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YM2149 from N/A

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YM2149

Manufacturer: N/A

SOFT CONTROLLED SOUND GENERATOR

Partnumber Manufacturer Quantity Availability
YM2149 N/A 886 In Stock

Description and Introduction

SOFT CONTROLLED SOUND GENERATOR The YM2149 is a sound generator chip manufactured by Yamaha. Below are the factual details about the part:

### **Specifications:**
- **Type:** Programmable Sound Generator (PSG)  
- **Channels:** 3 (three independent tone generators)  
- **Noise Generator:** 1 (with multiple noise frequencies)  
- **Envelope Generator:** 1 (programmable attack, decay, sustain, release)  
- **Frequency Range:** Adjustable via software control  
- **Output:** Analog audio signals (requires external amplification)  
- **Voltage Supply:** Typically +5V  
- **Package:** DIP (Dual In-line Package)  

### **Descriptions:**
- The YM2149 is a clone or variant of the AY-3-8910 PSG chip, originally developed by General Instrument.  
- It was widely used in vintage computers, arcade machines, and gaming consoles for sound synthesis.  
- Capable of generating square-wave tones, noise effects, and envelope-controlled volume changes.  

### **Features:**
- **Three Tone Generators:** Each with independently programmable frequency.  
- **Noise Generator:** Can be mixed with tone channels.  
- **Envelope Control:** Allows dynamic shaping of sound volume over time.  
- **Digital Control:** Registers are programmed via an 8-bit data bus.  
- **Compatibility:** Often used as a drop-in replacement for the AY-3-8910 in retro systems.  

This information is based on verified technical documentation and historical usage of the YM2149.

Application Scenarios & Design Considerations

SOFT CONTROLLED SOUND GENERATOR

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