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CC1150-RTY1 数据表(PDF) 48 Page - Texas Instruments |
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CC1150-RTY1 数据表(HTML) 48 Page - Texas Instruments |
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48 / 67 page  CC1150 SWRS037B – JANUARY 2006 – REVISED MARCH 2015 www.ti.com Table 5-35. 0x23: FSCAL3 – Frequency Synthesizer Calibration BIT FIELD TYPE RESET DESCRIPTION 7:6 FSCAL3[7:6] R/W 0x02 Frequency synthesizer calibration configuration. The value to write in this field before calibration is given by the SmartRF Studio software. 5:4 CHP_CURR_CAL_EN[1:0] R/W 0x02 Disable charge pump calibration stage when 0. 3:0 FSCAL3[3:0] R/W 0x09 Frequency synthesizer calibration result register. Digital bit vector defining the charge pump output current, on an exponential scale: I_OUT = I0·2FSCAL3[3:0]/4. Fast frequency hopping without calibration for each hop can be done by calibrating up front for each frequency and saving the resulting FSCAL3, FSCAL2 and FSCAL1 register values. Between each frequency hop, calibration can be replaced by writing the FSCAL3, FSCAL2 and FSCAL1 register values corresponding to the next RF frequency. Table 5-36. 0x24: FSCAL2 – Frequency Synthesizer Calibration BIT FIELD TYPE RESET DESCRIPTION 7:6 R0 Not Used. 5 VCO_CORE_H_EN R/W 0x0 Choose high (1)/ low (0) VCO. 5:0 FSCAL2[5:0] R/W 0x0A Frequency synthesizer calibration result register. VCO current calibration result and override value. Fast frequency hopping without calibration for each hop can be done by calibrating up front for each frequency and saving the resulting FSCAL3, FSCAL2 and FSCAL1 register values. Between each frequency hop, calibration can be replaced by writing the FSCAL3, FSCAL2 and FSCAL1 register values corresponding to the next RF frequency. Table 5-37. 0x25: FSCAL1 – Frequency Synthesizer Calibration BIT FIELD TYPE RESET DESCRIPTION 7:6 R0 Not Used. 5:0 FSCAL1[5:0] R/W 0x20 Frequency synthesizer calibration result register. Capacitor array setting for VCO coarse tuning. Fast frequency hopping without calibration for each hop can be done by calibrating up front for each frequency and saving the resulting FSCAL3, FSCAL2 and FSCAL1 register values. Between each frequency hop, calibration can be replaced by writing the FSCAL3, FSCAL2 and FSCAL1 register values corresponding to the next RF frequency. Table 5-38. 0x26: FSCAL0 – Frequency Synthesizer Calibration BIT FIELD TYPE RESET DESCRIPTION 7 Reserved R0 Not Used. 6:0 FSCAL0[6:0] R/W 0x0D Frequency synthesizer calibration control. The value to use in register field is given by the SmartRF Studio [11] software. Table 5-39. 0x29: FSTEST – Frequency Synthesizer Calibration Control BIT FIELD TYPE RESET DESCRIPTION 7:0 FSTEST[7:0] R/W 0x57 For test only. Do not write to this register. 48 Detailed Description Copyright © 2006–2015, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: CC1150 |
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