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ML7020 Datasheet(PDF) 12 Page - OKI electronic componets |
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ML7020 Datasheet(HTML) 12 Page - OKI electronic componets |
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12 / 19 page ![]() FEDL7020-02 1Semiconductor ML7020 12/19 AC Characteristics (Call Progress Tone Section) (V DD = 4.5 to 5.5 V, Ta = –40 to +85°C) Parameter Symbol Condition Min. Typ. Max. Unit Transmit level V CPT Pin TO –21.5 –20.0 –18.5 dBm During 400 Hz output 380 400 420 Hz Transmit frequency f CPT Pin TO During 800 Hz output 780 800 820 Hz Distortion rate THD CPT Pin TO — — –23 dB Detection level V DETCP 400 Hz, level of LI1O and LI2O –46 — –6 dBm Non-detection level V REJCP 400 Hz, level of LI1O and LI2O — — –60 dBm Detection frequency f DETCP — 360 — 440 Hz 510 — — Hz Non-detection frequency f rejCP — — — 300 Hz t DETCP Detection 30 — — ms Detection persistence period t REJCP See Figure 4. Non-detection — — 10 ms Detection delay time t DELCP 10 17 30 ms Detection hold time t HOLCP 10 17 30 ms CPT input t REJCP t DETCP DETB t DELCP t HOLCP Figure 4 Call progress tone detection timing |
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