EMA2004-2.7W Mono Fully Differential Audio Power Amplifier  DataSheet
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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
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Audio Power Amplifier > Class A/B |
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Part Number |
Description |
Po(Max output power, W) |
Typical THD+N (%) |
PSRR (dB) |
Vin min(V) |
Vin max(V) |
Shutdown current (uA) |
Earphone |
Package |
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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 |
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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 |
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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) |
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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 |
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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 |
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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 |
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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 |
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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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