20 Seconds Voice Record – Playback

This project is a message recording board capable of recording 10 to 20 secs  depending on audio quality.

Description

This project has been designed around Winbond’s ISD1616 IC (SMD) IC, which is fully integrated, single-chip, single message voice record and playback device ideally suited to a variety of electronics systems, Message duration is user selectable in ranges from 10 to 20 Seconds depending on the sampling rates from 4 KHz to 12 KHz adjustable via preset, giving the users greater flexibility in duration versus recording quality.

Applications:Toys, Amusement Equipment’s, Interactive Games, Lifts/Escalators, Warning Systems, Security Systems, Audio Guide, Home Appliances, Robotics, Animatronics, Light and Sound Show .

Specifications:

• Power supply input 5 VDC @ 100 mA
• Power supply spans a range from 2.4 to 5.5 VDC
• Standby current 1 uA typical and 10 uA maximum without power LED
• Enters standby mode immediately after record playback cycle
• Microphone preamplifier with automatic gain control built in IC
• PWM Class D speaker driver
• Speaker 8 Ohms
• Onboard microphone
• Easy operation via onboard tact switches
• Onboard tact switches for Level trigger Play, Edge trigger Play, and Recording
• Onboard power indication
• Onboard preset for sampling rates settings
• Onboard recording indication
• Supply input and speaker terminal via berg connector
• Low Noise high quality voice record/playback
• 100 Year massage retention
• 100,000 record cycles
• Speaker is not provided with kit

Schematic

Parts List

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