VOICE RECORDING & REPRODUCING LSI

KS5911 is a CMOS LSI for voice (sound) recording & reproducing LSI using the ADM (Adaptive Delta Modulation) algorithm.
KS5911 can be used in two kinds of modes, that is, manual mode and auto mode, according to the way of recording reproducing.
It Can be used 4K or 256K DRAM, up to 4 pcs.
In the manual mode, using a 4-input pin, a maximum of 16 sound phrases cal be performed and the start/stop input is activated by an external key.
In the auto mode, the input voice signal is automatically recorded and recording stops with silence detection. The recorded voice signal is reproduced automatically.
KS5911 can be used with 4 kinds of (8K, 11K, 16K, 32K BPS).