This is the user's guide of Texas Instruments 1998 Mixed-Signal Products User’s Guide SLOU025.
The Texas Instruments TPA122 MSOP Audio Amplifier Evaluation Module is a low‑power stereo audio power amplifier designed for line‑level, headphone and small‑speaker applications. The guide provides an overview of the module’s features, specifications, and how it integrates with the TI Plug‑N‑Play Audio Amplifier Evaluation Platform.
The document includes quick‑start instructions, detailed wiring diagrams, power‑supply requirements, input/output connections, and a complete parts list, enabling users to set up the module either on the evaluation platform or as a stand‑alone device.
| Supply voltage range | 2.5 V to 5.5 V |
|---|---|
| Supply current (I_DD) | 160 mA max |
| Continuous output power | 150 mW into 8 Ω at VDD=5 V |
| Audio input voltage | V_I VDD + 0.3 Vpp max |
| Minimum load impedance | 8 Ω |
The module operates from a VDD supply voltage between approximately 2.5 V and 5.5 V.
It delivers 150 mW of continuous output power into an 8 Ω load when powered at 5 V.
The maximum supply current is 160 mA.