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SC9102D Datasheet(PDF) 6 Page - Silan Microelectronics Joint-stock |
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SC9102D Datasheet(HTML) 6 Page - Silan Microelectronics Joint-stock |
6 / 16 page Silan Semiconductors SC9102C/D HANGZHOU SILAN MICROELECTRONICS CO.,LTD. Rev: 2.0 2001-11-02 6 (continued) Pin No. Pin Name Description 13 XMUTE *Mute output pins. *NMOS open drain output structure. *The output is in “LOW” state during dialing sequence (both Pulse and Tone mode) otherwise this pin is “high-impedance”. *Long (continue) Mute. 11 VSS *Negative power supply pin. 10 VDD *Positive power supply pin. 5 HKS *Hook switch input pin. *When the handset is in ON-HOOK state, this pin must be pulled “high” in order to disable the dialing operation and decrease the power consumption. *When in OFF-HOOK state, the HKS pin must be pulled “low” state for all function operation. 14 PO *Pulse output signal pin. *NMOS open drain output structure. *The output is “LOW” during pulse dialing and Flash operation, otherwise this output is “floating”. 12 TONE *Dual Tone Multi-frequency output pin. *In TONE mode, when an entry of digit key (include *, # key), this pin will send out a corresponding DTMF signal. *The TONE pin provides minimum tone duration and minimum intertone pause time to support rapid key-in. If key-in time is less than 100ms, DTMF signal will last for 100ms; otherwise the tone duration will last as long as the key is pressed. MODE Dialing mode VDD Pulse mode Open Pulse mode 7MODE *Mode selection pin. *Three-state input structure. *This pin can select the three modes shown on the right. VSS Tone mode 6 M/B *M/B ration selection pin. (The function seeing the Dialing signal option table) |
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