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| MC145106 |
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MOTOROLA |
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6 page
MC145106 MOTOROLA 6 Figure 4. VHF Marine Transceiver Synthesizer LOCK DETECT VDD GND 0.2425 – 0.3825 (0.4850 – 0.7650) *0.3800 TRANSMIT RANGE 156.025 – 157.425 MHz *157.4 RECEIVER L.O. RANGE 145.575 – 152.575 MHz *151.3 MODULATION 5.12 MHz (10.24 MHz) VCO AND BUFFER LOOP FILTER 14.29 (28.58) SIMPLEX 14.75# (29.50) DUPLEX RECEIVE TRANSMIT 15.36 (30.72) RECEIVE OFFSET OSCILLATOR ÷ 10 (÷ 5) MIXER TRIPLER BUFFER FILTER PROGRAMMABLE INPUTS N = 97 TO 153 *152 ÷ N 29 – 1 2.5 kHz (5.0 kHz) MC145106 PHASE DETECTOR 29, 210 DIVIDER ÷ 2 REF OSC TRANSMIT MODULATION CIRCUIT NOTES: • Receiver IF = 10.7 MHz. • Low Side Injection. • Duplex Offset = 4.6 MHz. • Step Size = 25 kHz. • Frequencies in MHz unless noted. • Values in parentheses are for a 5.0 kHz reference frequency. • Example frequencies for Channel 28 shown by *. #Can be eliminated by adding 184 to ÷ N for Duplex Channels. |
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