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參數(shù)資料
| 型號： | ISD1420SY |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 音頻合成 |
| 英文描述： | 20 SEC, SPEECH SYNTHESIZER WITH RCDG, PDSO28 |
| 封裝： | 0.300 INCH, LEAD FREE, PLASTIC, SOIC-28 |
| 文件頁數(shù)： | 19/33頁 |
| 文件大?。?/td> | 318K |
| 代理商： | ISD1420SY |
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ISD1400 SERIES
- 26 -
Applications Note
Some users may experience an unexpected recording taking place when their circuit is powered up,
or the batteries are changed and VCC rises faster than REC . This undesired recording prevents
playback of the previously recorded message. A spurious End Of Message (EOM) marker appears at
the very beginning of the memory, preventing access to the original message, and nothing is played.
To prevent this occurrence, place a capacitor (approx. 0.001 F) between the control pin ( REC ) and
VCC. This pulls the control pin voltage up with VCC as it rises. Once the voltage is HIGH, the pull-up
device will keep the pin HIGH until intentionally pulled LOW, preventing the false EOM marker.
Since this anomaly depends on factors such as the capacitance of the user’s printed circuit board, not
all circuit designs will exhibit the spurious marker. However, it is recommended that the capacitor is
included for design reliability. A more detailed explanation and resolution of this occurrence is
described in Application Information.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISD1420XC5006 | 20 SEC, SPEECH SYNTHESIZER WITH RCDG, UUC25 |
| ISD33150ED | 157.1 SEC, SPEECH SYNTHESIZER WITH RCDG, PDSO28 |
| ISD33150EI | 162 SEC, SPEECH SYNTHESIZER WITH RCDG, PDSO28 |
| ISD33150E | 155.6 SEC, SPEECH SYNTHESIZER WITH RCDG, PDSO28 |
| ISD33150PD | 157.1 SEC, SPEECH SYNTHESIZER WITH RCDG, PDIP28 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISD1420SYR | 功能描述:IC MEM VOICE REC/PLAY 20S 28SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 語音錄制和重放 系列:ISD1400 標準包裝:14 系列:- 接口:串行 濾波器通頻帶:1.7kHz 持續(xù)時間:8 ~ 32 秒 安裝類型:通孔 封裝/外殼:28-DIP（0.300"，7.62mm） 供應商設(shè)備封裝:28-PDIP 其它名稱:90-21300+000 |
| ISD1420X | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single-Chip Voice Record/Playback Devices 16-and 20-Second Durations |
| ISD1420XI | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single-Chip Voice Record/Playback Devices 16-and 20-Second Durations |
| ISD1447AS1 | 制造商:ISAHAYA 制造商全稱:Isahaya Electronics Corporation 功能描述:FOR LOW FREQUENCY POWOR AMPLIFY APPLICATION SILICON NPN EPITAXIAL TYPE |
| ISD14B20 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:SINGLE-CHIP, MULTIPLE-MESSAGE VOICE RECORD/PLAYBACK DEVICE 10.6- TO 32-SECONDS DURATION |
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