Overview
The TS482IST, produced by STMicroelectronics, is a dual audio power amplifier designed to drive 16 or 32Ω stereo headsets efficiently, even at low voltages. It delivers up to 100mW per channel into 16Ω loads with a total harmonic distortion plus noise (THD+N) of 0.1% from a 5V power supply. The amplifier is unity-gain stable and can be configured using external gain-setting resistors. It is available in MiniSO-8 packaging, making it suitable for compact audio applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (Vcc) | 2 to 5.5 | V |
| Output Power (into 16Ω at 5V) | 100 | mW |
| Output Power (into 16Ω at 3.3V) | 38 | mW |
| Output Power (into 16Ω at 2V) | 11.5 | mW |
| THD+N (at 5V, 1kHz, 16Ω) | 0.1% | % |
| Signal-to-Noise Ratio (at 5V) | 110 | dB(A) |
| Power Supply Rejection Ratio (at 5V) | 85 | dB |
| Crosstalk Immunity (at 1kHz) | 100 | dB |
| Operating Temperature Range | -40 to +85 | °C |
| Storage Temperature Range | -65 to +150 | °C |
| Package | MiniSO-8 |
Key Features
- Unity-gain stable
- Rail-to-rail input and output
- High signal-to-noise ratio: 110dB(A) at 5V
- High power supply rejection ratio: 85dB at 5V
- Switch ON/OFF click reduction circuitry
- High crosstalk immunity: 100dB (F=1kHz)
- Operating from Vcc=2V to 5.5V
- Available in MiniSO-8 packaging
Applications
The TS482IST is suitable for various personal electronics and audio applications, including:
- Portable audio devices
- Headphone amplifiers
- Mobile phones and tablets
- Audio interfaces and mixers
- Other compact audio systems requiring efficient power amplification
Q & A
- What is the maximum output power of the TS482IST at 5V?
The TS482IST delivers up to 100mW per channel into 16Ω loads at 5V.
- What is the signal-to-noise ratio of the TS482IST at 5V?
The signal-to-noise ratio is 110dB(A) at 5V.
- What is the power supply rejection ratio of the TS482IST at 5V?
The power supply rejection ratio is 85dB at 5V.
- What are the operating voltage ranges for the TS482IST?
The TS482IST operates from Vcc=2V to 5.5V.
- What is the typical supply current of the TS482IST at no load?
The typical supply current is around 7.2mA at no load.
- What is the maximum junction temperature for the TS482IST?
The maximum junction temperature is 150°C.
- What is the crosstalk immunity of the TS482IST at 1kHz?
The crosstalk immunity is 100dB at 1kHz.
- Does the TS482IST have switch ON/OFF click reduction circuitry?
Yes, the TS482IST includes switch ON/OFF click reduction circuitry.
- In what package is the TS482IST available?
The TS482IST is available in MiniSO-8 packaging.
- What is the storage temperature range for the TS482IST?
The storage temperature range is -65 to +150°C.
