EMA2217-2W STEREO AUDIO POWER AMPLIFIER WITH FOUR SELECTABLE GAIN SETTINGS  DataSheet
General Description
The EMA2217 is a stereo audio power amplifier in a 20-pin TSSOP thermally enhanced package capable of driving 2W of continuous RMS power per channel into 4Ω loads. Internal gain control minimizes the number of external components needed, simplifying the design, and freeing up board space for other features. Amplifier gain is internally configured and controlled by way of two terminals (G0 and G1). Gain settings of 6 dB, 10 dB, 15.6 dB, and 21.6 dB are provided. EMP products are Pb-free and RoHS compliant.
Features
．Internal Gain control Which Eliminates External Gain-Setting Resistors
．Fully Differential Configuration
．Low Supply Current (6mA Typical)
．De-pop Citcuitry
Applications
．Notebook Computers, PDAs, and Other Portable Audio devices
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ESMT_EMP 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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EMA1201 |
2W Stereo with Shutdown Mode |
2 (4ohm, 5V, 10%THD+N) |
0.03 (0.25W, 8ohm, 1KHz) |
60 |
2.5 |
5.5 |
0.1 |
N/A |
TQFN-16 |
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EMA2202 |
2.4W Stereo with DC Vol Control and Selectable Gain |
3 (3ohm, 5V, 10%THD+N) |
0.3 (1W, 8ohm, 1KHz) |
60 |
2.7 |
5.5 |
0.1 |
Yes |
TSSOP-28FD |
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EMA2203 |
2.4W Stereo with DC Vol Control and Headphone |
3 (3ohm, 5V, 10%THD+N) |
0.3 (1W, 8ohm, 1KHz) |
60 |
2.7 |
5.5 |
0.1 |
Yes |
TSSOP-20FD |
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EMA2204 |
2.7W Stereo Fully Differential |
2.7 (4ohm, 5V, 10%THD+N) |
0.01 (0.25W, 8ohm, 1KHz, 3.6V) |
65 |
2.2 |
5.5 |
0.1 |
N/A |
TSSOP-20FD, TQFN-20 |
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EMA2217 |
2W Stereo with 4 Selectable Gain Setting |
2.45 (4ohm, 5V, 10%THD+N) |
0.06 (1.5W, 4ohm, 1KHz) |
75 |
2.5 |
5.5 |
0.1 |
N/A |
TSSOP-20FD |
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EMA1286/1288 |
2W Stereo Audio Power Amplifier with Headphone Sense |
2(4ohm, 5V, 10%THD+N) |
0.15(0.25W, 8ohm, 1KHz) |
60 |
2.5 |
5.5 |
0.1 |
Yes (up to 225mW) |
TQFN-16 | |