1FEATURES
234• DirectPath™
– Eliminates Pop/Clicks
– Eliminates Output DC-Blocking Capacitors
– Provides Flat Frequency Response 20
Hz–20 kHz
• Low Noise and THD
– SNR > 109 dB
– Typical Vn < 7 μVms
– THD+N < 0.002%
• Output Voltage Into 2.5-kΩ Load
– 2 Vrms With 3.3-V Supply Voltage
– 3 Vrms With 5-V Supply Voltage
• Differential Input
• External Undervoltage Mute

APPLICATIONS
• PDP / LCD TV
• Blu-ray Disc™, DVD Players
• Home Theater in a Box
• Set-Top Boxes

DESCRIPTION
The DRV603PW is a 3-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 DRV603 is capable of driving 3 Vrms
into a 2.5-kΩ load with 5-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 line outputs that have ±8 kV IEC
ESD protection. The DRV603 (occasionally referred
to as the ‘603) has built-in shutdown control for
pop-free on/off control. The DRV603 has an external
and internal undervoltage detector that mutes the
output.
Using the DRV603 in audio products can reduce
component count considerably compared to
traditional methods of generating a 3-Vrms output. The
DRV603 does not require a power supply greater
than 5 V to generate its 8.5-Vpp output, nor does it
require a split-rail power supply. The DRV603 integrates its own charge pump to generate a
negative supply rail that provides a clean, pop-free
ground biased 3-Vrms output.
The DRV603 is available in a 14-pin TSSOP.
If the low noise and trimmed dc-offset and external
undervoltage mute function are not beneficial in the
application, TI recommends the footprint compatible
DRV602.