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1 Features

? DirectPath?

– Eliminates Pops and Clicks

– Eliminates Output DC-Blocking Capacitors

– 3-V to 3.6-V Supply Voltage

? Low Noise and THD

– SNR > 105 dB at –1× Gain

– Vn < 12 μVms, 20 Hz to 20 kHz at –1× Gain

(Typical)

– THD+N < 0.003% at 10-kΩ Load and –1× Gain

? 2-Vrms Output Voltage Into 600-Ω Load

? Single-Ended Input and Output

? Programmable Gain Select Reduces Component

Count

– 13× Gain Values

? Active Mute With More Than 80-dB Attenuation

? Short-Circuit and Thermal Protection

? ±8-kV HBM ESD-Protected Outputs

2 Applications

? PDP and LCD TVs

? DVD Players

? Mini and Micro Combo Systems

? Soundcards

3 Description

The DRV612 is a single-ended, 2-Vrms stereo line

driver designed to reduce component count, board

space, and cost. It is ideal for single-supply

electronics where size and cost are critical design

parameters.

The DRV612 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 DRV612 device is designed using TI’s patented

DirectPath technology, which integrates a charge

pump to generate a negative supply rail that provides

a clean, pop-free ground-biased output. The DRV612

is capable of driving 2 Vms into a 600-Ω load.

DirectPath technology also allows the removal of the

costly output dc-blocking capacitors.

The device has fixed-gain single-ended inputs with a

gain-select pin. Using a single resistor on this pin, the

designer can choose from 13 internal programmable

gain settings to match the line driver with the codec

output level. The device also reduces the component

count and board space.

Line outputs have ±8-kV HBM ESD protection,

enabling a simple ESD protection circuit. The

DRV612 has built-in active mute control with more

that 80-dB attenuation for pop-free mute on/off

control.

The DRV612 is available in a 14-pin TSSOP and 16-

pin VQFN. For a footprint-compatible stereo

headphone driver, see the TPA6139A2.