SNC82340
12-Channel MIDI/Speech Controller
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 SNC82340. 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)
3
…
1023
Recommended application circuits are illustrated below.
VCC
VO
1K
Single Speaker Application
8
Ver: 1.6
Sep.8, 2006
SONIX [ SONIX TECHNOLOGY COMPANY ]
