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I1806X Folha de dados(PDF) 9 Page - Winbond |
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I1806X Folha de dados(HTML) 9 Page - Winbond |
9 / 26 page I1800 SERIES 7. FUNCTIONAL DESCRIPTION 7.1. DETAILED DESCRIPTION Speech/Sound Quality Winbond’s patented ChipCorder® technology provides natural record and playback. The input voice signals are stored directly in nonvolatile cells and are reproduced without the synthetic effect often heard with digital solid-state speech solutions. A complete sample is stored in a single cell, minimizing the memory necessary to store a single message. Duration The I1800 devices offer single-chip solutions with 6 to 16 seconds of record/playback duration capacity. Sampling rate and duration are determined by an external resistor connected to the ROSC pin. These specifications apply with the required resistor value for playback duration. Sample Rate Duration 8 KHz 6.4 KHz 5.3 KHz 4 HKz I1806 6 secs 7.5 secs 9 secs 12 secs I1810 8 secs 10 secs 12 secs 16 secs ROSC 80 KΩ 100 KΩ 120 KΩ 160 KΩ Non-Volatile Storage The I1800 product utilizes the on-chip Flash memory providing zero-power message storage. The message is retained for up to 100 years without power. In addition, the device can be re-recorded typically over 10,000 times. Basic Operation The I1800 ChipCorder® device is controlled by the REC pin, and either of two playback pins, PLAYE (edge-activated playback), and PLAYL (level-activated playback). The I1800 parts are configured for design simplicity in a single-message application. Device operation is explained in section 7.2, “Functional Description Example”. Automatic Power-Down Mode At the end of a playback or record cycle, the I1800 device automatically returns to a low-power standby mode, consuming typically 0.5µA, provided that Play REC, XCLK, and FT pins are LOW (see DC parameters, section 10). During a playback cycle, the device powers down automatically at the end of the message. During a record cycle, the device powers down immediately after REC is released LOW. Publication Release Date: May 2003 - 9 - Revision 0.0 |
Nº de peça semelhante - I1806X |
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Descrição semelhante - I1806X |
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