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CC2400-RTR1 数据表(PDF) 18 Page - Texas Instruments |
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CC2400-RTR1 数据表(HTML) 18 Page - Texas Instruments |
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18 / 84 page ![]() CC2400 SWRS042A Page 18 of 83 Ref Description C71 Front-end bias decoupling and match, see page 50 C61 Discrete balun and match, see page 50 C81 Discrete balun and match, see page 50 C62 DC block to antenna and match C421 16MHz crystal load capacitor, see page 49 C431 16MHz crystal load capacitor, see page 49 L61 DC bias and match, see page 50 L62 DC bias and match, see page 50 L71 RF blocking inductor, see page 50 L81 Discrete balun and match, see page 50 R451 Precision resistor for current reference generator XTAL 16MHz crystal, see page 49 Table 10. Overview and description of external components for an unbalanced antenna (balun implemented with low cost discrete components) 1 VCO_GUARD AVDD_VCO AVDD_PRE AVDD_RF1 RF_P TXRX_SWITCH RF_N GND 2 3 4 6 5 7 8 CC2400 36 NC GIO6 SO SI CSn DCLK/FIFO DIO/PKT SCLK 35 34 33 31 32 30 29 GND AVDD_SW NC NC 10 11 12 9 RX DVDD1.8 DVDD3.3 TX 27 28 26 25 SPI-bus DVDD=1.8V Optional digital interface DVDD=1.8V DVDD Digital I/O =1.8 / 3.3V Antenna (50 Ohm) AVDD=1.8V R451 C431 C421 XTAL C62 C61 C71 L61 L62 C81 L81 AVDD=1.8V AVDD=1.8V AVDD=1.8V L71 Figure 3 Typical application circuit with discrete balun for interfacing single-ended antenna |
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