DRV604 Series
2-Vrms DirectPath™; pop-free line driver & headphone amp with adjustable gain
Manufacturer: Texas Instruments
Catalog
2-Vrms DirectPath™; pop-free line driver & headphone amp with adjustable gain
Key Features
• DirectPath™Eliminates Pop/ClicksEliminate Output DC-Blocking Capacitors3.0V to 3.7V Supply VoltageLow Noise and THDSNR > 109dBTypical Vn < 7µVrms 20–20kHzTHD+N < 0.002% at 10kOutput Voltage into 5kLoad2Vrms at 3.3V Supply VoltageStereo DirectPath™ Headphone:40mW into 32at 3.3V Supply Voltage16to ∞Stable Load RangeDifferential InputPower Sense UVP for Brown Out ProtectionShort Circuit and Thermal Protection±8kV IEC ESD ProtectionFootprint Compatible with DRV602 and DRV603Supports Dual Line Driver ConfigurationAPPLICATIONSLCD and PDP TVBlu-ray Disc™, DVD PlayersMini/Micro Combo SystemsSoundcardsDirectPath, FilterPro are trademarks of Texas Instruments.Blu-ray Disc is a trademark of Blu-ray Disc Association.DirectPath™Eliminates Pop/ClicksEliminate Output DC-Blocking Capacitors3.0V to 3.7V Supply VoltageLow Noise and THDSNR > 109dBTypical Vn < 7µVrms 20–20kHzTHD+N < 0.002% at 10kOutput Voltage into 5kLoad2Vrms at 3.3V Supply VoltageStereo DirectPath™ Headphone:40mW into 32at 3.3V Supply Voltage16to ∞Stable Load RangeDifferential InputPower Sense UVP for Brown Out ProtectionShort Circuit and Thermal Protection±8kV IEC ESD ProtectionFootprint Compatible with DRV602 and DRV603Supports Dual Line Driver ConfigurationAPPLICATIONSLCD and PDP TVBlu-ray Disc™, DVD PlayersMini/Micro Combo SystemsSoundcardsDirectPath, FilterPro are trademarks of Texas Instruments.Blu-ray Disc is a trademark of Blu-ray Disc Association.
Description
AI
The DRV604 is a 2Vrms Pop-Free stereo line driver with stereo headphone output designed to allow the removal of the output DC-blocking capacitors for reduced component count and cost. The device is ideal for single supply electronics where size and cost are critical design parameters.
Designed using TI’s patented DirectPath™ technology, The DRV604 is capable of driving 2 Vrms into a 5kload. The headphone output can generate a clean 40mW into 32load from a 3.3V supply. The device has differential inputs and uses external gain setting resistors that supports a gain range of –1V/V to –10V/V. Headphone and line outputs have ±8kV IEC ESD protection enabling a simple ESD protection circuit. The DRV604 has built-in enable control for pop-free on/off control. DRV604 can monitor an external supply voltage using its built in comparator enabling it to shut down during a brown out condition before up stream audio DAC’s can produce click and pop artifacts.
Using the DRV604 in audio products can reduce component count considerably compared to traditional methods of generating headphone output and 2Vrms output. The DRV604 does not require a power supply greater than 3.3V to generate its 5.6Vpp output, nor does it require a split rail power supply. The DRV604 integrates its own charge pump to generate a negative supply rail that provides a clean, pop-free ground biased 2Vrms output.
The DRV604 is available in a 28-pin HTSSOP. For a stereo line driver with no HP amp see DRV603.
The DRV604 is a 2Vrms Pop-Free stereo line driver with stereo headphone output designed to allow the removal of the output DC-blocking capacitors for reduced component count and cost. The device is ideal for single supply electronics where size and cost are critical design parameters.
Designed using TI’s patented DirectPath™ technology, The DRV604 is capable of driving 2 Vrms into a 5kload. The headphone output can generate a clean 40mW into 32load from a 3.3V supply. The device has differential inputs and uses external gain setting resistors that supports a gain range of –1V/V to –10V/V. Headphone and line outputs have ±8kV IEC ESD protection enabling a simple ESD protection circuit. The DRV604 has built-in enable control for pop-free on/off control. DRV604 can monitor an external supply voltage using its built in comparator enabling it to shut down during a brown out condition before up stream audio DAC’s can produce click and pop artifacts.
Using the DRV604 in audio products can reduce component count considerably compared to traditional methods of generating headphone output and 2Vrms output. The DRV604 does not require a power supply greater than 3.3V to generate its 5.6Vpp output, nor does it require a split rail power supply. The DRV604 integrates its own charge pump to generate a negative supply rail that provides a clean, pop-free ground biased 2Vrms output.
The DRV604 is available in a 28-pin HTSSOP. For a stereo line driver with no HP amp see DRV603.
