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CC1070-RTR1 数据表(PDF) 49 Page - Texas Instruments |
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CC1070-RTR1 数据表(HTML) 49 Page - Texas Instruments |
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49 / 57 page  CC1070 SWRS043 Page 49 of 58 PA_POWER Register (1Ch) REGISTER NAME Default value Active Description PA_POWER[7:4] PA_HIGH [3:0] 0 - Controls output power in high-power array 0: High-power array is off 1: Minimum high-power array output power … 15: Maximum high-power array output power PA_POWER[3:0] PA_LOW[3:0] 15 - Controls output power in low-power array 0: Low-power array is off 1: Minimum low-power array output power … 15: Maximum low-power array output power It is more efficient in terms of current consumption to use either the lower or upper 4-bits in the PA_POWER register to control the power. POWERDOWN Register (20h) REGISTER NAME Default value Active Description POWERDOWN[7] PA_PD 0 H Sets PA in power-down when PD_MODE[1:0]=2 POWERDOWN[6] VCO_PD 0 H Sets VCO in power-down when PD_MODE[1:0]=2 POWERDOWN[5] BUFF_PD 0 H Sets VCO divider, LO buffers and prescaler in power-down when PD_MODE[1:0]=2 POWERDOWN[4] CHP_PD 0 H Sets charge pump in power-down when PD_MODE[1:0]=2 POWERDOWN[3] - reserved POWERDOWN[2] - reserved POWERDOWN[1] - reserved POWERDOWN[0] - reserved TEST1 Register (21h, for test only) REGISTER NAME Default value Active Description TEST1[7:4] CAL_DAC_OPEN[3:0] 4 - Calibration DAC override value, active when BREAK_LOOP=1 TEST1[3:0] CHP_CO[3:0] 13 - Charge pump current override value TEST2 Register (22h, for test only) REGISTER NAME Default value Active Description TEST2[7] BREAK_LOOP 0 H 0: PLL loop closed 1: PLL loop open TEST2[6] CHP_OVERRIDE 0 H 0: use calibrated value 1: use CHP_CO[3:0] value TEST2[5] VCO_OVERRIDE 0 H 0: use calibrated value 1: use VCO_AO[4:0] value TEST2[4:0] VCO_AO[4:0] 16 - VCO_ARRAY override value TEST3 Register (23h, for test only) REGISTER NAME Default value Active Description TEST3[7] VCO_CAL_MANUAL 0 H Enables “manual” VCO calibration (test only) TEST3[6] VCO_CAL_OVERRIDE 0 H Override VCO current calibration 0: Use calibrated value 1: Use VCO_CO[5:0] value VCO_CAL_OVERRIDE controls VCO_CAL_CLK if VCO_CAL_MANUAL=1. Negative transitions are then used to sample VCO_CAL_COMP. TEST3[5:0] VCO_CO[5:0] 6 - VCO_CAL_CURRENT override value |
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