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发布者:微桥 发布时间:2011-10-17 阅读:4563次    关键字: 音频功放
EMA2202-Stereo 2.4W Audio Power Amplifier


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

ESMT_EMP 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

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

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

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

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

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

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

本文共分 1

  • 上篇文章AX3101替代AP1513,LSP3130,RM6513,XL1513,BM1513,TD1513
  • 下篇文章EMA2203-Stereo 2.4W Audio Power Amplifier
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