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CC2500-RTR1 数据表(PDF) 17 Page - Texas Instruments |
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CC2500-RTR1 数据表(HTML) 17 Page - Texas Instruments |
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17 / 84 page  CC2500 PRELIMINARY Data Sheet (Rev.1.2) SWRS040A Page 17 of 83 Component Value Manufacturer C51 100 nF ±10%, 0402 X5R Murata GRM15 series C81 27 pF ±5%, 0402 NP0 Murata GRM15 series C101 27 pF ±5%, 0402 NP0 Murata GRM15 series C121 100 pF ±5%, 0402 NP0 Murata GRM15 series C122 1.0 pF ±0.25 pF, 0402 NP0 Murata GRM15 series C123 1.8 pF ±0.25 pF, 0402 NP0 Murata GRM15 series C124 1.5 pF ±0.25 pF, 0402 NP0 Murata GRM15 series C131 100 pF ±5%, 0402 NP0 Murata GRM15 series C132 1.0 pF ±0.25 pF, 0402 NP0 Murata GRM15 series L121 1.2 nH ±0.3 nH, 0402 monolithic Murata LQG15 series L122 1.2 nH ±0.3 nH, 0402 monolithic Murata LQG15 series L131 1.2 nH ±0.3 nH, 0402 monolithic Murata LQG15 series R171 56 kΩ ±1%, 0402 Koa RK73 series XTAL 26.0 MHz surface mount crystal NDK, AT-41CD2 Table 15: Bill Of Materials for the application circuit In the CC2500EM reference design shown in Figure 4, LQG15 series inductors from Murata have been used. Measurements have been performed with multi-layer inductors from other manufacturers (e.g. Würth) and the measurement results were the same as when using the Murata part. The Gerber files for the CC2500EM reference design are available from the TI and Chipcon websites. Figure 4: CC2500EM reference design 8 Configuration Overview CC2500 can be configured to achieve optimum performance for many different applications. Configuration is done using the SPI interface. The following key parameters can be programmed: • Power-down / power up mode • Crystal oscillator power-up / power-down • Receive / transmit mode • RF channel selection • Data rate • Modulation format • RX channel filter bandwidth • RF output power • Data buffering with separate 64-byte receive and transmit FIFOs • Packet radio hardware support • Forward Error Correction with interleaving • Data Whitening • Wake-On-Radio (WOR) Details of each configuration register can be found in Section 31, starting on page 51. Figure 5 shows a simplified state diagram that explains the main CC2500 states, together with typical usage and current consumption. For detailed information on controlling the CC2500 state machine, and a complete state diagram, see Section 19, starting on page 35. |
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