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SNC520 Datasheet One Channel Direct Drive Speech Controller

Manufacturer: SONiX

Overview: SNC520 One Channel Direct Drive Speech Controller 1 INTRODUCTION SNC520 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 SNC520, user’s varied applications including voice section bination, key trigger arrangement, output control, and other logic functions can be easily implemented.

General Description

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) I Oscillator Input O Positive Output of PWM or DA output O Negative Output of PWM Ver: 1.0 2 November 26, 2002 SNC520 One Channel Direct Drive Speech Controller 5 FUNCTION DESCRIPTIONS 5.1.

Oscillator SNC520 accept RC type oscillator for system clock.

The typical circuit diagram for oscillator is listed as follow.

Key Features

  • Single power supply 2.4V.
  • 5.5V 10 seconds voice capacity are provided(@6KHZ sample rate) Built in a 4-bit tiny controller Two 4-bit I/O ports are provided 64.
  • 4 bits RAM are provided 32K.
  • 10 ROM size are provided for voice data and program Maximum 16k program ROM is provided IR carrier signal is provided Built in a high quality speech synthesizer Adaptive playing speed from 2.5k-20kHz is provided One voice channel Built in a PWM Direct Drive circuit and a fixed current D/A output.

SNC520 Distributor