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| A high quality, single-chip record/playback device for short duration messaging applications. The device includes an on-chip oscillator, microphone preamplifier, AGC, anti-aliasing filter, smoothing filter, and speaker amplifier. A minimum system can be configured with a microphone, a speaker, a few passive components, two push-button switches and a power source. |
| Recordings are stored in non-volatile memory cells requiring no power. This unique solution is made |
| possible through new technology whereby voice and audio signals are stored directly, in their natural analogue form, into an EEPROM memory. Such direct analogue storage allows natural voice reproduction in a single IC. The device is supplied in a 28-pin DIL package. |
| Supply current: |
30mA max., operating |
| Output load impedance: |
16 min. |
| Output power: |
12· 2mW into 16 |
| Mic. input level: |
20mV pk-pk |
| Mic. input impedance: |
10k |
| AGC output impedance: |
5k |
| Sampling frequency: |
6· 4kHz max. |
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