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发布者:微桥 发布时间:2011/10/14 阅读:8708次    关键字: 音频功放
EMA2004-2.7W Mono Audio Amplifier停产



EMA2004-2.7W Mono Fully Differential Audio Power Amplifier DataSheet 

停产

General Description
    The EMA2004 is a 2.7W mono fully differential amplifier designed to drive a speaker with at least 4Ω impedance while consuming only 20 mm2 total PCB area in most applications. The device operates from 2.5 V to 5.5 V, drawing only 5mA of quiescent current. The EMA2004 is available in the space-saving 3 mm x 3 mm TDFN package.
    The EMA2004 is ideal for PDA/smart phone applications due to features such as  70dB supply voltage rejection from 20 Hz to 2 kHz, improved RF rectification immunity, small PCB area, and a fast startup with minimal pop.

Features
.Designed for Wireless or Cellular Handsets and PDAs
.2.7 W Into 4Ω From a 5-V Supply at THD = 10% (Typ)
.Low Supply Current: 5mA (Typ) at 5 V
.Shutdown Current: 0.1 μA (Typ)
.Fast Startup With Minimal Pop
.Only Three External Components
.Improved PSRR (-70 dB) and Wide Supply Voltage (2.5
V to 5.5 V) for Direct Battery Operation
.Fully Differential Design Reduces RF Rectification
.-63 dB CMRR Eliminates Two Input Coupling Capacitors
.Pin to Pin Compatible With TPA6204A1 in TDFN
Package
.Available in 3 mm X 3 mm TDFN Package
Applications
. Ideal for Wireless Handsets
. PDAs
. Notebook Computers

Audio Power Amplifier > Class A/B

 

Part Number

Description

Po(Max output power, W)

Typical THD+N (%)

PSRR (dB)

Vin min(V)

Vin max(V)

Shutdown current (uA)

Earphone

Package

EMA1001

 1W Mono

 1 (8ohm, 5V, 1%THD+N)

 0.04 (0.4W, 1KHz)

 60

 2.2

 5.5

 0.1

 N/A

 MSOP-8, SOP-8

EMA1002

 1W Mono with Headphone Sense

 1 (8ohm, 5V, 1%THD+N)

 0.04 (0.4W, 1KHz)

 60

 2.2

 5.5

 0.1

 Yes

 MSOP-8

EMA1003

 1.2W Mono Fully Differential with Shutdown Select

 1.2 (8ohm, 5V, 1%THD+N)

 0.008 (0.4W, 8ohm, 1KHz)

 70

 2.2

 5.5

 0.1

 N/A

 MSOP-10 (FD)

EMA1901

 1.25W Mono

 1.25 (8ohm, 5V, 1%THD+N)

 0.01 (0.4W, 1KHz)

 60

 2.5

 5.5

 0.1

 N/A

 WL-CSP

EMA1903

 1W Mono Fully Differential with Shutdown Select

 1 (8ohm, 5V, 1%THD+N)

 0.008 (0.4W, 8ohm, 1KHz)

 73

 2.2

 5.5

 0.1

 N/A

 WL-CSP

EMA2001

 3W Mono with Shutdown mode

 3 (3ohm, 5V, 10%THD+N)

 0.02 (1W, 4ohm, 1KHz)

 60

 2.6

 5.5

 0.1

 N/A

 MSOP-8, TDFN-8

EMA2004

 2.7W Mono Fully Differential

 2.7 (4ohm, 5V, 10%THD+N)

 0.007 (0.6W, 8ohm, 1KHz, 3.6V)

 70

 2.5

 5.5

 0.1

 N/A

 MSOP-8, TDFN-8

EMA2901

 2.5W Mono

 2.5 (4ohm, 5V, 10%THD+N)

 0.05 (1W, 4ohm, 1KHz)

 60

 2.5

 5.5

, ,

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