EUA6211 Datasheet, PDF (1/1 Pages) Eutech Microelectronics Inc – Advanced Stereo Headphone Amplifier

EUA6211
Advanced Stereo Headphone Amplifier
DESCRIPTION
EUA6211 is a dual audio power amplifier designed for
portable communication device applications such as
mobile phones. EUA6211 operates from a single 2.5V to
5.5V supply, consumes only 3.8mA of supply current,
capable of delivering 30mW of continuous average power
into a 16Ω load from a 3V power supply with a THD+N of
1%.
Base on the power supply delivered to the device, an
internal power management block generates a negative
voltage. Thus, the internal amplifiers provide outputs
referenced to Ground. In this configuration, the two
external heavy coupling capacitors can be removed. It
offers significant space and cost savings compared to a
typical stereo application.
EUA6211 has an internal gain of – 1.5V/V with low 0.03%
THD+N performance. An 80dB at 1kHz power-supply
rejection ratio (PSRR) allows these devices to operate from
noisy digital supplies without an additional linear regulator.
Comprehensive click-and-pop circuitry suppresses audible
clicks and pops on startup and shutdown.
Other features include short-circuit and thermal-overload
protection, and are specified over the extended -40°C to
+85°C temperature range. The device is available in tiny
12- bump WCSP (1.5mm× 2mm) and TDFN-12 packages.
FEATURES
No Bulky DC-Blocking Capacitors Required
2.5V to 5.5V Operation
Fixed -1.5V/V Gain
Low 0.03% THD+N
High PSRR (80dB at 1kHz)
Integrated Click-and-Pop Suppression
Low Quiescent Current (3.8mA)
Low-Power Shutdown Mode, < 0.1µA
Available in Space-Saving 12-Bump WCSP (1.5mm
× 2mm) and TDFN-12 Packages
RoHS Compliant and 100% Lead(Pb)-Free
Halogen-Free
APPLICATIONS
Cellular Phones
MP3 Players
Notebook PCs
Handheld Gaming Consoles
Typical Application Circuit
DS6211 Ver0.1 Feb. 2013
Figure1.
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