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发布者:微桥EMA2001 发布时间:2011-10-14 阅读:4648次    关键字: 音频功放
EMA2001-3W Audio Power Amplifier


EMA2001-3W Audio Power Amplifier with Shutdown ModeDataSheet 

General Description
    The EMA2001 is a mono bridged audio power amplifier capable of delivering 3W of continuous average power into a 3Ω load with less than 10% THD when powered by a 5V power supply. 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 EMA2001 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 EMA2001 is unity-gain stable and can be configured by external gain-setting resistors. EMP products are RoHS and Halogen free compliant.

Key Specifications
.BTL mode PO at THD+N=1%, f=1kHz, VDD =5V
2.45 W (typ) into 3Ω
2.1 W (typ) into 4Ω
1.2 W (typ) into 8Ω
.BTL mode PO at THD+N=10%, f=1kHz, VDD =5V
3W (typ) into 3Ω
.Shutdown current 0.1μA (typ)
Features
.No output coupling capacitors, bootstrap capacitors,
or snubber circuits required
.Unity-gain stable
.FBP-8, MSOP-8, TDFN-8
.External gain configuration capability
Applications
. Portable Computers
. Desktop 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

 0.1

 N/A

 WL-CSP

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