No | Part number | Description ( Function ) | Manufacturers | |
4 | ISD1820 | 8-20 seconds recording IC ISD1820 8-20 秒录音 IC 一、 管脚排列图: 1 2 3 4 5 6 7 DIP14 单列 12PINCOB 14 VSS 13 RECLED 12 FT 11 VCC 10 ROSC 9 SP+ 8 VSSA VSS ROSC SP+ SPAGC MICREF MIC PLAYL PLAYE REC RECLED FT VCC REC PLAYE PLAYL MIC MICREF AGC SP- 二、 ROSC 80KΩ 100KΩ 120KΩ 160KΩ 200KΩ 芯片引脚图: 录放时间 8秒 10 秒 12 秒 16 秒 20 秒 采样频率 8.0KHz 6.4KH |
AMBITION |
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3 | ISD1820 | Voice Record Module ISD1820 Voice Record Module is base on ISD1820, which a multiple-message record/playback device. It can offers true single-chip voice recording, no-volatile storage, and playback capability for 8 to 20 seconds. The sample is 3.2k and the total 20s for the Recorder. This module use is very easy which you could direct control by push button on board or by Microcontroller such as |
ETC |
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2 | ISD1820 | 8-20 seconds voice recording single-stage circuit 语音芯片—中青世纪 http://www.atvoc.com 8-20 秒单段语音录放电路-ISD1820 美国ISD公司于 2001 年最新推出一种单片 8~20 秒单段语音录放电路ISD1810,它的基本结构与 ISD1110、1420完全相同,采用CMOS技术,内含振荡器,话筒前置放大,自动增益控制,防混淆滤波器, 扬声器驱动及FLASH阵列。 一、 |
Atvoc |
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1 | ISD1820P | 8 to 20 seconds of voice circuits single segment 深圳佰芯微电子,语音芯片专家,www.bxwic.com,TEL:0755-83015310,FAX:0755-83015370 ISD1820P 8~20 秒单段语音电路 一、 主要特性 1. 2. 3. 4. 自动节电,维持电流 0.5uA 边沿/电平触发放音 外接电阻调整录音时间(详见附表) 3v 单电源工作 REC PLAYE PLAYL IC MICREF AGC SP1 2 3 4 5 6 7 14 VSSD 13 RECLED 12 FT 11 VCC 1 |
Bai core |
List of most widely used semiconductors
Part Number | Function | Manufacturers | |
1N4007 | The 1N4007 is a rectification diode that is designed for high-voltage applications, typically up to 1000V. It has a maximum current rating of 1A and a forward voltage drop of around 0.7V. |
Vishay |
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LM317 | This is a popular adjustable voltage regulator. |
ON Semiconductor |
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6N137 | LM393 | 2N3906 | 2N2222 | TIP120 | 1N5818 | LM324N | A1015 | SMAJ20CA |