SNC26020
One Channel Speech Controller
===================== CONTENTS =====================
1.
2.
3.
4.
5.
INTRODUCTION............................................................................................................3
FEATURES ......................................................................................................................3
PIN ASSIGNMENT.........................................................................................................4
BLOCK DIAGRAM ........................................................................................................4
FUNCTION DESCRIPTIONS .......................................................................................5
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
5.10
6.
7.
8.
O
SCILLATOR
...............................................................................................................5
ROM ..........................................................................................................................5
RAM ..........................................................................................................................6
P
OWER
D
OWN
M
ODE
..................................................................................................6
S
AMPLING
R
ATE
C
OUNTER
.........................................................................................6
I/O P
ORTS
...................................................................................................................6
PWM O
UTPUT
............................................................................................................7
W
ATCH
D
OG
T
IMER
....................................................................................................7
IR F
UNCTION
..............................................................................................................7
PWM IO
CONTROL
.....................................................................................................7
ABSOLUTE MAXIMUM RATING ..............................................................................7
ELECTRICAL CHARACTERISTICS .........................................................................8
APPLICATION CIRCUIT .............................................................................................9
8.1
8.2
G
ENERAL APPLICATION
...............................................................................................9
M
OTOR APPLICATION
................................................................................................10
Ver: 1.7
1
October 14, 2009