Datenblatt-Suchmaschine für elektronische Bauteile |
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HT98R068-1 Datenblatt(PDF) 73 Page - Holtek Semiconductor Inc |
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HT98R068-1 Datenblatt(HTML) 73 Page - Holtek Semiconductor Inc |
73 / 116 page Rev. 1.10 7� �e���a�� 1�� �01� Rev. 1.10 7� �e���a�� 1�� �01� HT98R068-1 Two Way Radio 8-Bit MCU HT98R068-1 Two Way Radio 8-Bit MCU detector will remain active if the LVDEN bit is high. After enabling the Low Voltage Detector, a time delay tLVDS should be allowed for the circuitry to stabilise before reading the LVDO bit. Note also that as the VDD voltage may rise and fall rather slowly, at the voltage nears that of VLVD, there may be multiple bit LVDO transitions. VD D V LV D LV DE N LV DO t LV DS LVD Operation Audio Processor The device includes an audio processor function for processing of signals received on the RF carrier. Aimed specifically at low cost radio communication products the audio processor section contains all the transmitter and receiver functions required to process the necessary in-band audio signals such as compression, expansion, scrambling and de-scrambling. Audio Receiver The following diagram shows the main functional blocks of the receiver audio processor. Audio Filters De-Emphasis Expander De-Scrambler LPF-270 P�og�ammed/Use� Defined CTCSS Decode� HPF-300 P�og�ammed/Use� Defined ��-�it DCS Decode� DTMF Decoders Selective Call Decoders A�dio_ o�t De-m�x De-m�x In Band Decode�s Tone Sq�elch Decode�s Receive ��nctions Audio Filters De-Emphasis Expander De-Scrambler LPF-270 P�og�ammed/Use� Defined CTCSS Decode� HPF-300 P�og�ammed/Use� Defined ��-�it DCS Decode� DTMF Decoders Selective Call Decoders A�dio_ o�t De-m�x De-m�x In Band Decode�s Tone Sq�elch Decode�s Receive ��nctions Receiver Block Diagram |
Ähnliche Teilenummer - HT98R068-1_13 |
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Ähnliche Beschreibung - HT98R068-1_13 |
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