The Microchip Technology MT8967AS1 is a Telecom IC featuring PCM CODEC functionality. It operates with a supply voltage of 4.75V to 5.25V and has an 8-bit resolution.
The Microchip Technology MT8962AS1 is a PCM CODEC Telecom IC. It operates within a 4.75V to 5.25V range and has an operating temperature of 0°C to 70°C.