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PDF W523x Data sheet ( Hoja de datos )
| Número de pieza | W523x | |
| Descripción | Power Speech LOW VOLTAGE ADPCM VOICE SYNTHESIZER | |
| Fabricantes | Winbond | |
| Logotipo |  |
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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
Second
3 Sec
6 Sec
9 Sec
Note: All of the playback lengths are estimated by typical applications.
W5234
12 Sec
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
Publication Release Date: March 1996
- 1 - Revision A2
1 page  
TYPICAL APPLICATION CIRCUIT
W523X
VDD
Speaker
8 ohm
1/4 watt
8050D
TG1 1
TG2
TG3
TG4/LED2/STPC
2
3
4
LED1 5
R STPB
6
STPA
NC
7
8
Cs Rs
SPK
VSS
9
10
W523X
20 TEST
19 NC
18 NC
17 NC
16 NC
15 NC
14 NC
13 OSCO
12 OSCI Rosc
11 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!
Publication Release Date: March 1996
- 5 - Revision A2
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet W523x.PDF ] | |
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