SNC745 Datasheet (SONiX) - 16-bit Voice Processor

SNC745, 16-bit Voice Processor

I/O port 0 Input port 1 Positive power supply for core circuit Positive power supply Negative power supply PWM output 1 PWM output 2 DA output High speed clock crystal input / RC-type oscillator input High speed clock crystal output / RC-type oscillator input Low speed clock crystal input Low speed

SNC745 16-bit Voice Processor 1.

INTRODUCTION SNC745 is a 64mins two-channel speech/melody and 4-channel wave-table melody voice chip.

It based on reduced 16-bit fixed-point DSP architecture.

SNC745 provides user some necessary and efficient DSP instructions.

Furthermore, SNC745 provide one 10-bit PWM and one 10-bit DA converter to driving speaker for speech/melody output.

User can select PWM or DA by programming DA/PWM control register, and only one function can be active at the same time.

SNC745 Features

* w w w w w Power supply: 2.4V ~ 3.6V (for 2 battery application) 3.6V ~ 5.1V (for 3 battery application) Built-in a 16-bit DSP (Very Light Structure) Software-based voice/melody processing Rich Function Instruction Set System Clock

* 16MHz crystal or R-C type oscillator for system clock