Description

The NC5MXX-B is a two-channel voice synthesizer IC with PWM direct drive circuit. It features a built-in 4-bit tiny controller with one 4-bit input port and two 4-bit I/O ports. With the programming capabilities of the tiny controller, users can easily implement various applications including voice section combination, key trigger arrangement, output control, and other logic functions.

Specifications and features

• Single power supply: 2.4V - 5.5V
• 31 seconds voice capacity provided (@6KHz sample rate)
• 128x4 bits RAM provided
• 96Kx10 ROM size provided for voice data and program
• Maximum 16k program ROM provided
• Readable ROM code data
• IR carrier signal provided
• Built-in high quality speech synthesizer
• Adaptive playing speed from 2.5kHz to 20kHz
• Two independent voice channels (Channel 1 + Channel 2)
• Built-in PWM Direct Drive circuit and a fixed current D/A output
• System clock: 2MHz
• Low Power Reset

Application Scenarios

The NC5MXX-B is ideal for various applications where voice synthesis is required. It can be used in devices such as electronic toys, voice recognition systems, alarm systems, and more.

Comparison

Advantages:
- Single power supply allows for easy integration
- Built-in 4-bit tiny controller provides programming capabilities
- High quality speech synthesizer
- Adaptive playing speed for versatile applications
- Two independent voice channels
- PWM Direct Drive circuit for accurate output
- Low power reset feature for energy efficiency

Disadvantages:
- Limited voice capacity of 31 seconds
- System clock limited to 2MHz