SNC26500 Datasheet, PDF (3/11 Pages) SONiX Technology Company – One Channel Speech Controller

SNC26500
One Channel Speech Controller
1. INTRODUCTION
SNC26500 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 five 4-bit I/O ports. By
programming through the tiny controller in SNC26500, 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
500 seconds voice capacity are provided (@6KHZ sample rate)
Built in a 4-bit tiny controller
I/O Port
− One 4-bit Input port P1 is provided.
− Five 4-bit I/O ports P2, P3, P4, P5 and P6 are provided.
− The driving/sink current of P2 & P3 is up to 8mA/16mA
− The IO pins P2.3 can be modulated with 38.5Khz carry signal to implement IR
function.
− PWM output for IO (P2.0~P2.3, P3.0~P3.3)
128*4 bits RAM are provided
Maximum 64k program ROM is provided
1024K*12 shared ROM for voice data and program
Readable ROM code data
Voice Synthesizer:
− 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: 1.8
3
October 14, 2009