EMA2202-Stereo 2.4W Audio Power Amplifier with DC Volume Control and Selectable Gain  DataSheet
GENERAL DESCRIPTION
The EMA2202 is a monolithic integrated circuit that provides DC volume control, and stereo bridged audio power amplifiers capable of producing 2W into 4Ω or 2.4W into 3Ω with less than 1.0% THD+N.
The EMA2202 incorporates a DC volume control, stereo bridged audio power amplifiers and a selectable gain or bass boost, making it optimally suited for multimedia monitors, portable radios, desktop, and portable computer applications. The EMA2202 features an externally controlled, low-power consumption shutdown mode, and both power amplifier and headphone mute for maximum system flexibility and performance. Advanced pop & click circuitry is built in to eliminate noises that would otherwise occur during turn-on and
turn-off transitions.
KEY SPECIFICATION
． BTL mode PO at 5V, f=1kHz, 1% THD+N
2.4W (typ) into 3Ω
2.0W (typ) into 4Ω
1.1W (typ) into 8Ω
． BTL mode PO at 5V, f=1kHz, 10% THD+N
3W (typ) into 3Ω
． Single-ended mode PO at 5V, f=1kHz, 1% THD+N
85mW (typ) into 32Ω
． Shutdown current 0.1μA (typ)
FEATURES
． 32 steps DC Volume Control
． System Beep Detect
． Stereo switchable bridged/single-ended power amplifiers
． Selectable internal/external gain and configurable bass boost
． “Click and pop” suppression circuitry
． Thermal shutdown protection circuitry
APPLICATIONS
． Portable and Desktop Computers
． Multimedia Monitors
． Portable Radios, PDAs, and Portable TVs
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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 |
|
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 | |