Description

The 8552TS is a two-channel audio power amplifier that provides an output power of 2 × 1.4 W into an 8 Ω load using a 5 V power supply. It contains two BTL power amplifiers, two digital volume controls, and standby/mute logic. The volume and balance of the amplifiers can be controlled using two digital input pins, which can be driven by simple push-buttons or a microcontroller.

Specifications and Features

• One-pin digital volume control (for each channel)
• Volume setting with up/down pulses
• Auto repeat function on volume setting
• Headphone sensing
• Maximum gain set by selection pin
• Low sensitivity for EMC radiation
• Internal feedback resistors
• Flexibility in use
• Few external components
• Low saturation voltage of the output stage
• Standby mode controlled by CMOS compatible levels
• Low standby current
• No switch-on/switch-off plops
• High supply voltage ripple rejection
• Protected against electrostatic discharge
• Outputs short-circuit safe to ground, VDD, and across the load
• Thermally protected.

Application Scenarios

• Portable consumer products
• Notebook computers
• Communication equipment

Comparison

- Provides high-quality audio power amplification
- Flexibility in use with simple control options
- Minimal external components required
- Low power consumption
- Protected against electrostatic discharge
- Limited output power (2 × 1.4 W)
- Only compatible with 8 Ω load
- May require additional amplifiers for larger sound systems