SNC201
Direct Drive Speech Controller
================= CONTENTS ================
1.
2.
3.
4.
5.
INTRODUCTION........................................................................................................2
FEATURES ..................................................................................................................2
BLOCK DIAGRAM....................................................................................................3
PIN ASSIGNMENT.....................................................................................................3
FUNCTION DESCRIPTIONS ...................................................................................4
5.1.
OSCILLATOR ...............................................................................................................4
ROM ..........................................................................................................................4
RAM ..........................................................................................................................4
POWER DOWN MODE..................................................................................................4
SAMPLING RATE COUNTERS .......................................................................................4
EVENT MARK..............................................................................................................5
I/O PORTS...................................................................................................................5
DAC & PWM ............................................................................................................6
5.2.
5.3.
5.4.
5.5.
5.6.
5.7.
5.8.
6.
7.
8.
ABSOLUTE MAXIMUM RATING ..........................................................................8
ELECTRICAL CHARACTERISTICS .....................................................................8
APPLICATION CIRCUIT .........................................................................................9
DISCLAIMER.....................................................................................................................11
1
Ver: 1.1
June 8, 2005