will then give...
    on Dec 15, 2009

  • Forum Post: CC1000 Lock information validity

    Yves OESCH
    Hi, I am getting strange behaviour from the CC1000 lock detect circuitery. If I remove completely the coil of the VCO the PLL cannot lock, this is clear. But sometimes, I get a HIGH logic level on CHP_OUT. (LOCK register 0Dh contains 0001 in bits [7:4], which means LOCK_CONTINUOUS according to datatsheet...
    on Mar 9, 2010

  • Forum Post: Re: CC1000 configuration and transmission problem

    mihaigalos
    I kind of have the same problem; CC1000 with Atmega128 interface, no clock on DCLK output. I've successfully written and read the internal registers of CC1000. I can confirm it is receiving something because the RSSI pin changes its analogue value when a carrier is present (read through ADC conversion...
    on Apr 26, 2010

  • Wiki Page: AN015 RF Modem Reference Design

    Kjetil
    This reference design for an RF modem demonstrates both low-level and protocollevel design using the CC1000 RF transceiver. Software and hardware are described in detail a pair of RF modems function as a wireless replacement for an ordinary RS-232 serial cable. The modem will function with equipment...
    on Nov 19, 2010

  • Wiki Page: AN011 Programming the CC1000 frequency for best sensitivity

    Kjetil
    The CC1000 is a highly integrated multichannel RF transceiver. Although it is designed with a frequency resolution of 250 Hz, there are some frequencies (with the right programming) that will give optimum sensitivity. There are no such settings for transmit, here the full resolution of 250 Hz can be...
    on Nov 19, 2010

  • Wiki Page: AN010 Using CC1000 for the Konnex standard

    Kjetil
    The CC1000 is a highly integrated multichannel FSK (Frequency Shift Keying) transceiver. Although it is designed to give fixed data rates for a specific crystal, this application note describes how to find a new crystal frequency in order to get a desired data rate. The Konnex standard is a radio...
    on Nov 19, 2010

  • Wiki Page: AN009 CC1000 / CC1050 Microcontroller interfacing

    Kjetil
    The CC1000 RF transceiver is very easy to interface with a microcontroller. The chip is configured using a three-wire bus, comprising of PCLK, PDATA and PALE signals. Data interfacing is done via the DCLK and DIO pins. Three different modes for interfacing with a microcontroller are available. Data...
    on Nov 19, 2010

  • Wiki Page: AN002 Optimizing CC1000 for low LO leakage

    Kjetil
    The ETSI standard for license-free short range devices (SRDs) in the 433/868 MHz bands, EN 300 220, sets the requirement to receiver spurious emission to <–57 dBm. FCC (USA) has similar, but somewhat less strict regulations. This application note deals with LO leakage in detail. This includes...
    on Nov 19, 2010

  • Wiki Page: AN019 Crystal oscillator issues for CC1000 and CC1010

    Kjetil
    CC1000 and CC1010 use a PLL to generate the RF frequency. The reference frequency for the PLL is a crystal. If the reference frequency is incorrect, the RF frequency will also be incorrect. Due to the requency multiplication in the PLL, the error will be multiplied and can degrade the performance of...
    on Nov 19, 2010

  • Wiki Page: AN018 CC1000 Debugging Hints and Troubleshooting

    Kjetil
    CC1000 and the corresponding CC1000 Development Kit makes it very easy to evaluate the performance of the CC1000 chip, and in a short time, designers can develop their own RF modules based on this reference design. The SmartRF Studio software package provides the flexibility needed to automatically generate...
    on Nov 19, 2010

  • Wiki Page: AN016 CC1000 / CC1050 used with On-Off Keying

    Kjetil
    The CC1000 and CC1050 products from Texas Instruments are highly integrated multichannel FSK (Frequency Shift Keying) transceivers and transmitters respectively. However, in some applications OOK (On-Off Keying) or ASK (Amplitude Shift Keying) are required. FSK is a kind of FM (Frequency Modulation...
    on Nov 19, 2010

  • Wiki Page: AN021 Voltage Level Conversion

    Kjetil
    Texas Instruments RF-ICs operate with supply voltages lower than the old industrystandard 5V. Running at a lower voltage enables the ICs to be less expensive and have lower power consumption than they would have had if they used a 5 V supply. Also, lower operating voltages are good for battery-operated...
    on Nov 19, 2010

  • Wiki Page: AN081 Johanson Technology balun optimized for CC2530

    Kjetil
    AN081 -- Johanson Technology balun optimized for CC2530 ( http://focus.ti.com/general/docs/techdocsabstract.tsp?abstractName=swra297 ) The swra297.zip file ( www.ti.com/litv/zip/swra297 ) contains schematics and layout files for the CC2530 that contain one part from Johanson Technology interfacing...
    on Nov 19, 2010

  • Wiki Page: Antennas in development kits

    Kjetil
    Q: FAQ: Antennas in development kits Antennas used in the Low Power Wireless development kits. 433 MHz development kits: - Badland SMAFF-433 ( www.badland.co.uk ) 868-915 MHz development kits: - CC11xx: Previously Nearson S331AM-915, has recently been changed to Nearson S463AM-915 ( www.nearson...
    on Nov 22, 2010

  • Wiki Page: EMI shield

    Kjetil
    Q: FAQ: EMI shield by 613920 Does TI recommend an EMI shield to pass FCC? None of the reference designs make this recommendation. Usually TI LPW reference designs do not require an RF-Shield. This is generally achieved by filling ground on any available area not used for routing. This shortens...
    on Nov 22, 2010

  • Wiki Page: Sensitivity and link budget calculations

    Kjetil
    Q: FAQ: Sensitivity and link budget calculations Noise NF Range extension, S/N requirements . We got some experience data for sensitivity improvements: The noise factor has been retrieved by adding external LNA with known gain and noise characteristic and then monitored the enhanced sensitivity...
    on Nov 22, 2010

  • Wiki Page: VIA and solderpaste coverage for LPRF transceivers

    Kjetil
    Q: FAQ: VIA and solderpaste coverage for LPRF transceivers The area under the chip is used for grounding and shall be connected to the bottom ground plane with several vias for good thermal performance and to minimize inductance to ground . In the reference designs available from the TI web site...
    on Nov 22, 2010

  • Wiki Page: RF Testing in production

    Kjetil
    Q: FAQ: RF Testing in production The prototypes and the first batch should go through qualification testing. For later batches, samples can be submitted to qualification tests and remaining devices to production test. The level of testing must be seen in connection with cost and consequence of failure...
    on Nov 22, 2010

  • Wiki Page: Samples of LPRF devices

    Kjetil
    Q: FAQ: Samples of LPRF devices For samples of LPRF products, please see the following for direct sample requests: http://www.ti.com/home_b_samples
    on Nov 22, 2010

  • Wiki Page: Connector on CC EM modules

    Kjetil
    Q: FAQ: Connector on CC EM modules The PCB connector used on the EM (Evaluation Modules) for the chips mentioned above is: Samtec TFM-110-02-S-D-K-A. The connectors are 1200mils apart (centre to centre). More details, including the recommended footprint, can be found on: http://www.samtec.com/ftppub...
    on Nov 22, 2010

  • Forum Post: Crystal capacitance and CC1000

    Tom Marks
    We have an existing 14.7456MHz xtal used in several other designs that we would like to leverage in a CC1000-based product. The trouble is that it has an 18pF load capacitance (datasheet calls for 16pF). Is this really a problem? We don't want to introduce reliability problems, but can calibrate...
    on Jul 26, 2011

  • Forum Post: CC1101 transmit unmodulated signals

    Ben M
    Hi, All, I know CC1000 can be set into transmitter test mode to transmit unmodulated signals (pure sine wave). How is it done exactly? I did not find anything on the data sheet. I have a system using CC1101, can CC1101 also transmit unmodulated signals? Thanks a lot. Ben
    on Jan 11, 2012
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