Overview
The TS482IDT, 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 operates over a voltage range of 2V to 5.5V, making it versatile for various applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 2 to 5.5 | V |
| Output Power (THD+N = 0.1%, RL = 16Ω, VCC = 5V) | 100 | mW |
| Output Power (THD+N = 0.1%, RL = 16Ω, VCC = 3.3V) | 38 | mW |
| Output Power (THD+N = 0.1%, RL = 16Ω, VCC = 2V) | 11.5 | mW |
| Signal-to-Noise Ratio (SNR) at 5V | 110 | dB(A) |
| Power Supply Rejection Ratio (PSRR) at 5V | 85 | dB |
| Crosstalk Immunity at 1kHz | 100 | dB |
| Operating Temperature Range | -40 to +85 | °C |
| Package Types | SO-8, MiniSO-8, DFN8 |
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)
- Available in SO-8, MiniSO-8, and DFN8 packages
Applications
- Stereo headphone amplifier
- Optical storage devices
- Computer motherboards
- PDA, organizers, and notebook computers
- High-end TV, set-top boxes, and DVD players
- Sound cards
Q & A
- What is the maximum output power of the TS482IDT at 5V?
The TS482IDT can deliver up to 100mW per channel into 16Ω loads at 5V with a THD+N of 0.1%.
- What are the operating voltage ranges for the TS482IDT?
The TS482IDT operates from 2V to 5.5V.
- What is the signal-to-noise ratio (SNR) of the TS482IDT at 5V?
The SNR is 110dB(A) at 5V.
- What is the power supply rejection ratio (PSRR) of the TS482IDT at 5V?
The PSRR is 85dB at 5V.
- Does the TS482IDT have click reduction circuitry?
Yes, it includes switch ON/OFF click reduction circuitry.
- What are the available package types for the TS482IDT?
The TS482IDT is available in SO-8, MiniSO-8, and DFN8 packages.
- What is the crosstalk immunity of the TS482IDT at 1kHz?
The crosstalk immunity is 100dB at 1kHz.
- What is the operating temperature range for the TS482IDT?
The operating temperature range is -40°C to +85°C.
- Can the TS482IDT be used in high-end audio applications?
Yes, it is suitable for high-end audio applications due to its high SNR and low THD+N.
- How can the gain of the TS482IDT be configured?
The gain can be configured using external gain-setting resistors.
