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Eutech Microelectronics

EUA2012A Datasheet Preview

EUA2012A Datasheet

2.5-W/CH Stereo Filter-less Class-D Audio Power Amplifier

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EUA2012A
2.5-W/CH Stereo Filter-less Class-D
Audio Power Amplifier with Auto-Recovery
DESCRIPTION
The EUA2012A is a high efficiency, 2.5W/channel stereo
class-D audio power amplifier. A low noise, filterless
PWM architecture eliminates the output filter, requiring
only two external components for operation.
Operating from a single 5V supply, EUA2012A is capable
of delivering 2.5W/ channel of continuous output power to
a 4load with 10% THD+N.
The EUA2012A features independent shutdown controls
for each channel. The gain can be selected to 6, 12, 18, or
24 dB utilizing the G0 and G1 gain select pins. High PSRR
and differential architecture provide increased immunity to
noise and RF rectification.
The EUA2012A is available in space-saving WCSP,
TQFN and TSSOP packages, is an idea choice for mobile
phones and other portable communication devices.
FEATURES
Low EMI Emission
Output Power By TQFN Package
- 2.5W/Ch Into 4at 5V
- 1.6W/Ch Into 8at 5V
- 800mW/Ch Into 8at 3.6V
Wide Supply Voltage: 2.5V to 5.5V
Independent Shutdown Control for Each Channel
Selectable Gain of 6,12,18 and 24 dB
High PSRR :63dB at 217Hz
Fast 34ms Startup Time
Low 5mA Quiescent Current at 3.6V Supply and
1.5µA Shutdown Current
Short-Circuit Auto-Recovery and Thermal Protection
Space Saving Packages
- 4mm × 4mm TQFN-20 package
- 2mm × 2mm WCSP-16 package
- TSSOP-20 package
RoHS Compliant and 100% Lead(Pb)-Free,
Halogen-Free
Typical Application Circuit
APPLICATIONS
Wireless or Cellular Handsets and PDAs
Portable Audios
Notebook PC
DS2012A Ver 1.4 Feb. 2011
Figure1.
1




Eutech Microelectronics

EUA2012A Datasheet Preview

EUA2012A Datasheet

2.5-W/CH Stereo Filter-less Class-D Audio Power Amplifier

No Preview Available !

Pin Configurations
Package Type
EUA2012ATel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
Pin Configurations
Package Type
Pin Configurations
TQFN-20
WCSP-16
TSSOP-20
Pin Description
PIN
INR+
INR-
INL+
INL-
SDR
SDL
G0
G1
PVDD
AVDD
PGND
AGND
OUTR+
OUTR-
OUTL+
OUTL-
NC
TQFN-20 WCSP-16 TSSOP-20 I/O
DESCRIPTION
16 D1
18 I Right channel positive input
17 C1
19 I Right channel negative input
20 A1
2 I Left channel positive input
19 B1
1 I Left channel negative input
8 B3 10 I Right channel shutdown terminal (active low)
7 B4
9 I Left channel shutdown terminal (active low)
15 C2
17 I Gain select (LSB)
1 B2
4 I Gain select (MSB)
3,13 A2
6,15 I Power supply (Must be same voltage as AVDD)
9 D2 11 I Analog supply (Must be same voltage as PVDD)
4,12 C4
7,14 I Power ground
18 C3
20 I Analog ground
14 D3
16 O Right channel positive differential output
11 D4
13 O Right channel negative differential output
2 A3
5 O Left channel positive differential output
5 A4
8 O Left channel negative differential output
6,10 -
3,12 - No internal connection
DS2012A Ver 1.4 Feb. 2011
2


Part Number EUA2012A
Description 2.5-W/CH Stereo Filter-less Class-D Audio Power Amplifier
Maker Eutech Microelectronics
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