DataSheetWiki


EMA1901 fiches techniques PDF

Elite Semiconductor - 1.25W Mono Audio Power Amplifier

Numéro de référence EMA1901
Description 1.25W Mono Audio Power Amplifier
Fabricant Elite Semiconductor 
Logo Elite Semiconductor 





1 Page

No Preview Available !





EMA1901 fiche technique
ESMT/EMP
EMA1901
1.25W Mono Audio Power Amplifier
General Description
The EMA1901 is an audio power amplifier primarily designed
for portable communication applications such as mobile
phones and portable multimedia players (PMP). To an 8Ω
BTL load, it can deliver 1.25 watt of continuous average
power with less than 1% distortion (THD+N) from a 5VDC
supply. Typical THD+N is about 0.015% at 1Watt.
The EMA1901 is pin-compatible to National Semi’s LM4890
Micro-SMD package with a superior (THD+N). It does not
require output coupling capacitors or bootstrap capacitors,
and is ideal for mobile phone and other low voltage
applications where minimal power consumption is a
primary requirement.
The EMA1901 features a low-power consumption shutdown
mode, and an internal thermal shutdown protection
mechanism. Advanced pop & click circuitry is built in to
eliminate noises that would otherwise occur during turn-on
and turn-off transitions. The EMA1901 is unity-gain stable
and can be configured by external gain-setting resistors.
EMP products are RoHS and Halogen free compliant.
Key Specifications
„ PSRR at 217Hz, VDD = 5V (Fig. 1)
„ Power Output at 5.0V & 1% THD
„ Power Output at 2.6V & 1% THD
„ Shutdown Current
60dB(typ.)
1.25W(typ.)
300mW(typ.)
< 1µA(typ.)
Features
„ Available in space-saving WL-CSP package
„ Ultra low current shutdown mode
„ BTL output driving capacitive loads
„ Improved pop & click circuitry eliminating noises
during turn-on and turn-off transitions
„ 2.5 - 5.5V operation
„ No output coupling capacitors, snubber networks or
bootstrap capacitors required
„ Thermal shutdown protection
„ Unity-gain stable
„ External gain configuration capability
Applications
„ Mobile Phones
„ PDAs and PMPs
„ Portable Electronic Device
Connection Diagram
WL-CSP Package
Elite Semiconductor Memory Technology Inc./Elite MicroPower Inc.
Publication Date : Aug. 2009
Revision : 5.1
1/14

PagesPages 14
Télécharger [ EMA1901 ]


Fiche technique recommandé

No Description détaillée Fabricant
EMA1901 1.25W Mono Audio Power Amplifier Elite Semiconductor
Elite Semiconductor
EMA1901-50WL09GRR 1.25W Mono Audio Power Amplifier Elite Semiconductor
Elite Semiconductor
EMA1903 1W Fully Differential Audio Power Amplifier Elite Semiconductor
Elite Semiconductor
EMA1903-50WL09GRR 1W Fully Differential Audio Power Amplifier Elite Semiconductor
Elite Semiconductor

US18650VTC5A

Lithium-Ion Battery

Sony
Sony
TSPC106

PCI Bus Bridge Memory Controller

ATMEL
ATMEL
TP9380

NPN SILICON RF POWER TRANSISTOR

Advanced Semiconductor
Advanced Semiconductor


www.DataSheetWiki.com    |   2020   |   Contactez-nous  |   Recherche