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CC1021-RTR1 Datasheet(PDF) 19 Page - Texas Instruments |
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CC1021-RTR1 Datasheet(HTML) 19 Page - Texas Instruments |
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19 / 92 page  CC1021 SWRS045 Page 19 of 91 1 PCLK PDI PDO DGND DGND DCLK DIO DVDD 2 3 4 6 5 7 8 CC1021 24 VC AVDD AVDD RF_OUT RF_IN AVDD R_BIAS AVDD 23 22 21 19 20 18 17 C5 C4 XTAL LC Filter Monopole antenna (50 Ohm) L2 C3 AVDD=3V L1 C1 R1 AVDD=3V AVDD=3V DVDD=3V DVDD=3V AVDD=3V C7 R3 C8 C6 R2 AVDD=3V T/R Switch C60 R10 1 PCLK PDI PDO DGND DGND DCLK DIO DVDD 2 3 4 6 5 7 8 CC1021 24 VC AVDD AVDD RF_OUT RF_IN AVDD R_BIAS AVDD 23 22 21 19 20 18 17 C5 C5 C4 C4 XTAL XTAL LC Filter LC Filter Monopole antenna (50 Ohm) L2 C3 AVDD=3V L1 C1 R1 AVDD=3V AVDD=3V DVDD=3V DVDD=3V AVDD=3V C7 R3 C8 C6 R2 AVDD=3V T/R Switch C60 R10 Figure 3. Typical application and test circuit (power supply decoupling not shown) Item 433 MHz 868 MHz 915 MHz C1 10 pF, 5%, NP0, 0402 47 pF, 5%, NP0, 0402 47 pF, 5%, NP0, 0402 C3 5.6 pF, 5%, NP0, 0402 10 pF, 5%, NP0, 0402 10 pF, 5%, NP0, 0402 C4 22 pF, 5%, NP0, 0402 22 pF, 5%, NP0, 0402 22 pF, 5%, NP0, 0402 C5 12 pF, 5%, NP0, 0402 12 pF, 5%, NP0, 0402 12 pF, 5%, NP0, 0402 C6 3.9 nF, 10%, X7R, 0603 3.9 nF, 10%, X7R, 0603 3.9 nF, 10%, X7R, 0603 C7 120 pF, 10%, X7R, 0402 120 pF, 10%, X7R, 0402 120 pF, 10%, X7R, 0402 C8 33 pF, 10%, X7R, 0402 33 pF, 10%, X7R, 0402 33 pF, 10%, X7R, 0402 C60 220 pF, 5%, NP0, 0402 220 pF, 5%, NP0, 0402 220 pF, 5%, NP0, 0402 L1 33 nH, 5%, 0402 82 nH, 5%, 0402 82 nH, 5%, 0402 L2 22 nH, 5%, 0402 3.6 nH, 5%, 0402 3.6 nH, 5%, 0402 R1 82 kΩ, 1%, 0402 82 kΩ, 1%, 0402 82 kΩ, 1%, 0402 R2 12 kΩ, 5%, 0402 12 kΩ, 5%, 0402 12 kΩ, 5%, 0402 R3 39 kΩ, 5%, 0402 39 kΩ, 5%, 0402 39 kΩ, 5%, 0402 R10 82 Ω, 5%, 0402 82 Ω, 5%, 0402 82 Ω, 5%, 0402 XTAL 14.7456 MHz crystal, 16 pF load 14.7456 MHz crystal, 16 pF load 14.7456 MHz crystal, 16 pF load Note: Items shaded vary for different frequencies. Table 13. Bill of materials for the application circuit in Figure 3. The PLL loop filter is optimized for 38.4 kBaud data rate. Note: The PLL loop filter component values in Table 13 (R2, R3, C6-C8) are optimized for 38.4 kBaud data rate. The SmartRF Studio software provides component values for other data rates using the equations on page 50. In the CC1020EMX reference design, which is also applicable for CC1021, LQG15HS series inductors from Murata have been used. The switch is SW-456 from M/A-COM. |
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