AS1705

Overview

The AS1705 is a mono audio amplifier integrated circuit manufactured by ams-OSRAM USA INC. It is housed in a 10-DFN package and delivers an output power of 1.8W. The device operates within a supply voltage range of 2.7V to 5.5V. It features configurable gain settings, shutdown control, and adjustable output impedance options for various load conditions.

Feature Summary

• Mono audio amplification with 1.8W output capability
• Configurable gain and input resistance via external jumpers
• Shutdown mode support for power management
• Adjustable output impedance for different speaker loads

Applications

• Audio evaluation and testing using dedicated demoboard
• Differential signal source amplification
• Headphone or speaker interface circuits

Procurement Notes

Verify the specific package type and manufacturer documentation before procurement. Confirm compatibility with the intended operating voltage range and load requirements. Ensure that any required configuration jumpers or external components are available for proper setup during integration and testing phases.

Selection Notes

Select this component for applications requiring a compact mono audio amplifier solution. Consider the 10-DFN package size for space-constrained designs. Verify that the 1.8W output power meets the system's audio drive requirements and that the 2.7V to 5.5V supply range aligns with the available power rails.

Part Context

The AS1705 belongs to a family of audio amplifiers that includes the AS1702, AS1703, and AS1704 models. These devices share similar operational characteristics but may differ in specific gain configurations and internal circuitry. The AS1705 is specifically designed for mono audio applications requiring moderate power output in a small form factor.

Replacement Considerations

AS1702, AS1703, AS1704