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CC1150-RTY1 Datasheet(PDF) 46 Page - Texas Instruments |
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CC1150-RTY1 Datasheet(HTML) 46 Page - Texas Instruments |
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46 / 67 page  DEVIATION _ E xosc dev 17 f f (8 DEVIATION _ M) 2 2 = ´ + ´ CHANSPC _ E xosc channel 18 f f (256 CHANSPC _ M) 2 CHAN 2 D = ´ + ´ ´ CC1150 SWRS037B – JANUARY 2006 – REVISED MARCH 2015 www.ti.com Table 5-30. 0x14: MDMCFG0 – Modulator Configuration BIT FIELD TYPE RESET DESCRIPTION 7:0 CHANSPC_M[7:0] R/W 0xF8 8-bit mantissa of channel spacing (initial 1 assumed). The channel spacing is multiplied by the channel number CHAN and added to the base frequency. It is unsigned and has the format: (8) The default values give 199.951 kHz channel spacing (the closest setting to 200 kHz), assuming 26.0 MHz crystal frequency. Table 5-31. 0x15: DEVIATN – Modulator Deviation Setting BIT FIELD TYPE RESET DESCRIPTION 7 R0 Not Used. 6:4 DEVIATION_E[2:0] R/W 0x4 Deviation exponent. 3 R0 Not Used. 2:0 DEVIATION_M[2:0] R/W 0x7 When MSK modulation is enabled: Specifies the fraction of symbol period (1/8-8/8) during which a phase change occurs (‘0’: +90deg, ‘1’: –90deg). Refer to the SmartRF Studio [11] software for correct DEVIATN setting when using MSK. When 2-FSK/GFSK modulation is enabled: Deviation mantissa, interpreted as a 4-bit value with MSB implicit 1. The resulting frequency deviation is given by Equation 9: (9) The default values give ±47.607 kHz deviation, assuming 26.0 MHz crystal frequency. When ASK/OOK modulation is enabled: This setting has no effect. Table 5-32. 0x17: MCSM1 – Main Radio Control State Machine Configuration BIT FIELD TYPE RESET DESCRIPTION 7:6 R0 Not Used. 5:2 Reserved R0 0x0C Defined on the transceiver version (CC1101). 1:0 TXOFF_MODE[1:0] R/W 0x0 Select what should happen when a packet has been sent (TX): The binary number is the setting and the result is the next state after finishing packet transmission. 00 = IDLE 01 = FSTXON 10 = Stay in TX (start sending preamble) 11 = Do not use, not implemented on CC1150 46 Detailed Description Copyright © 2006–2015, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: CC1150 |
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