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ATA5425 Datasheet(PDF) 9 Page - ATMEL Corporation |
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ATA5425 Datasheet(HTML) 9 Page - ATMEL Corporation |
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9 / 100 page  9 4841C–WIRE–05/06 ATA5423/25/28/29 2.3 Typical Remote Control Unit Application, 2 Li Batteries (6V) Figure 2-3 shows a typical 433.92 MHz 2 Li battery Remote Control Unit application. The exter- nal components are 11 capacitors, 1 resistor, 2 inductors and a crystal. C 1 and C4 are 68 nF voltage supply blocking capacitors. C 2 and C3 are 2.2 µF supply blocking capacitors for the inter- nal voltage regulators. C 5 is a 10 nF supply blocking capacitor. C6 is a 15 nF fixed capacitor used for the internal quasi-peak detector and for the high-pass frequency of the data filter. C 7 to C 11 are RF matching capacitors in the range of 1 pF to 33 pF. L1 is a matching inductor of about 5.6 nH to 56 nH. L 2 is a feed inductor of about 120 nH. A load capacitor for the crystal of 9 pF is integrated. R 1 is typically 22 kΩ and sets the output power to about 5.5 dBm. Figure 2-3. Typical Remote Control Unit Application, 433.92 MHz, 2 Li Batteries (6V) VSINT N_RESET XTAL2 CLK DEM_OUT IRQ RSSI CDEM CS SCK SDI_TMDI SDO_TMDO RF_IN NC NC R_PWR RF_OUT 433_N868 PWR_H NC NC NC NC NC NC AVCC Loop antenna ATA5423/ATA5425/ ATA5428/ATA5429 Litihum- Cell C1 C2 C9 C8 C10 C5 C11 C6 C3 + L1 L2 C4 R1 13.25311 MHz C7 Litihum- Cell + VCC VSS ATmega 44/88/168 Sensor |
Similar Part No. - ATA5425 |
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Similar Description - ATA5425 |
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