SNC26040
One Channel Speech Controller
1. INTRODUCTION
SNC26040 is a one-channel voice synthesizer IC with PWM direct drive circuit. It built
in a 4-bit tiny controller with two 4-bit I/O ports. By programming through the tiny
controller in SNC26040, user’s varied applications including voice section
combination, key trigger arrangement, output control, and other logic functions can be
easily implemented.
2. FEATURES
Single power supply 2.4V – 5.5V
40 seconds voice capacity are provided (@6KHZ sample rate)
Built in a 4-bit tiny controller
I/O Port
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Two 4-bit I/O ports P2 and P3 are provided.
−
The driving/sink current of P2 & P3 is up to 8mA/16mA
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The IO pins P2.3 can be modulated with 38.5Khz carry signal to implement IR
function.
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PWM output for IO (P2.0~P2.3, P3.0~P3.3)
(64+16)*4 bits RAM are provided.
(Notes
: m0~m63 + 16 PWMIO duty registers)
Maximum 64K program ROM is provided
84K*12 shared ROM for voice data and program
Readable ROM code data
Voice Synthesizer:
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Single channel speech output.
−
Support 4-bits SONiX-ASDPCM and 8-bit PCM algorithm
Adaptive playing speed from 2.5k-20kHz is provided
Built in an PWM circuit output, can directly connected to Speaker for sound
output.
System clock: 2MHz
Event Mark function supported
Low Power Detect.
Watch Dog Timer Supported
Ver: 1.7
3
October 14, 2009
SONIX [ SONIX TECHNOLOGY COMPANY ]
