SNC202
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
5.2. ROM ............................................................................................................ 4
5.3. RAM............................................................................................................. 4
5.4. POWER DOWN MODE...................................................................................... 4
5.5. SAMPLING RATE COUNTERS............................................................................ 4
5.6. EVENT MARK ................................................................................................. 5
5.7. I/O PORTS..................................................................................................... 5
5.8. DAC & PWM ................................................................................................ 6
6.
7.
8.
ABSOLUTE MAXIMUM RATING.................................................................... 8
ELECTRICAL CHARACTERISTICS............................................................... 8
APPLICATION CIRCUIT................................................................................. 9
DISCLAIMER........................................................................................................ 11
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Ver: 1.1
June 8, 2005