深圳市世达微科技有限公司

Stereo DirectPath? Audio Line Driver The DRV632 is a 2-VRMS pop-free stereo line driver
– 2 Vrms Into 10 kΩ With 3.3-V Supply designed to allow the removal of the output
? Low THD+N < 0.01% at 2 Vrms Into 10 kΩ dc-blocking capacitors for reduced component count and cost. The device is ideal for single-supply
? High SNR, >90 dB electronics where size and cost are critical design
? 600-Ω Output Load Compliant parameters.
? Differential Input and Single-Ended Output Designed using TI’s patented DirectPath?
? Adjustable Gain by External Gain-Setting technology, The DRV632 is capable of driving 2 VRMS
Resistors into a 10-kΩ load with 3.3-V supply voltage. The
? Low DC Offset, <1 mV device has differential inputs and uses external gain-setting resistors to support a gain range of ±1
? Ground-Referenced Outputs Eliminate V/V to ±10 V/V, and gain can be configured
DC-Blocking Capacitors individually for each channel. Line outputs have
– Reduce Board Area ±8-kV IEC ESD protection, requiring just a simple
– Reduce Component Cost resistor-capacitor ESD protection circuit. The DRV632 has built-in active-mute control for pop-free
– Improve THD+N Performance audio on/off control. The DRV632 has an external
– No Degradation of Low-Frequency undervoltage detector that mutes the output when the
Response Due to Output Capacitors power supply is removed, ensuring a pop-free
? Short-Circuit Protection shutdown.
? Click- and Pop-Reduction Circuitry Using the DRV632 in audio products can reduce
component count considerably compared to
? External Undervoltage Mute traditional methods of generating a 2-VRMS output.
? Active Mute Control for Pop-Free Audio On/Off The DRV632 does not require a power supply greater
Control than 3.3 V to generate its 5.6-Vpp output, nor does it
? Space-Saving TSSOP Package require a split-rail power supply. The DRV632
integrates its own charge pump to generate a
APPLICATIONS negative supply rail that provides a clean, pop-free ground-biased 2-VRMS output.
? Set-Top Boxes
? Blu-ray Disc?, DVD Players The DRV632 is available in a 14-pin TSSOP.
? LCD and PDP TV
? Mini/Micro Combo Systems
? Sound Cards