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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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ISD5108SYI Fiches technique(PDF) 9 Page - Nuvoton Technology Corporation |
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ISD5108SYI Fiches technique(HTML) 9 Page - Nuvoton Technology Corporation |
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9 / 90 page  ISD5100 SERIES Publication Release Date: Oct 31, 2008 - 9 - Revision 1.42 6. FUNCTIONAL DESCRIPTION 6.1. OVERVIEW 6.1.1 Speech/Voice Quality The ISD5100 ChipCorder Series can be configured via software to operate at 4.0, 5.3, 6.4 or 8.0 kHz sampling frequency to select appropriate voice quality. Increasing the duration decreases the sampling frequency and bandwidth, which affects audio quality. The table in the following section shows the relationship between sampling frequency, duration and filter pass band. 6.1.2 Duration To meet system requirements, the ISD5100 Series are single-chip solution, which provide 1 to 16 minutes of voice record and playback, depending upon the sample rates chosen. Duration [1] Sample Rate (kHz) ISD5116 ISD5108 ISD5104 ISD5102 Typical Filter Knee (kHz) 8.0 8 min 44 sec 4 min 22 sec 2 min 11 sec 1 min 5 sec 3.4 6.4 10 min 55 sec 5 min 27 sec 2 min 43 sec 1 min 21 sec 2.7 5.3 13 min 6 sec 6 min 33 sec 3 min 17 sec 1 min 38 sec 2.3 4.0 17 min 28 sec 8 min 44 sec 4 min 22 sec 2 min 11 sec 1.7 [1] Minus any pages selected for digital storage 6.1.3 Flash Technology One of the benefits of Nuvoton’s ChipCorder technology is the use of on-chip Flash memory, which provides zero-power message storage. The message is retained for up to 100 years (typically) without power. In addition, the device can be re-recorded over 10,000 times (typically) for the digital data and over 100,000 times (typically) for the analog messages. A new feature has been added that allows memory space in the ISD5100 Series to be allocated to either digital or analog storage when recorded. The fact that a section has been assigned digital or analog data is stored in the Message Address Table by the system microcontroller when the recording is made. 6.1.4 Microcontroller Interface The ISD5100 Series are controlled through an I 2C 2-wire interface. This synchronous serial port allows commands, configurations, address data, and digital data to be loaded into the device, while allowing status, digital data and current address information to be read back from the device. In addition to the serial interface, two other status pins can feedback to the microcontroller for enhanced |
Numéro de pièce similaire - ISD5108SYI |
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Description similaire - ISD5108SYI |
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