LM4811

現行

具數位音量控制的 105-mW、立體聲道、類比輸入耳機放大器

立即訂購

產品規格表

document-pdfAcrobat LM4811 Dual 105mW Headphone Amp w/Dig Vol Control & Shutdown Mode datasheet (Rev. D) (英文)

LM4811

現行

產品規格表

立即訂購

產品詳細資料

Output power (W)

0.105

Analog supply (min) (V)

Analog supply voltage (max) (V)

5.5

Load (min) (Ω)

PSRR (dB)

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Headphone channels

Stereo

Volume control

Yes

Shutdown current (ISD) (µA)

0.3

Architecture

Class-AB

Iq per channel (typ) (mA)

0.65

Output power (W)

0.105

Analog supply (min) (V)

Analog supply voltage (max) (V)

5.5

Load (min) (Ω)

PSRR (dB)

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Headphone channels

Stereo

Volume control

Yes

Shutdown current (ISD) (µA)

0.3

Architecture

Class-AB

Iq per channel (typ) (mA)

0.65

VSSOP (DGS)

14.7 mm² 3 x 4.9

Digital Volume Control Range from +12dB to −33dB
WSON and VSSOP Surface Mount Packaging
"Click and Pop" Suppression Circuitry
No Bootstrap Capacitors Required
Low Shutdown Current

Key Specifications

THD+N at 1kHz, 105mW Continuous Average Output Power into 16Ω 0.1 % (typ)
THD+N at 1kHz, 70mW Continuous Average Power into 32Ω 0.1 % (typ)
Shutdown Current 0.3 μA (typ)

All trademarks are the property of their respective owners.

Digital Volume Control Range from +12dB to −33dB
WSON and VSSOP Surface Mount Packaging
"Click and Pop" Suppression Circuitry
No Bootstrap Capacitors Required
Low Shutdown Current

Key Specifications

THD+N at 1kHz, 105mW Continuous Average Output Power into 16Ω 0.1 % (typ)
THD+N at 1kHz, 70mW Continuous Average Power into 32Ω 0.1 % (typ)
Shutdown Current 0.3 μA (typ)

All trademarks are the property of their respective owners.

The LM4811 is a dual audio power amplifier capable of delivering 105mW per channel of continuous average power into a 16Ω load with 0.1% (THD+N) from a 5V power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the LM4811 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.

The LM4811 features a digital volume control that sets the amplifier's gain from +12dB to −33dB in 16 discrete steps using a two−wire interface.

The unity-gain stable LM4811 also features an externally controlled, active-high, micropower consumption shutdown mode. It also has an internal thermal shutdown protection mechanism.

The LM4811 is a dual audio power amplifier capable of delivering 105mW per channel of continuous average power into a 16Ω load with 0.1% (THD+N) from a 5V power supply.

The LM4811 features a digital volume control that sets the amplifier's gain from +12dB to −33dB in 16 discrete steps using a two−wire interface.

The unity-gain stable LM4811 also features an externally controlled, active-high, micropower consumption shutdown mode. It also has an internal thermal shutdown protection mechanism.

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	類型	標題	日期
*	Data sheet	LM4811 Dual 105mW Headphone Amp w/Dig Vol Control & Shutdown Mode datasheet (Rev. D)	2013年 4月 5日
	Application note	Guidelines for Measuring Audio Power Amplifier Performance (Rev. A)	2019年 8月 26日
	Application note	AN-1849 An Audio Amplifier Power Supply Design (Rev. C)	2019年 6月 27日

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