Active Volume Control for Professional Audio
Description
This TI Verified Design implements a split-supply: high-performance volume control which attenuates a professional line-level audio signal with minimal distortion and noise. An input buffer preserves the behavior of the system independent of the audio input source impedance. A radio frequency (RF) filter on the circuit front end removes noise from outside the audio band: while a bidirectional transient voltage suppressor (TVS) diode protects against overvoltage spikes.
Features
- Input and Output: Professional line-level audio signal (+4 dBu / 1.228 VRMS)Includes RF filter and over voltage protectionTHD+N at 1 kHz: Gain deviation (30% to 100% potentiometer rotation): ±1.5 dBSupply voltage: ±15 VUtilizes OPA1604 High-Performance Audio Operational Amplifier
Applications
- AV receiver
- Endoscope
- CPAP machine
- Electronic thermometer
- Fitness machine
- Wearable fitness & activity monitor
- Professional audio amplifier (rack mount)
- Aircraft cockpit display
- Interconnect/distribution box
- Electronic hospital bed & bed control
- Professional speaker systems
- Mother & neonatal care monitor
- Electric toothbrush
- Guitar amplifier & other music instrument amplifier
- Piano
- keyboard & synthesizer
- Motorized electronic wheel chair
- Medical chair & table
- Digital stethoscope
- Turntable
- Blood pressure monitor
- Circuit breaker (ACB
- MCCB
- VCB)
- Professional audio mixer/control surface
- Ultrasound scanner
- Operation tables
- Dental chairs
Product Categories
- Amplifiers
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Test Data
Get results faster with test and simulation data that's been verified.
Download the test file for TIPD136| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| TIPD136 Gerber | 09 Jan 2014 | ZIP | 1977 | |
| TIPD136 BOM | 09 Jan 2014 | 145 | ||
| TIPD136 Schematic | 09 Jan 2014 | 85 |