ISD 1700 series voice chips (ISD 1700, ISD 1720 P/S, 1760P, ISD 1730P/S, isd1760p. Embedded), and can customize the sound effect of information operation instructions. The chip includes automatic gain control, microphone preamplifier, speaker driving circuit, oscillator and memory.
First, the characteristics:
It can be recorded and played 100000 times, and the stored contents can be saved without power supply100 years.
Two control modes, two recording input modes and two playback output modes.
Can process up to 255 messages.
There are various working status prompts.
Multiple sampling frequencies correspond to multiple recording and playback times.
Good sound quality, wide voltage range, flexible application, low price and good quality.
Second, the electrical characteristics:
Working voltage: 2.4V-5.5V, and the maximum voltage cannot exceed 6V.
Static current: 0.5- 1 μA A.
Working current: 20mA
Details /cpsj/ISD 1730.htm
Voice chip, alarm chip, support ISD3340, ISD 1700 programming copier.
Technical consultation telephone number: 010-621485 Pei Xifeng 1350 1 1074.