LM48821

Name: LM48821
Brand: TI
SKU: LM48821
Price: 0.813 USD

활성

52mW, 스테레오, 아날로그 입력 헤드폰 증폭기

지금 주문

데이터 시트

document-pdfAcrobat Direct Coupled, Ultra Low Noise, 52mW Diff Input Stereo Hp Amp w/I2C Vol Cntrl datasheet (Rev. A) (영어)

LM48821

활성

데이터 시트

지금 주문

제품 상세 정보

Output power (W)

0.053

Analog supply (min) (V)

2

Analog supply voltage (max) (V)

4

Load (min) (Ω)

16

PSRR (dB)

82

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Headphone channels

Stereo

Volume control

Yes

Shutdown current (ISD) (µA)

0.1

Architecture

Class-AB (ground-centered)

Iq per channel (typ) (mA)

1.5

Output power (W)

0.053

Analog supply (min) (V)

2

Analog supply voltage (max) (V)

4

Load (min) (Ω)

16

PSRR (dB)

82

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Headphone channels

Stereo

Volume control

Yes

Shutdown current (ISD) (µA)

0.1

Architecture

Class-AB (ground-centered)

Iq per channel (typ) (mA)

1.5

DSBGA (YZR)

16

5.0625 mm² 2.25 x 2.25

Ground Referenced Outputs
Differential Inputs
I²C Volume and Mode Controls
Available in Space-Saving DSBGA Package
Ultra Low Current Shutdown Mode
Advanced Output Transient Suppression Circuitry Eliminates Noises During Turn-On and Turn-Off Transitions
2.0V to 4.0V Operation (PV_DD and SV_DD)
1.8 to 4.0V Operation (I²CV_DD)
No Output Coupling Capacitors, Snubber Networks, Bootstrap Capacitors, or Gain-Setting Resistors Required

Key Specifications

Improved PSRR at 217Hz: 82dB (typ)
Stereo Output Power at VDD = 3V, RL = 16Ω, THD+N = 1%: 52mW (typ)
Mono Output Power at VDD = 3V, RL = 16Ω, THD+N = 1%: 93mW (typ)
Shutdown current: 0.1μA (typ)

All trademarks are the property of their respective owners.

Ground Referenced Outputs
Differential Inputs
I²C Volume and Mode Controls
Available in Space-Saving DSBGA Package
Ultra Low Current Shutdown Mode
Advanced Output Transient Suppression Circuitry Eliminates Noises During Turn-On and Turn-Off Transitions
2.0V to 4.0V Operation (PV_DD and SV_DD)
1.8 to 4.0V Operation (I²CV_DD)
No Output Coupling Capacitors, Snubber Networks, Bootstrap Capacitors, or Gain-Setting Resistors Required

Key Specifications

Improved PSRR at 217Hz: 82dB (typ)
Stereo Output Power at VDD = 3V, RL = 16Ω, THD+N = 1%: 52mW (typ)
Mono Output Power at VDD = 3V, RL = 16Ω, THD+N = 1%: 93mW (typ)
Shutdown current: 0.1μA (typ)

All trademarks are the property of their respective owners.

With its directly-coupled output technology, the LM48821 is a variable gain audio power amplifier capable of delivering 52mW_RMS per channel into a 16Ω single-ended load with less than 1% THD+N from a 3V power supply. The I²C volume control has a range of –76dB to 18dB.

The LM48821's Tru-GND technology utilizes advanced charge pump technology to generate the LM48821’s negative supply voltage. This eliminates the need for output-coupling capacitors typically used with single-ended loads.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM48821 does not require output coupling capacitors or bootstrap capacitors, and therefore, is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement.

The LM48821 incorporates selectable low-power consumption shutdown and channel select modes.

The LM48821 contains advanced output transient suppression circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.

With its directly-coupled output technology, the LM48821 is a variable gain audio power amplifier capable of delivering 52mW_RMS per channel into a 16Ω single-ended load with less than 1% THD+N from a 3V power supply. The I²C volume control has a range of –76dB to 18dB.

The LM48821's Tru-GND technology utilizes advanced charge pump technology to generate the LM48821’s negative supply voltage. This eliminates the need for output-coupling capacitors typically used with single-ended loads.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM48821 does not require output coupling capacitors or bootstrap capacitors, and therefore, is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement.

The LM48821 incorporates selectable low-power consumption shutdown and channel select modes.

The LM48821 contains advanced output transient suppression circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.

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	유형	직함		날짜
*	Data sheet	Direct Coupled, Ultra Low Noise, 52mW Diff Input Stereo Hp Amp w/I2C Vol Cntrl datasheet (Rev. A)		2013/05/03

LM48821

52mW, 스테레오, 아날로그 입력 헤드폰 증폭기

LM48821

제품 상세 정보

Key Specifications

Key Specifications

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