EUA6205 Datasheet, PDF (1/13 Pages) Eutech Microelectronics Inc – 1.25-W Mono Fully Differential Audio Power Amplifier with 1.8V Input Logic Thresholds

EUA6205
1.25-W Mono Fully Differential Audio Power
Amplifier with 1.8V Input Logic Thresholds
DESCRIPTION
The EUA6205 is a mono fully-differential audio
amplifier, capable of delivering 1.25W of continuous
average power to an 8Ω BTL load with less than 1%
THD+N from a 5V power supply, and 630mW to an 8Ω
load from a 3.6V power supply. The Shutdown pin is
fully compatible with 1.8V logic GPIO, such as
are used on low power cellular chipsets.
Features like 85-dB PSRR from 90 Hz to 5 kHz,
improved RF-rectification immunity, and small PCB
area makes the EUA6205 ideal for wireless handsets.
FEATURES
z Supply Voltage 2.5V to 5.5V
z 1.25W into 8Ω from a 5-V Supply at THD=1% (typ)
z Shutdown Pin has 1.8V Compatible Thresholds
z Low Supply Current: 3.4mA Typical
z Shutdown Current < 10µA
z Only Five External Components
- Improved PSRR (87dB) for Direct Battery
Operation
- Full Differential Design Reduces RF Rectification
- Improved CMRR Eliminates Two Input Coupling
Capacitors
z Available in 3mm*3mm TDFN-8 and Thermally
Enhanced MSOP-8 Packages
z RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
z Wireless Handsets, PDAs, and other mobile devices
Typical Application Circuit
DS6205 Ver 1.0 Mar. 2007
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