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CC3130 датащи(PDF) 32 Page - Texas Instruments |
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CC3130 датащи(HTML) 32 Page - Texas Instruments |
32 / 75 page 8.15.5.3 Fast Clock (Fref) Using an External Crystal The CC3130 device also incorporates an internal crystal oscillator to support a crystal-based fast clock. The crystal is fed directly between WLAN_XTAL_P (pin 23) and WLAN_XTAL_N (pin 22) with suitable loading capacitors. Figure 8-11 shows the crystal connections for the fast clock. WLAN_XTAL_P WLAN_XTAL_N 23 22 40 MHz GND GND 6.2 pF 6.2 pF SWAS031-030 A. The crystal capacitance must be tuned to ensure that the PPM requirement is met. See CC31xx & CC32xx Frequency Tuning for information on frequency tuning. Figure 8-11. Fast Clock Crystal Connections Section 8.15.5.3.1 lists the WLAN fast-clock crystal requirements. 8.15.5.3.1 WLAN Fast-Clock Crystal Requirements CHARACTERISTICS TEST CONDITIONS MIN TYP MAX UNIT Frequency 40 MHz Frequency accuracy Initial plus temperature plus aging ±20 ppm Crystal ESR 40 MHz 60 Ω CC3130 SWRS227 – MARCH 2020 www.ti.com 32 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated |
Аналогичный номер детали - CC3130 |
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Аналогичное описание - CC3130 |
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