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SNC542

SONiX
Part Number SNC542
Manufacturer SONiX
Description Two Channel Direct Drive Speech Controller
Published May 28, 2005
Detailed Description SNC542 Two Channel Direct Drive Speech Controller 1 INTRODUCTION SNC542 is a two-channel voice synthesizer IC with PWM d...
Datasheet PDF File SNC542 PDF File

SNC542
SNC542

Overview
SNC542 Two Channel Direct Drive Speech Controller 1 INTRODUCTION SNC542 is a two-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 SNC542, 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 16 seconds voice capacity are provided(@6KHZ sample rate) Built in a 4-bit tiny controller One 4-bit input port and two 4-bit I/O ports are provided 128*4 bits RAM are provided 52K*10 ROM size are provided for voice data and program Maximum 16k program ROM is provided Readable ROM code data IR carrier signal is provided Built in a high quality speech synthesizer Adaptive playing speed from 2.
5k-20kHz is provided Two independent voice channels (Channel 1 + Channel 2→Buo1,Buo2) Built in a PWM Direct Drive circuit and a fixed current D/A output System clock : 2MHz Low Power Reset Ver: 1.
2 1 November 26, 2002 3 Block Diagram SNC542 Two Channel Direct Drive Speech Controller ROM Program/Speech 52K×10 bits Address Pointers/ STACK Timing Generator OSC SRAM (128 nibbles) Sampling Rate Counter × 2 PWM Timer ALU Voice Synthesizer D/A IO1 IO2 IO3 4 PIN ASSIGNMENT Symbol P13 ~ P10 P23 ~ P20 P33 ~ P30 VDD GND RST OSC BUO1/VO BUO2 I/O Function Description I Bit3 ~ Bit0 of Input port 1 I/O Bit3 ~ Bit0 of I/O port 2 I/O Bit3 ~ Bit0 of I/O port 3 P Positive power supply P Negative power supply I Reset pin (active high) O Oscillator / Crystal Out O Positive Output of PWM or DA output O Negative Output of PWM Ver: 1.
2 2 November 26, 2002 SNC542 Two Channel Direct Drive Speech Controller 5 FUNCTION DESCRIPTIONS 5.
1.
Oscillator SNC542 accept RC type oscillator for system clock.
The typical circuit diagram for oscillator is listed as follow.
OSC VCC r RC Oscillator 5.
2.
ROM SNC542 con...


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