LM48823

Name: LM48823
Brand: TI
SKU: LM48823
Price: 1.073 USD

現行

具 I2C 音量控制和整合式 5.4 V 充電泵的單聲道、類比輸入、陶瓷揚聲器驅動器

立即訂購

產品規格表

document-pdfAcrobat Mono, Bridge-Tied Load, Ceramic Speaker Driver w/I2C Volume Control and Reset datasheet (Rev. E) (英文)

LM48823

現行

產品規格表

立即訂購

產品詳細資料

Analog supply (min) (V)

2

Analog supply voltage (max) (V)

4.5

Speaker channels (max)

Mono

Audio input type

Analog

Shutdown current (ISD) (µA)

0.01

PSRR (dB)

93

Iq (typ) (mA)

3.3

Operating temperature range (°C)

to

Rating

Catalog

Analog supply (min) (V)

2

Analog supply voltage (max) (V)

4.5

Speaker channels (max)

Mono

Audio input type

Analog

Shutdown current (ISD) (µA)

0.01

PSRR (dB)

93

Iq (typ) (mA)

3.3

Operating temperature range (°C)

to

Rating

Catalog

DSBGA (YZR)

16

5.0625 mm² 2.25 x 2.25

Integrated Charge Pump

Bridge-tied Load Output

High PSRR

I 2 C Volume and Mode Control

Reset Input

Advanced Click-and-Pop Suppression

Low Supply Current

Minimum external components

Micro-power shutdown

Available in space-saving 16-bump µSMD package

Integrated Charge Pump

Bridge-tied Load Output

High PSRR

I 2 C Volume and Mode Control

Reset Input

Advanced Click-and-Pop Suppression

Low Supply Current

Minimum external components

Micro-power shutdown

Available in space-saving 16-bump µSMD package

The LM48823 is a single supply, mono, ceramic speaker driver with an integrated charge-pump, designed for portable devices, such as cell phones, where board space is at a premium. The LM48823 charge pump allows the device to deliver 5.4V_RMS from a single 4.2V supply.

The LM48823 features high power supply rejection ratio (PSRR), 93dB at 217Hz, allowing the device to operate in noisy environments without additional power supply conditioning. Flexible power supply requirements allow operation from 2.0V to 4.5V. The LM48823 features an active low reset input that reverts the device to its default state. Additionally, the LM48823 features a 32-step I 2C volume control. The low power Shutdown mode reduces supply current consumption to 0.01µA.

The LM48823’s superior click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM48823 is available in an ultra-small 16-bump micro SMD package (2mmx2mm).

Key Specifications

■ Output Voltage at V_DD = 4.2V, R_L = 2.2µF + 15Ω THD+N ≤ 1%	5.4V_RMS(typ)
■ Quiescent Power Supply Current at 4.2V	3.3mA (typ)
■ PSRR at 217Hz	93dB (typ)
■ Shutdown current	0.01μA (typ)

The LM48823 is a single supply, mono, ceramic speaker driver with an integrated charge-pump, designed for portable devices, such as cell phones, where board space is at a premium. The LM48823 charge pump allows the device to deliver 5.4V_RMS from a single 4.2V supply.

The LM48823 features high power supply rejection ratio (PSRR), 93dB at 217Hz, allowing the device to operate in noisy environments without additional power supply conditioning. Flexible power supply requirements allow operation from 2.0V to 4.5V. The LM48823 features an active low reset input that reverts the device to its default state. Additionally, the LM48823 features a 32-step I 2C volume control. The low power Shutdown mode reduces supply current consumption to 0.01µA.

The LM48823’s superior click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM48823 is available in an ultra-small 16-bump micro SMD package (2mmx2mm).

Key Specifications

■ Output Voltage at V_DD = 4.2V, R_L = 2.2µF + 15Ω THD+N ≤ 1%	5.4V_RMS(typ)
■ Quiescent Power Supply Current at 4.2V	3.3mA (typ)
■ PSRR at 217Hz	93dB (typ)
■ Shutdown current	0.01μA (typ)

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	類型	標題		日期
*	Data sheet	Mono, Bridge-Tied Load, Ceramic Speaker Driver w/I2C Volume Control and Reset datasheet (Rev. E)		2010年 10月 8日

LM48823

具 I2C 音量控制和整合式 5.4 V 充電泵的單聲道、類比輸入、陶瓷揚聲器驅動器

LM48823

產品詳細資料

Key Specifications

Key Specifications

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