SNC82268

12-Channel MIDI/Speech Controller

Ver: 1.6

Sep. 8, 2006

8

5.8.

Auto Repetition

Each voice channel of 12 is equipped with a hardware auto repeat function. Auto

repeat functions are normally used to implement sustain in instrument synthesis but

can even be used to repeat any voice data of arbitrary length.

5.9.

Voice Synthesizer

The Major function of Voice Synthesizer is to fetch Wave data from ROM and

synthesize into voice. Each voice channel of 12 is equipped with an individual volume

setting.

5.10. DAC

One 10-bit current type digital-to-analog converters are built-in SNC82268. The

relationship between input digital data and output analog current signal is listed in

the following table.

Input data

Typical value of output current (mA)

0

0

1

3/1023

…

N

n*(3/1023)

…

1023

3

Recommended application circuits are illustrated below.

VO

VCC

1K

Single Speaker Application