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CC1010-RTR1 Datasheet(PDF) 116 Page - Texas Instruments |
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CC1010-RTR1 Datasheet(HTML) 116 Page - Texas Instruments |
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116 / 152 page  CC1010 SWRS047 Page 116 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 single calibration RX frequency register A is calibrated first 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 = 0 Frequency register A is used for RX mode, register B for TX Write CAL.CAL_START=1 Calibration is performed in RX mode, Result is stored in TEST0 and TEST2, RX register 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 Write CAL.CAL_START=0 Wait for 26 ms, or Read CAL and wait until CAL.CAL_COMPLETE=1 TX frequency register B is calibrated second Write RFMAIN: RXTX = 1; F_REG = 1 RX_PD = 1; TX_PD = 0; FS_PD = 0 CORE_PD = 0; BIAS_PD = 0; RESET_N=1 Write CAL.CAL_START=1 Calibration is performed in TX mode, Result is stored in TEST0 and TEST2, TX registers Write CURRENT.VCO_CURRENT = TX current Write PLL.REFDIV = TX reference divider Write TEST6 = 0x3B Write PA_POW = 0x00 ‘TX current’ is the VCO current to be used in TX mode PA is turned off to prevent spurious emission 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 single calibration RX frequency register A is calibrated first 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 = 0 Frequency register A is used for RX mode, register B for TX Write CAL.CAL_START=1 Calibration is performed in RX mode, Result is stored in TEST0 and TEST2, RX register 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 Write CAL.CAL_START=0 Wait for 26 ms, or Read CAL and wait until CAL.CAL_COMPLETE=1 TX frequency register B is calibrated second Write RFMAIN: RXTX = 1; F_REG = 1 RX_PD = 1; TX_PD = 0; FS_PD = 0 CORE_PD = 0; BIAS_PD = 0; RESET_N=1 Write CAL.CAL_START=1 Calibration is performed in TX mode, Result is stored in TEST0 and TEST2, TX registers Write CURRENT.VCO_CURRENT = TX current Write PLL.REFDIV = TX reference divider Write TEST6 = 0x3B Write PA_POW = 0x00 ‘TX current’ is the VCO current to be used in TX mode PA is turned off to prevent spurious emission Calibration time depends on the reference frequency, see text. Figure 34. Single calibration algorithm for RX and TX |
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