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SNC15020 Dataheets PDF



Part Number SNC15020
Manufacturers SONiX Technology Company
Logo SONiX Technology Company
Description One Channel Speech Controller
Datasheet SNC15020 DatasheetSNC15020 Datasheet (PDF)

One Channel Speech Controller SNC15020 ===================== CONTENTS ===================== 1. 2. 3. 4. 5. INTRODUCTION...3 FEATURES ...3 PIN ASSIGNMENT3 BLOCK DIAGRAM .

  SNC15020   SNC15020


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One Channel Speech Controller SNC15020 ===================== CONTENTS ===================== 1. 2. 3. 4. 5. INTRODUCTION............................................................................................................3 FEATURES ......................................................................................................................3 PIN ASSIGNMENT.........................................................................................................3 BLOCK DIAGRAM ........................................................................................................4 FUNCTION DESCRIPTIONS .......................................................................................4 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 6. 7. www.DataSheet4U.com OSCILLATOR ...............................................................................................................4 ROM ..........................................................................................................................4 RAM ..........................................................................................................................5 POWER DOWN MODE ..................................................................................................5 SAMPLING RATE COUNTER .........................................................................................5 I/O PORTS ...................................................................................................................5 PWM OUTPUT ............................................................................................................6 WATCH DOG TIMER ....................................................................................................6 IR FUNCTION ..............................................................................................................6 ABSOLUTE MAXIMUM RATING ..............................................................................6 ELECTRICAL CHARACTERISTICS .........................................................................7 APPLICATION CIRCUIT .............................................................................................8 GENERAL APPLICATION ...............................................................................................8 MOTOR APPLICATION ..................................................................................................9 8. 8.1 8.2 Ver: 1.5 1 October 30, 2008 One Channel Speech Controller SNC15020 AMENDENT HISTORY Version Ver 1.0 Ver 1.1 Ver 1.2 Ver 1.3 Ver 1.4 Ver1.5 Date Oct 30, 2007 May 28, 2008 June 10, 2008 June 23, 2008 August 25 2008 October 30,2008 First issue Update Application Circuit Refine Application Circuit Refine Application Circuit Refine Application Circuit Refine Application Circuit Description www.DataSheet4U.com Ver: 1.5 2 October 30, 2008 One Channel Speech Controller SNC15020 1. INTRODUCTION SNC15020 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 SNC15020, 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 20 seconds voice capacity are provided (@6KHZ sample rate) Built in a 4-bit tiny controller I/O Port − Two 4-bit I/O ports P2 and P5 are provided. − The driving/sink current of P2 & P5 is up to 8mA/16mA − The IO pins P2.3 can be modulated with 38.5Khz carry signal to implement IR function. 64*4 bits RAM are provided Maximum 44k program ROM is provided 44K*12 shared ROM for voice data and program Readable ROM code data Built in one channel speech synthesizer 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 www.DataSheet4U.comEvent Mark function supported Low Power Detect. Watch Dog Timer Supported 3. PIN ASSIGNMENT Symbol P20~P23 P50~P53 Rosc BUO1 BUO2 RST VDDIO GNDIO CVDD CGND Test Ver: 1.5 I/O I/O I/O I O O I I I I I I Function Description I/O port 2: IO I/O port 5: IO Oscillation component connection pin PWM output 1 PWM output 2 RST=1 Reset Chip (Active H) Positive power supply for I/O Negative power supply for I/O Positive power supply for internal core Negative power supply for internal core Test pin 3 October 30, 2008 One Channel Speech Controller SNC15020 4. Block Diagram ROM Program/Speech 44K×12 bits Address Pointers/ STACK SRAM (64 nibbles) Timer ALU IO port 2 Timing Generator OSC Sampling Rate Counter Watch Dog Timer PWM Circuit Voice Synthesizer IO port 5 5. FUNCTION DESCRIPTIONS 5.1 Oscillator SNC15020 accepts RC type oscillator for system clock. The typical circuit diagram for oscillator is listed as follows. www.DataSheet4U.com VCC OSC RC Oscillator 5.2 ROM SNC15020 contains a substantial 44K.


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