ISD1810 Single-Chip, Single-Message Voice Record/Playback Device 8- to 16-Second Durations Advance Information.
ISD1806B是一颗支持4-10秒的录放音语音芯片,支持4-8K的声音采样率,通过振荡电阻来进行秒数的调节,振荡电阻脚位为ROSC Pin,以实现用户的功能所需...
下面是振荡电阻所对应的录放秒数和时间列表
|
采样率
|
8 kHz
|
6.4 kHz
|
5.3 kHz
|
4 kHz
|
|
ROSC
|
80K
|
100K
|
120K
|
160K
|
|
时长
|
4.7 secs
|
6.0 secs
|
7.5 secs
|
9.4 secs
|
产品优势：
1, ISD录放音IC有掉电保存功能,在更改电池后,声音还是保存在芯片内部．
2, 工作电压2.4V—5.5V；输出方式：PWM＆DAC . 环-芯
3, 简单易用的录放功能,仅支持单段录放音操作.
4, 成熟的市场产品,在录放音领域占有绝大部分的市场份额.
5, 100年的信息保存时间,华邦Winbond品牌.
Information Storage Devices’ ISD1810 ChipCorder®provides high-quality, single-chip, single-message,record/playback solution with user-selectable durations of 8 to 16 seconds. The CMOS devices include an on-chip oscillator (with external control),microphone preamplifier, automatic gain control,anti-aliasing filter, multilevel storage array,smoothing filter, and speaker amplifier. A minimum record/playback subsystem can be configured with a microphone, a speaker, several passive components, two push-buttons, and apower source.
FEATURES • Easy-to-use single-chip, single-message voice record/playback solution • High-quality, natural voice/audio reproduction • Push-button interface – Playback can be edge- or levelactivated • Variable record/playback duration controlled by external resistor selection which sets sample rate. 8 KHz sample rate = 8 seconds 6.4 KHz sample rate = 10 seconds 5.3 KHz sample rate = 12 seconds 4.0 KHz sample rate = 16 seconds • Automatic power-down mode – Enters standby mode immediately following a record or playback cycle – 0.5 µA standby current (typical) • On-chip 8 speaker driver • Zero-power message storage – Eliminates battery backup circuits • 100-year message retention (typical) • 10,000 record cycles (typical) • On-chip oscillator • No algorithm development required • Single +3 volt power supply • Available in die form and 28-pin 600 mil DIP (for sampling only)
