Tuning fork crystal unit cylinder type rohs compliant pb free cfs206 cfs145 features frequency range. Abracon corporations products are cots commercialofftheshelf products. This device is available in commercial ds32khz and industrial ds32khzn. Selection of the right crystal, correct load circuit, and proper board layout are important for a stable crystal oscillator. Msp430 32khz crystal oscillators texas instruments.
Tolerance typically 5 ppm to 30 ppm all of these crystal parameters are given by the crystal data sheet but can be also measured at the real crystal using, for example, crystal impedance bridge, a vector voltmeter, or a network analyzer. The most important thing to keep in mind is that the capacitor should be tight tolerance with an appropriate dielectric material one that isnt highly temperature dependent, such as np0c0g. Taitien tuning fork crystal units,alldatasheet, datasheet, datasheet search site for. Discover more here and configure your product today. Datasheet the isl12057 device is a lowpower, realtime clock that is pin compatible and functionally equivalent to maxim ds37 with clockcalendar and alarm function. Also, page 20 of the c1111 datasheet that you linked to says 1218pf is the range to use for the 32. Msp430 32khz crystal oscillators all msp430 mcu 32khz oscillators have builtin load capacitors, cl1 and cl2. Applications iot metering industrial automotive health care wearables. Selecting loading capacitor values for 32 khz crystal. Ds1629 2wire digital thermometer and realtime clock. Pricing and availability on millions of electronic components from digikey electronics. There are other values that will do this all multiples of 32768, but this value is very common.
In some msp430 mcu versions, these load capacitors are fixed. The realtime clock tracks time with separate registers for hours, minutes, and seconds. This device addresses applications requiring better. Datasheet search engine for electronic components and semiconductors. Pricing and availability on millions of electronic components from digikey. Description the ds32khz is a temperaturecompensated crystal oscillator tcxo with an output frequency of 32. With a heat resistant plastic package, the abs25 has reflow capability and extended temperatures of.
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