SOC

DRV612

RIGHT

DAC

DAC

LEFT

Line Driver

Gain

Programmable

-1x to -10x

-

+

-

+

DRV612

www.ti.com

SLOS690B

– DECEMBER 2010 – REVISED APRIL 2011

2-Vrms DirectPath

™ Line Driver With Programmable-Fixed Gain

Check for Samples: DRV612

1

FEATURES

DESCRIPTION

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

2

•

DirectPath

™

driver designed to reduce component count, board

– Eliminates Pops/Clicks

space

and

cost.

It

is

ideal

for

single-supply

– Eliminates Output DC-Blocking Capacitors

electronics where size and cost are critical design

parameters.

– 3-V to 3.6-V Supply Voltage

•

Low Noise and THD

The DRV612 does not require a power supply greater

– SNR > 105 dB at –1× Gain

require a split-rail power supply.

– Typical Vn < 12 μVms 20 Hz–20 kHz

Designed using TI

’s patented DirectPath technology,

at

–1× Gain

which integrates a charge pump to generate a

– THD+N < 0.003% at 10-kΩ Load

negative supply rail that provides a clean, pop-free

and

–1× Gain

ground-biased output. The DRV612 is capable of

•

2-Vrms Output Voltage Into 600-

Ω Load

driving

2

Vms

into

a

600-

Ω

load.

DirectPath

technology also allows the removal of the costly

•

Single-Ended Input and Output

output dc-blocking capacitors.

•

Programmable Gain Select Reduces

Component Count

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

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

– 13× Gain Values

designer can choose from 13 internal programmable

•

Active Mute With More Than 80 dB Attenuation

gain settings to match the line driver with the codec

•

Short Circuit and Thermal Protection

output level. It also reduces the component count and

board space.

•

±8-kV HBM ESD-Protected Outputs

Line outputs have

±8 kV HBM ESD protection,

APPLICATIONS

enabling

a

simple

ESD

protection

circuit.

The

DRV612 has built-in active mute control with more

•

PDP / LCD TV

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

•

DVD Players

control.

•

Mini/Micro Combo Systems

The DRV612 is available in a 14-pin TSSOP and

•

Soundcards

16-pin

QFN.

For

a

footprint-compatible

stereo

headphone driver, see TPA6139A2 (SLOS700).

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

DirectPath is a trademark of Texas Instruments.

UNLESS

OTHERWISE

NOTED

this

document

contains

Copyright

© 2010–2011, Texas Instruments Incorporated

PRODUCTION DATA information current as of publication date.

Products conform to specifications per the terms of Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.