DRV602PWR.B中文资料德州仪器数据手册PDF规格书

1FEATURES

234• DirectPath™

– Eliminates Pop/Clicks

– Eliminates Output DC-Blocking Capacitors

– Provides Flat Frequency Response

20Hz–20kHz

• Low Noise and THD

– SNR > 102 dB

– Typical V N < 15 mVms

– THD+N < 0.05% 20 Hz–20 kHz

• Output Voltage into 2.5-kΩ Load

– 2 Vrms with 3.3-V Supply Voltage

– 3 Vrms with 5-V Supply Voltage

• 3Vrms Output Voltage into 2.5 kΩ Load With

5V Supply Voltage

• Differential Input

APPLICATIONS

• Set-Top Boxes

• PDP / LCD TV

• Blu-ray Disc™, DVD-Players

• Home Theater in a Box

DESCRIPTION

The DRV602PW is a 3Vrms 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 DRV602 is capable of driving 3Vrms

into a 2.5kΩ load with 5V supply voltage. The device

has differential inputs and uses external gain setting

resistors, that supports a gain range of ±1V/V to

±10V/V. The use of external gain resistors also allows

the implementation of a 2nd order low pass filter to

compliment DAC's and SOC converters. The line

output of the DRV602 has ±8kV IEC ESD protection.

The DRV602 (referred to as the '602) has built-in

shutdown control for pop-free on/off control.

Using the DRV602 in audio products can reduce

component count compared to traditional methods of

generating a 3Vrms output. The DRV602 doesn't

require a power supply greater than 5V to generate

its 8.5VPP output, nor does it require a split rail power

supply. The DRV602 integrates its own charge pump

to generate a negative supply rail that provides a

clean, pop-free ground biased 3Vrms output.

The DRV602 is available in a 14 pin TSSOP

package.

If higher SNR, trimmed DC-offset and external

undervoltage-mute functions are beneficial in the

application, TI recommends the footprint compatible DRV603 (SLOS617).

For a stereo line and stereo HP driver see DRV604

(SLOS659).