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MC14LC5447 Datasheet(PDF) 8 Page - Motorola, Inc |
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MC14LC5447 Datasheet(HTML) 8 Page - Motorola, Inc |
8 / 12 page MC14LC5447 MOTOROLA 8 APPLICATION CIRCUIT RT 6 NC 5 RDI1 3 RI 2 TI 1 RDI2 4 PWRUP 7 12 RDO 13 CDO 14 DOR 15 DOC 11 CLKSIN 10 OSCin 9 OSCout MC14LC5447 3.579 MHz 30 pF 10 M Ω VDD TO PC TO PC 16 8 0.1 µF MC145407 VDD TIP RING 1N4004x4 500 pF 500 pF C4 C3 C1 C2 10 k Ω 10 k Ω 470 k Ω 18 k Ω 15 k Ω 270 k Ω 4.7 M Ω PROTECTION NETWORK 30 pF 0.2 µF +5 V +5 V 0.33 µF NOTE: C1 and C2 ≥ 0.2 µF required for line isolation. C1 through C4 are 250 V min, non–polarized. Figure 7. Partial Implementation of PC Interface to Tip and Ring Timing Diagram for Figure 7 DOC DATA NOTES: 1. Wired ‘OR’ RDO with CDO. 2. Overlap of RDO edge with CDO edge to ensure part stays in PWRUP determined by RC time constant on RDO, PWRUP, and CDO pin. 3. Part reverts to PWR ON, on rising edge of RDO since there is no CDO. NOTE 1 CDO 3.58 MHz, 3.6864, OR 455 kHz PWRUP RDO RT DOR SECOND RING 0.5 SEC 2 SECONDS RI OSC DATA DATA NOTE 1 NOTE 2 2 SECONDS FIRST RING 0.5 SEC 0101 1 NOTE 3 AR CH IVE D B Y F RE ES CA LE SE MI CO ND UC TO R, INC . |
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