SNC26060P One Channel Speech Controller ===================== CONTENTS ===================== 1. INTRODUCTION............................................................................................................3 2. FEATURES ......................................................................................................................3 3. PIN ASSIGNMENT.........................................................................................................4 4. BLOCK DIAGRAM ........................................................................................................4 5. FUNCTION DESCRIPTIONS .......................................................................................5 5.1 5.2 OSCILLATOR ...............................................................................................................5 ROM ..........................................................................................................................5 5.3 5.4 RAM ..........................................................................................................................5 POWER DOWN MODE ..................................................................................................5 5.5 5.6 5.7 5.8 SAMPLING RATE COUNTER .........................................................................................5 I/O PORTS ...................................................................................................................6 PWM OUTPUT ............................................................................................................6 WATCH DOG TIMER ....................................................................................................6 5.9 5.10 IR FUNCTION ..............................................................................................................7 PWM IO CONTROL .....................................................................................................7 6. ABSOLUTE MAXIMUM RATING ..............................................................................7 7. ELECTRICAL CHARACTERISTICS .........................................................................8 8. APPLICATION CIRCUIT .............................................................................................9 8.1 I/F OF PROGRAMMING MODE .......................................................................................9 8.1.1. Serial Program I/F.............................................................................................9 8.1.2. Parallel Program I/F .........................................................................................9 8.2 GENERAL APPLICATION .............................................................................................10 8.3 Ver: 1.3 MOTOR APPLICATION ................................................................................................11 1 October 14, 2009 SNC26060P One Channel Speech Controller AMENDENT HISTORY Version Date Description Ver 1.0 February 23, 2009 First issue Ver 1.1 July 6, 2009 Modify Application circuit battery suggestion (from 3 pcs AA battery to 2 pcs AA battery) Ver 1.2 July 24, 2009 Revise system clock with 2.05MHz (typical). Ver 1.3 October 14, 2009 1. Revise PWM output spec condition with BUOx=1/2 VDD (peak value), instead of 1KHz sine wave Ver: 1.3 2 October 14, 2009 SNC26060P One Channel Speech Controller 1. INTRODUCTION SNC26060P is a one-channel voice synthesizer One Time Program 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 SNC26060P, 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 – 3.6V 60 seconds voice capacity are provided (@6KHZ sample rate) Built in a 4-bit tiny controller I/O Port − One 4-bit Input port P1is provided. − Two 4-bit I/O ports P2 and P3 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) (64+16)*4 bits RAM are provided. (Notes : m0~m63 + 16 PWMIO duty registers) Maximum 64k program ROM is provided 128K*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: 1.3 3 October 14, 2009 SNC26060P One Channel Speech Controller 3. PIN ASSIGNMENT Symbol P10~P13 P20~P23 P30~P33 Rosc BUO1 I/O I I/O I/O I O Function Description Input port 1 I/O port 2: IO I/O port 3: IO Oscillation component connection pin BUO2 O RST I PWM output 2 RST=1 Reset Chip (Active H) CVDD I Positive power supply for CPU CGND I Negative power supply for CPU VDDIO GNDIO Test VPP0 VPP1 VPP2 I I I I I I Positive power supply for I/O Negative power supply for I/O Test pin OTP Programming Voltage OTP Programming Voltage OTP Programming Voltage PWM output 1 4. Block Diagram ROM Program/Speech 128K×12 bits Address Pointers/ STACK SRAM (64+16 nibbles) Timer ALU Timing Generator OSC Sampling Rate Counter Watch Dog Timer Voice Synthesizer PWM Circuit PWM IO Input port 1 Ver: 1.3 IO port 2 4 IO port 3 October 14, 2009 SNC26060P One Channel Speech Controller 5. FUNCTION DESCRIPTIONS 5.1 Oscillator SNC26060P accepts RC type oscillator for system clock. The typical circuit diagram for oscillator is listed as follows. VCC r OSC RC Oscillator 5.2 ROM SNC26060P contains a substantial 128K words (12-bit) internal ROM, which is shared by program and resource data. Program, voice and data are shared within this same 128K words ROM. 5.3 RAM SNC26060P contains (64+16) nibble RAM <(64+16) x 4-bits>. The 64 nibble RAM is only one page. Another 16 nibbles are 16 PWMIO duty registers. In our programming structure, user can Directly use memory related command, M0 ~ M63 in the data transfer type instructions, to access first 64 nibbles. Another 16 nibbles, user can use PWMxL, PWMxH related command to access when PWMIO function is disabled. (x can be 1~8) 5.4 Power Down Mode “End” instruction makes the IC entering into Stop Mode will stop the system clock for power savings (<3uA @VDD=3V and <6uA @VDD=4.5V.) Any valid data transition (LH or HL) occurring on any IO pin can be used to start the system clock and return to normal operating mode. 5.5 Sampling Rate Counter The unique sampling rate counter is designed in voice channel to be able to play diverse voices at different sample playing rates. The playing rate can be adaptively set up among from the wide ranges of 2.5KHz to 20KHz. This architecture yields a high-quality voice synthesis that sounds very close to its original source when played through the same amplifier and speaker circuitry. Ver: 1.3 5 October 14, 2009 SNC26060P One Channel Speech Controller 5.6 I/O Ports There are one 4-bit input port P1 and two 4-bit I/O ports P2 and P3. Any I/O can be individually programmed as either input pull low or output. Any valid data transition (HL | LH) of P1,P2 and P3 can reactivate the chip when it is in power-down stage. Port Data PAD Port Status Weak To Internal Data Bus Read Control I/O Port Configuration Note: (1) Weak N-MOS can serve as pull-low resistor. (2) The driving/sink current of P2 & P3 is up to 8mA/16mA 5.7 PWM Output An PWM circuit is built-in SNC26060P. The maximum resolution of PWM is 8 bits. Two huge output stage circuits are designed in SNC26060P. With this advanced circuit, the chip is capable of driving speaker directly without external transistors. BUO1 BUO2 PWM Output 5.8 Watch Dog Timer SNC26060P built an internal WDT (Watch Dog Timer). This Watchdog timer would issue resets signal to this chip if it is not cleared before reaching terminal count (128 ms). The watchdog timer is enabled at reset and cannot be disabled. Ver: 1.3 6 October 14, 2009 SNC26060P One Channel Speech Controller 5.9 IR Function P23 can be modulated with 38.5KHz square wave before sent out to P23 pin. The IR signal can be achieved by this modulated signal. 5.10 PWM IO control SNC26060P has support 8 PWM IO (P20~P23, P30~P33). Each I/O has 8 bit independent duty register, and the 8 bit register are compare with 8 bits counter. If set use PWM IO function and internal counter start at 000H, the mapping I/O will set High. The 8 bits counter increment if the same duty register, that will reset the mapping IO pin. 6. ABSOLUTE MAXIMUM RATING Items Supply Voltage Input Voltage Operating Temperature Storage Temperature Ver: 1.3 Symbol VDD-V VIN TOP TSTG Min -0.3 VSS-0.3 0 -55.0 7 Max 6.0 VDD+0.3 55.0 125.0 Unit. V V o C o C October 14, 2009 SNC26060P One Channel Speech Controller 7. ELECTRICAL CHARACTERISTICS Item Operating Voltage Sym. Min. Typ. Max. Unit VDD 2.4 3.3 3.6 V Condition OTP Programming Voltage Program Mode Voltage (OTP) VPP 7.25 7.5 7.75 V In Normal Mode Vpp can be floating. Standby Current* ISBY 0.5 5 Operating Current* IOPR - 5 Ii - 3 IOD - IOS PWM current Oscillation Freq. Input Current of P1.0~P1.3, 10 uA VDD=3.0V, no load mA VDD=3.0V, no load - uA VDD=3V 8 - mA VDD=3V,VO=2.4V - 16 - mA VDD=3V,VO=0.4V IPWM - 240 - mA VDD=3V, BUOx=1.5V FOSC 1.98 2.05 2.12 P2.0~P2.3, P3.0~P3.3 Drive Current of P2.0~P2.3, P3.0~P3.3 Sink Current of P2.0~P2.3, P3.0~P3.3 MHz VDD=3V @ Rosc=220K Min : -3% Max : +3% Low Voltage detect Level 2.0 V * Notes : Include SNC26060 Core IC + OTP Ver: 1.3 8 October 14, 2009 SNC26060P One Channel Speech Controller 8. APPLICATION Circuit 8.1 I/F of Programming mode 8.1.1. Serial Program I/F. SONiX OTP Writer If user would like to program BIN file into OTP by SONIX OTP Writer V1.0 with serial programming way. There are total 9 pins programming pins are necessary. However, VPP should connect to VPP0/VPP1/VPP2, VDD should connect to CVDD/VDDIO and GND should connect to CGND/GNDIO on user’s PCB. 8.1.2. Parallel Program I/F SONiX OTP Writer If user would like to program BIN file into OTP by SONIX OTP Writer V1.0 with parallel programming way. There are total 16 pins programming pins are necessary. However, VPP should connect to VPP0/VPP1/VPP2, VDD should connect to CVDD/VDDIO and GND should connect to CGND/GNDIO on user’s PCB. Ver: 1.3 9 October 14, 2009 SNC26060P One Channel Speech Controller 8.2 General application + IO1 IO2 IO3 IO4 IO5 Battery Box It is suggested to add a capacitor (C1), 104, between VDD with GND to keep power stable with general application. And this capacitor is strongly suggested to be as close to the chip as possible. Ver: 1.3 10 October 14, 2009 SNC26060P One Channel Speech Controller 8.3 Motor application Separate CPU power path with power path of large current application + 8050 IO1 IO2 Battery Box 8050 IO3 IO4 IO5 Separate CPU GND with large current application GND There are some suggestions about PCB layout when user use SNC26060P IC with motor applications. (1) The capacitor C1 (104) C2 (104)is strongly suggested to be as close to the chip as possible. (2) It had better let OSC components (R) get close to IC chip. (3) OSC components had better get far away large current applications. (4) Separate IC power path with large current application power path to avoid affect IC working by power drop from large current application. (5) R2 (10Ω)separate VDDIO and CVDD. (6) Let power cable thicker, especially for large current application. (7) C3 and C4 (104) are connected at the positive point and negative point of the motor. Ver: 1.3 11 October 14, 2009 SNC26060P One Channel Speech Controller DISCLAIMER The information appearing in SONiX web pages (“this publication”) is believed to be accurate. However, this publication could contain technical inaccuracies or typographical errors. The reader should not assume that this publication is error-free or that it will be suitable for any particular purpose. SONiX makes no warranty, express, statutory implied or by description in this publication or other documents which are referenced by or linked to this publication. In no event shall SONiX be liable for any special, incidental, indirect or consequential damages of any kind, or any damages whatsoever, including, without limitation, those resulting from loss of use, data or profits, whether or not advised of the possibility of damage, and on any theory of liability, arising out of or in connection with the use or performance of this publication or other documents which are referenced by or linked to this publication. This publication was developed for products offered in Taiwan. SONiX may not offer the products discussed in this document in other countries. Information is subject to change without notice. Please contact SONiX or its local representative for information on offerings available. Integrated circuits sold by SONiX are covered by the warranty and patent indemnification provisions stipulated in the terms of sale only. The application circuits illustrated in this document are for reference purposes only. SONIX DISCLAIMS ALL WARRANTIES, INCLUDING THE WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PURPOSE. SONIX reserves the right to halt production or alter the specifications and prices, and discontinue marketing the Products listed at any time without notice. Accordingly, the reader is cautioned to verify that the data sheets and other information in this publication are current before placing orders. Products described herein are intended for use in normal commercial applications. Applications involving unusual environmental or reliability requirements, e.g. military equipment or medical life support equipment, are specifically not recommended without additional processing by SONIX for such application. Ver: 1.3 12 October 14, 2009