SNC26120
One Channel Speech Controller
1. INTRODUCTION
SNC26120 is a one-channel voice synthesizer IC with PWM direct drive circuit. It built
in a 4-bit tiny controller with one 4-bit input port and two 4-bit I/O ports. By
programming through the tiny controller in SNC26120, 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
120 seconds voice capacity are provided (@6KHZ sample rate)
Built in a 4-bit tiny controller
I/O Port
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One 4-bit Input port P1is provided.
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Two 4-bit I/O ports P2 and P3 are provided.
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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
248K*12 shared ROM for voice data and program
Readable ROM code data
Voice Synthesizer:
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Single channel speech output.
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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 ]
