LM4809

現行

具低電位作動關機模式的 105-mW、立體聲道、類比輸入耳機放大器

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產品規格表

document-pdfAcrobat LM4809 Dual 105mW Headphone Amplifier with Active-Low Shutdown Mode datasheet (Rev. F) (英文)

LM4809

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

Shutdown current (ISD) (µA)

0.4

Architecture

Class-AB

Iq per channel (typ) (mA)

0.7

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

Shutdown current (ISD) (µA)

0.4

Architecture

Class-AB

Iq per channel (typ) (mA)

0.7

VSSOP (DGK)

14.7 mm² 3 x 4.9

WSON (NGL)

6.25 mm² 2.5 x 2.5

Active-Low Shutdown Mode
"Click and Pop" Reduction Circuitry
Low Shutdown Current
WSON, MSOP, and SOIC Surface Mount Packaging
No Bootstrap Capacitors Required
Unity-Gain Stable

Key Specifications

THD+N at 1kHz at 105mW Continuous Average Power into 16Ω 0.1% (typ)
THD+N at 1kHz at 70mW Continuous Average Power into 32Ω 0.1% (typ)
Shutdown Current 0.4µA (typ)

All trademarks are the property of their respective owners.

Active-Low Shutdown Mode
"Click and Pop" Reduction Circuitry
Low Shutdown Current
WSON, MSOP, and SOIC Surface Mount Packaging
No Bootstrap Capacitors Required
Unity-Gain Stable

Key Specifications

THD+N at 1kHz at 105mW Continuous Average Power into 16Ω 0.1% (typ)
THD+N at 1kHz at 70mW Continuous Average Power into 32Ω 0.1% (typ)
Shutdown Current 0.4µA (typ)

All trademarks are the property of their respective owners.

The LM4809 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 LM4809 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.

The unity-gain stable LM4809 can be configured by external gain-setting resistors.

The LM4809 features an externally controlled, active-low, micropower consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.

The LM4809 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 unity-gain stable LM4809 can be configured by external gain-setting resistors.

The LM4809 features an externally controlled, active-low, micropower consumption shutdown mode, as well as an internal thermal shutdown protection mechanism.

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	類型	標題	日期
*	Data sheet	LM4809 Dual 105mW Headphone Amplifier with Active-Low Shutdown Mode datasheet (Rev. F)	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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