The Split-TL082 Audio Transformer is a versatile device designed to provide galvanic isolation in audio circuits. With smart design and high-quality construction, this transformer is ideal for anyone needing clean separation between input and output signals.
Main Features
- Galvanic Isolation: Ensures input and output signals are free from ground loops and unwanted interference.
- 1:1:1 Transformation Ratio: Three identical trifilar windings allow easy conversion from unbalanced to balanced signals.
- High Signal Tolerance: Handles up to 9 Vpp or 3.2 Vrms without distortion or audio quality loss.
- Wide Bandwidth: 20 Hz to 100 kHz with no attenuation, guaranteeing faithful reproduction across the entire audible range.
- Low DC Resistance: Only 22 ohm per winding for high efficiency and minimal impact on the signal.
- No secondary load resistors required.
- PCB mounting
Bandwidth graph and 10 kHz square-wave test
Typical Applications
The Split-TL082 Audio Transformer is perfect for many audio uses, including:
- Driving balanced preamplifier circuits.
- Driving push-pull power stages.
- Eliminating ground loops and unwanted interference.
Warnings
This transformer does not tolerate DC current and must be used with a dual-supply operational amplifier (op-amp) providing 0 V DC offset at its output, as shown below:
Some photos of construction and finished product
Conclusions
The Split-TL082 Audio Transformer is an excellent solution for galvanic isolation in audio circuits. Thanks to its high-quality design and ability to handle high-fidelity signals, it is an intelligent choice for engineers, audio enthusiasts and professionals seeking reliable audio performance.