The DRV632 is a 2-VRMS pop-free stereo line driver 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 DRV632 is capable of driving 2 VRMS into a 10-kΩ load with 3.3-V supply voltage. The device has differential inputs and uses external gain-setting resistors to support a gain range of ±1 V/V to ±10 V/V, and gain can be configured individually for each channel. Line outputs have ±8-kV IEC ESD protection, requiring just a simple resistor-capacitor ESD protection circuit. The DRV632 has built-in active-mute control for pop-free audio on/off control. The DRV632 has an external undervoltage detector that mutes the output when the power supply is removed, ensuring a pop-free shutdown.
Using the DRV632 in audio products can reduce component count considerably compared to traditional methods of generating a 2-VRMS output. The DRV632 does not require a power supply greater than 3.3 V to generate its 5.6-Vpp output, nor does it require a split-rail power supply. The DRV632 integrates its own charge pump to generate a negative supply rail that provides a clean, pop-free ground-biased 2-VRMS output.
The DRV632 is available in a 14-pin TSSOP.
|Part number||Order||Number of channels (#)||Gain (V/V)||THD + N @ 1 kHz (%)||Noise floor (RTO, 20 kHz BW) (dBu)||Load capacitance (µF)||Slew rate (Typ) (V/us)||Small-Signal bandwidth (Typ) (MHz)||Supply (Min) (V)||Supply (Max) (V)||Iq (Typ) (mA)||Operating temperature range (C)||Package Group|
||2||Adjustable||0.002||110.9||4.5||8||3||3.6||14||-40 to 85||TSSOP | 14|
||2||Fixed||0.04||122.7||400e-6||2.2||3.2||1.8||4.5||8||-40 to 85||QFN | 20|
||2||Adjustable||0.008||113.3||300e-6||2.2||3.2||1.8||4.5||8||-40 to 85||QFN | 20|
||2||Adjustable||0.01||102.8||220e-6||4.5||8||3||5.5||11||-40 to 85||TSSOP | 14|
||2||Adjustable||0.001||126.7||220e-6||4.5||8||3||5.5||11||-40 to 85||TSSOP | 14|
||4||Adjustable||0.001||122.7||220e-6||4.5||8||3||3.7||11||-40 to 85||HTSSOP | 28|
||2||Adjustable||0.007||108.6||220e-6||4.5||8||3||3.6||14||-40 to 85||
TSSOP | 14
VQFN | 16