W523X Power Speech LOW VOLTAGE ADPCM VOICE SYNTHESIZER GENERAL DESCRIPTION The W523X is a programmable speech synthesis IC that utilizes the ADPCM coding method to generate all types of voice effects. The W523X's LOAD and JUMP commands and four programmable registers provide powerful user-programmable functions that make this chip suitable for an extremely wide range of speech IC applications. The W523X family includes the W5231, W5232, W5233, and W5234. The ROM size of each of these products is shown below: BODY W5231 W5232 W5233 W5234 Second 3 Sec 6 Sec 9 Sec 12 Sec Note: All of the playback lengths are estimated by typical applications. FEATURES • Wide operating voltage range: 1.2 to 3.6 volts • Programmable speech synthesizer • 4-bit ADPCM synthesis method and 8-bit D/A converter • RC oscillator with built-in capacitor; voice output frequency typically at 6 KHz • Provides 4 trigger inputs • Drives 2 flash LEDs for two batteries • 3 STOP output signals • Flexible functions programmable through the following: − − − − − LD (load), JP (jump) commands Four registers: R0, EN, STOP, and MODE Conditional instructions Speech equation Global repeat (GR) setting • Programmable power-on initialization (POI), which can be interrupted by trigger inputs • Interrupt or non-interrupt for rising or falling edge of each trigger pin (this feature determines retriggerable, non-retriggerable, overwrite, and non-overwrite features of each trigger pin) • LED On/Off control can be set independently in each GO instruction of speech equation • Independent control of LED1 and LED2 • Total of 256 voice group entries available for programming (including eight hardware and 248 software group entry points) • 20 to 40 mS debounce time -1- Publication Release Date: March 1996 Revision A2 W523X • Provides the following mask options: − LED flash frequency: 3 Hz/6 Hz/Off − LED flash type: synchronous/alternate − LED1 section-controlled: Yes/No − LED2 section-controlled/STPC-controlled − AUD output current: 1 mA for one battery, 3 mA for two batteries • Packaged in 20-pin DIP PIN CONFIGURATION TG1 1 20 TEST TG2 2 19 NC TG3 3 18 NC TG4/LED2/STPC 4 17 NC LED1 5 16 NC STPB 6 15 NC STPA 7 14 NC NC 8 13 OSCO SPK 9 12 OSCI VSS 10 11 VDD -2- W523X PIN DESCRIPTION PIN NO. PIN NAME I/O FUNCTION 1 TG1 I Trigger Input 1 2 TG2 I Trigger Input 2 3 TG3 I Trigger Input 3 4 TG4/LED2/STPC I/O Trigger Input 4 or LED 2 or Stop Signal C 5 LED1 O LED 1 6 STPB O Stop Signal B 7 STPA O Stop Signal A 8 NC - Not Connected 9 SPK O Current Output for Speaker 10 VSS - Negative Power Supply 11 VDD - Positive Power Supply 12 OSCI I Oscillator Input Connect Resistor 13 OSCO O Oscillator Output Connect Resistor 14 NC - Not Connected 15 NC - Not Connected 16 NC - Not Connected 17 NC - Not Connected 18 NC - Not Connected 19 NC - Not Connected 20 TEST I Test Pin ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Power Supply VDD−VSS Input Voltage VIN CONDITIONS All Inputs RATED VALUE UNIT -0.3 to +5.0 V VSS -0.3 to VDD +0.3 V Storage Temp. TSTG -55 to +150 °C Operating Temp. TOPR 0 to +70 °C Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device. -3- Publication Release Date: March 1996 Revision A2 W523X ELECTRICAL CHARACTERISTICS (TA = 25° C, VSS = 0 V) PARAMETER Operating Voltage Input Voltage SYMBOL CONDITIONS VDD For One or Two Batteries VIL All Input Pins VIH Standby Current LIMITS UNIT MIN. TYP. MAX. 1.2 2.4 3.6 V VSS -0.3 - 0.3 VDD V 0.7 VDD - VDD - - 0.5 IDD1 VDD = 3 V, No Playing IDD2 VDD = 1.5 V, No Playing - - 0.3 IOP1 VDD = 3 V, No Load - - 400 IOP2 VDD = 1.5 V, No Load - - 250 Input Current For IlN1 VDD = 3 V, VIN = 0 V - - 5 TG1−TG4 Operating Current IIN2 VDD = 1.5 V, VIN = 0 V SPK (D/A Option1 IO1 Full scale) Option2 - - 2.5 VDD = 1.5 V, RL = 200 Ω -0.8 -1.0 -1.2 IO2 VDD = 3 V, RL = 200 Ω -2.0 -3.0 -4.0 lOL1 VDD = 3V, VOUT = 0.4V 1 - - Output Current of IOL2 VDD = 1.5V, VOUT = 0.4V 1 - - SPTC IOH1 VDD = 3 V, VOUT = 2.7 V -0.5 - - lOH2 VDD = 1.5 V, VOUT = 1.2 V -0.3 - - VDD = 3 V, VOUT = 1 V 6 - - IOL1 VDD = 3 V, VOUT = 0.4 V 1 3 - STPA lOL2 VDD = 1.5 V, VOUT = 0.4 V 1 2 - STPB lOH1 VDD = 3 V, VOUT = 2.7 V -1 -3 - IOH2 LED Output Current IO µA µA µA mA mA mA VDD = 1.5 V, VOUT = 1.2 V -0.3 - - FOSC1 VDD = 3 V, ROSC = Typ. 320 384 460 FOSC2 VDD = 1.5 V, ROSC = Typ. 320 384 460 Oscillation Freq. Deviation by Voltage Drop ∆FOSC F(1.5 V) − F(1.2 V) 0 10 20 % FOSC F(1.5 V) Oscillation Freq. Deviation by Voltage Drop ∆FOSC F(1.8 V) − F(1.5 V) 0 4 7.5 % FOSC F(1.8 V) Oscillation Freq. Deviation by Voltage Drop ∆FOSC F(3.0 V) − F(2.4 V) 0 4 7.5 % FOSC F(3.0 V) TDEB FOSC = 384 KHz 20 30 40 mS Oscillation Freq. Input Debounce Time Note: ROSC = Typ.= 100 KΩ for one battery; 110 KΩ for two batteries. -4- KHz W523X TYPICAL APPLICATION CIRCUIT VDD TG1 TG2 TG3 TG4/LED2/STPC LED1 STPB R Speaker 8 ohm 1/4 watt STPA NC SPK 8050D VSS Cs Rs 1 20 TEST 2 19 NC 3 18 NC 17 NC 16 NC 6 15 NC 7 14 NC 8 13 OSCO 9 12 OSCI 10 11 4 5 W523X Rosc VDD Notes: 1. In principle, the playing speed determined by ROSC should correspond to the sampling rate during the coding phase. The playing speed may be adjusted by varying ROSC, however. 2. Rs is an optional current-dividing resistor. If Rs is added, the resistance should be between 470 and 750 Ω. 3. R is used to limit the current on the LED. 4. Cs is optional. 5. The DC current gain β of transistor 8050 ranges from 120 to 200. 6. All unused trigger pins can be left open because of their internal pull-high resistance. 7. No warranty for production! -5- Publication Release Date: March 1996 Revision A2 W523X Headquarters Winbond Electronics (H.K.) Ltd. No. 4, Creation Rd. III, Science-Based Industrial Park, Hsinchu, Taiwan TEL: 886-3-5770066 FAX: 886-3-5792697 http://www.winbond.com.tw/ Voice & Fax-on-demand: 886-2-7197006 Rm. 803, World Trade Square, Tower II, 123 Hoi Bun Rd., Kwun Tong, Kowloon, Hong Kong TEL: 852-27516023 FAX: 852-27552064 Taipei Office 11F, No. 115, Sec. 3, Min-Sheng East Rd., Taipei, Taiwan TEL: 886-2-7190505 FAX: 886-2-7197502 Note: All data and specifications are subject to change without notice. -6- Winbond Electronics North America Corp. Winbond Memory Lab. Winbond Microelectronics Corp. Winbond Systems Lab. 2730 Orchard Parkway, San Jose, CA 95134, U.S.A. TEL: 1-408-9436666 FAX: 1-408-9436668