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CC1020-RTR1 数据表(PDF) 45 Page - Texas Instruments |
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CC1020-RTR1 数据表(HTML) 45 Page - Texas Instruments |
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45 / 95 page ![]() CC1020 www.ti.com SWRS046H – NOVEMBER 2006 – REVISED MARCH 2015 The frequency is swept from 300 MHz to 2800 MHz. Values are listed in Table 5-10. Figure 5-25. Typical optimum PA load impedance, 868/915 MHz Table 5-10. Impedances at the First Three Harmonics (868/915 MHz Matching Network) FREQUENCY REAL IMAGINARY (MHz) (Ohms) (Ohms) 868 15 24 915 20 35 1736 1.5 18 1830 1.7 22 2604 3.2 44 2745 3.6 45 5.12 Frequency Synthesizer 5.12.1 VCO, Charge Pump and PLL Loop Filter The VCO is completely integrated and operates in the 1608 to 1920 MHz range. A frequency divider is used to get a frequency in the UHF range (402 to 470 and 804 to 960 MHz). The BANDSELECT bit in the ANALOG register selects the frequency band. Copyright © 2006–2015, Texas Instruments Incorporated Detailed Description 45 Submit Documentation Feedback Product Folder Links: CC1020 |
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