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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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UPD77533 датащи(PDF) 32 Page - Renesas Technology Corp |
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UPD77533 датащи(HTML) 32 Page - Renesas Technology Corp |
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32 / 104 page  Data Sheet S15671EJ4V0DS 30 µµµµPD77533 When: DIFr = × − G 57542 . 1 024 . 1 2 024 . 1 2 1 024 . 1 384 . 16 2 × × × × − + × × × REFCLKi REFCLKi GPSCLKr M REFCLKr DIFi = × − G 57542 . 1 024 . 1 2 024 . 1 2 024 . 1 384 . 16 2 × × × × − × × × REFCLKi REFCLKi GPSCLKr M REFCLKi REFCLKi: Logical value of REFCLK REFCLKr: Actual value of REFCLK (including error) GPSCLKr: Actual value of GPSCLK (including error) <Example> REFCLKi: 14.4 MHz REFCLKr: 14.400002 MHz GPSCLKr: 16.383900 MHz DIFr = × − G 57542 . 1 024 . 1 2 4 . 14 024 . 1 2 4 . 14 1 383900 . 16 024 . 1 384 . 16 2 400002 . 14 × × × × − + × × × M M M M M = −9882.7 DIFi = × − G 57542 . 1 024 . 1 2 4 . 14 024 . 1 2 4 . 14 383900 . 16 024 . 1 384 . 16 2 4 . 14 × × × × − × × × M M M M M = −9615.6 Therefore: Doppler Search Range = 2× −9882.7 − −9615.6 = 534.2 (Hz) For details, see 16.20 Doppler Search Range. 6.2 Baud Rate Setting The Baud Rate Change command (CMD-ID: 0x01) is used to set the baud rate between the µPD77533 and the host CPU. There are seven settable baud rates: 2400 bps, 4800 bps, 9600 bps (initial value), 19200 bps, 38400 bps, 57600 bps, and 115200 bps. If the µPD77533 receives the Baud Rate Change command (CMD-ID: 0x01) while another command is being received, the baud rate will be set after reception of that command is complete. |
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