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CC1010-RTR1 Scheda tecnica(PDF) 117 Page - Texas Instruments |
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CC1010-RTR1 Scheda tecnica(HTML) 117 Page - Texas Instruments |
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117 / 152 page  CC1010 SWRS047 Page 117 of 152 Write CAL: CAL_START=0 End of calibration Wait for maximum 26 ms, or Read CAL and wait until CAL.CAL_COMPLETE=1 Start dual calibration Either frequency register A or B is selected Write RFMAIN: RXTX = 0; F_REG = 0; RX_PD = 0; TX_PD = 1; FS_PD = 0; CORE_PD=0; BIAS_PD=0; Write FREQ_A, FREQ_B Write CAL.CAL_DUAL = 1 Frequency registers A and B are both used for RX mode (or both for TX mode) Write CAL.CAL_START=1 Dual calibration is performed. Result is stored in TEST0 and TEST2, for both frequency A and B registers Write CURRENT.VCO_CURRENT = RX current Write PLL.REFDIV = RX reference divider Write TEST6=0x1B ‘RX current’ is the VCO current to be used in RX mode. TEST6 = 0x3B if TX mode Calibration time depends on the reference frequency, see text. Write CAL: CAL_START=0 End of calibration Wait for maximum 26 ms, or Read CAL and wait until CAL.CAL_COMPLETE=1 Start dual calibration Either frequency register A or B is selected Write RFMAIN: RXTX = 0; F_REG = 0; RX_PD = 0; TX_PD = 1; FS_PD = 0; CORE_PD=0; BIAS_PD=0; Write FREQ_A, FREQ_B Write CAL.CAL_DUAL = 1 Frequency registers A and B are both used for RX mode (or both for TX mode) Write CAL.CAL_START=1 Dual calibration is performed. Result is stored in TEST0 and TEST2, for both frequency A and B registers Write CURRENT.VCO_CURRENT = RX current Write PLL.REFDIV = RX reference divider Write TEST6=0x1B ‘RX current’ is the VCO current to be used in RX mode. TEST6 = 0x3B if TX mode Calibration time depends on the reference frequency, see text. Figure 35. Dual calibration algorithm for RX mode |
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