SNC21500A Datasheet, PDF (1/12 Pages) SONiX Technology Company – 1-CH H.Q. Speech Controller

SNC21500A
1-CH H.Q. Speech Controller
===================== CONTENTS =====================
1. INTRODUCTION........................................................................................................... 3
2. FEATURES ..................................................................................................................... 3
3. PIN ASSIGNMENT........................................................................................................ 4
4. BLOCK DIAGRAM ....................................................................................................... 4
5. FUNCTION DESCRIPTIONS ...................................................................................... 5
5.1 OSCILLATOR .............................................................................................................. 5
5.2 ROM ......................................................................................................................... 5
5.3 RAM ......................................................................................................................... 5
5.4 POWER DOWN MODE ................................................................................................. 5
5.5 SAMPLING RATE COUNTER ........................................................................................ 5
5.6 AUTO REPEAT FUNCTION........................................................................................... 5
5.7 I/O PORTS .................................................................................................................. 5
5.8 IR FUNCTION ............................................................................................................. 6
5.9 PWM IO CONTROL .................................................................................................... 6
5.10 WATCH DOG TIMER................................................................................................... 6
5.11 PUSH-PULL DAC & CURRENT DA OUTPUT............................................................... 7
5.12 EVENT MARK............................................................................................................. 8
6. ABSOLUTE MAXIMUM RATING ............................................................................. 9
7. ELECTRICAL CHARACTERISTICS ........................................................................ 9
8. APPLICATION CIRCUIT .......................................................................................... 10
8.1 GENERAL APPLICATION ............................................................................................ 10
8.2 MOTOR APPLICATION ............................................................................................... 11
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November 6, 2009