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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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CC1020-RTR1 Datenblatt(PDF) 53 Page - Texas Instruments |
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CC1020-RTR1 Datenblatt(HTML) 53 Page - Texas Instruments |
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53 / 95 page  Turn on crystal oscillator core MAIN: PD_MODE=1, FS_PD=1, XOSC_PD=0, BIAS_PD=1 Wait 1.2 ms* Power Down mode *Time to wait depends on the crystal frequency and the load capacitance Wait until lock detected from LOCK pin or STATUS register Turn on RX: MAIN: PD_MODE = 0 Wait until lock detected from LOCK pin or STATUS register Turn on TX: MAIN: PD_MODE = 0 Set PA_POWER RX mode TX mode Turn off RX/TX: MAIN: PD_MODE = 1, FS_PD=1, XOSC_PD=1, BIAS_PD=1 PA_POWER=00h Power Down mode Turn on frequency synthesizer MAIN: RXTX=0, F_REG=0, FS_PD=0 Turn on frequency synthesizer MAIN: RXTX=1, F_REG=1, FS_PD=0 RX or TX? RX TX Turn on bias generator. MAIN: BIAS_PD=0 Wait 150 us Turn on crystal oscillator core MAIN: PD_MODE=1, FS_PD=1, XOSC_PD=0, BIAS_PD=1 Wait 1.2 ms* Power Down mode Power Down mode *Time to wait depends on the crystal frequency and the load capacitance Wait until lock detected from LOCK pin or STATUS register Turn on RX: MAIN: PD_MODE = 0 Wait until lock detected from LOCK pin or STATUS register Turn on TX: MAIN: PD_MODE = 0 Set PA_POWER Wait until lock detected from LOCK pin or STATUS register Turn on RX: MAIN: PD_MODE = 0 Wait until lock detected from LOCK pin or STATUS register Turn on TX: MAIN: PD_MODE = 0 Set PA_POWER RX mode TX mode RX mode RX mode TX mode TX mode Turn off RX/TX: MAIN: PD_MODE = 1, FS_PD=1, XOSC_PD=1, BIAS_PD=1 PA_POWER=00h Power Down mode Power Down mode Turn on frequency synthesizer MAIN: RXTX=0, F_REG=0, FS_PD=0 Turn on frequency synthesizer MAIN: RXTX=1, F_REG=1, FS_PD=0 Turn on frequency synthesizer MAIN: RXTX=0, F_REG=0, FS_PD=0 Turn on frequency synthesizer MAIN: RXTX=1, F_REG=1, FS_PD=0 RX or TX? RX TX Turn on bias generator. MAIN: BIAS_PD=0 Wait 150 us CC1020 www.ti.com SWRS046H – NOVEMBER 2006 – REVISED MARCH 2015 Figure 5-28. Sequence for Activating RX or TX Mode 5.15 On-Off Keying (OOK) The data modulator can also provide OOK (On-Off Keying) modulation. OOK is an ASK (Amplitude Shift Keying) modulation using 100% modulation depth. OOK modulation is enabled in RX and in TX by setting TXDEV_M[3:0] = 0000 in the DEVIATION register. An OOK eye diagram is shown in Figure 5-29. The data demodulator can also perform OOK demodulation. The demodulation is done by comparing the signal level with the “carrier sense” level (programmed as CS_LEVEL in the VGA4 register). The signal is then decimated and filtered in the data filter. Data decision and bit synchronization are as for FSK reception. Copyright © 2006–2015, Texas Instruments Incorporated Detailed Description 53 Submit Documentation Feedback Product Folder Links: CC1020 |
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