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CC1312PSIP Datasheet(PDF) 24 Page - Texas Instruments |
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CC1312PSIP Datasheet(HTML) 24 Page - Texas Instruments |
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24 / 80 page  Measured on a Texas Instruments reference design with Tc = 25 °C, VDDS = 3.0 V, unless otherwise noted. MIN TYP MAX UNIT Start-up time 5 µs (1) Accuracy relative to the calibration source (XOSC_HF) 8.14.3.3 2 MHz RC Oscillator (RCOSC_MF) Measured on a Texas Instruments reference design with Tc = 25 °C, VDDS = 3.0 V, unless otherwise noted. MIN TYP MAX UNIT Calibrated frequency 2 MHz Start-up time 5 µs 8.14.3.4 32.768 kHz Crystal Oscillator (XOSC_LF) and RTC accuracy The module contains a 32.768 kHz crystal that is connected to the oscillator. The RTC based on the 32.768 kHz crystal is calibrated in production and is temperature compensated in software, see Clock Systems for more information. Measured on a Texas Instruments reference design with Tc = 25 °C, VDDS = 3.0 V, unless otherwise noted. MIN TYP MAX UNIT Crystal frequency 32.768 kHz Initial frequency accuracy at 25° -20 20 ppm 32kHz crystal aging, first year -3 3 ppm Real Time Clock (RTC) accuracy using temperature compensation for the 32kHz xtal (if enabled in software), excluding aging, -40° to 105° degrees. Based on estimated crystal drift across temperature from the manufacturer's crystal specification. -100 50 ppm Real Time Clock (RTC) accuracy using temperature compensation for the 32kHz xtal (if enabled in software), excluding aging, -40° to 65° degrees. Based on estimated crystal drift across temperature from the manufacturer's crystal specification. -50 50 ppm 8.14.3.5 32 kHz RC Oscillator (RCOSC_LF) Measured on a Texas Instruments reference design with Tc = 25 °C, VDDS = 3.0 V, unless otherwise noted. MIN TYP MAX UNIT Frequency 32.8 kHz Calibrated RTC variation(1) Calibrated periodically against XOSC_HF(2) ±600(3) ppm Temperature coefficient 50 ppm/°C (1) When using RCOSC_LF as source for the low frequency system clock (SCLK_LF), the accuracy of the SCLK_LF-derived Real Time Clock (RTC) can be improved by measuring RCOSC_LF relative to XOSC_HF and compensating for the RTC tick speed. This functionality is available through the TI-provided Power driver. Note that since the SIP module already contains a 32kHz crystal, using the RCOSC_LF will be less relewant. (2) TI driver software calibrates the RTC every time XOSC_HF is enabled. (3) Some device's variation can exceed 1000 ppm. Further calibration will not improve variation. CC1312PSIP SWRS293 – NOVEMBER 2023 www.ti.com 24 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated Product Folder Links: CC1312PSIP |
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