|
DRV632 Datasheet, PDF (1/23 Pages) Texas Instruments – DirectPath™, 2-VRMS Audio Line Driver With Adjustable Gain | |||
|
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
DRV632
SLOS681B â JANUARY 2011 â REVISED AUGUST 2015
DRV632 DirectPathâ¢, 2-VRMS Audio Line Driver With Adjustable Gain
1 Features
â¢1 Stereo DirectPath⢠Audio Line Driver
â 2 Vrms Into 10 k⦠With 3.3-V Supply
⢠Low THD+N < 0.01% at 2 Vrms Into 10 kâ¦
⢠High SNR, >90 dB
⢠600-⦠Output Load Compliant
⢠Differential Input and Single-Ended Output
⢠Adjustable Gain by External Gain-Setting
Resistors
⢠Low DC Offset, <1 mV
⢠Ground-Referenced Outputs Eliminate DC-
Blocking Capacitors
â Reduce Board Area
â Reduce Component Cost
â Improve THD+N Performance
â No Degradation of Low-Frequency Response
Due to Output Capacitors
⢠Short-Circuit Protection
⢠Click- and Pop-Reduction Circuitry
⢠External Undervoltage Mute
⢠Active Mute Control for Pop-Free Audio On/Off
Control
⢠Space-Saving TSSOP Package
2 Applications
⢠Set-Top Boxes
⢠Blu-ray Discâ¢, DVD Players
⢠LCD and PDP TV
⢠Mini/Micro Combo Systems
⢠Sound Cards
⢠Laptops
3 Description
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 TIâs patented DirectPathâ¢
technology, The DRV632 is capable of driving 2 VRMS
into a 10-k⦠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.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DRV632
TSSOP (14)
5.00 mm à 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Simplified Diagram
±
RIGHT
DAC
+
DRV632
DAC
+
LEFT
±
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
|
▷ |