Datasheet > SSM2518CPZ

SSM2518CPZ

更新时间： 2024-09-19 12:20:47

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
48页	2051K
描述
Digital Input Stereo, 2 W, Class-D

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SSM2518CPZ 数据手册

Digital Input Stereo, 2 W, Class-D

Audio Power Amplifier

Data Sheet

SSM2518

FEATURES

GENERAL DESCRIPTION

Filterless, digital input Class-D amplifier

Serial digital audio interface supports common formats

I²S, left justified, right justified, TDM1-16, and PCM

2 channels × 2 W into 4 Ω and 2 channels × 1.4 W into 8 Ω

with 1% THD+N, when using a 5 V supply

I²C control interface or standalone operation

91% efficiency at full scale into an 8 Ω load

97 dB signal-to-noise ratio (SNR), A-weighted

80 dB power supply rejection ratio (PSRR) at 217 Hz

Digital volume control: −71.25 dB to +24 dB in 0.375 dB steps

Supports a wide range of sample rates from 8 kHz to 96 kHz

Automatic sample rate detection

Can operate using 64 × f_SBCLK as the MCLK source

2.5 V to 5.5 V speaker supply voltage (PVDD)

1.62 V to 3.6 V digital supply voltage (DVDD)

Pop-and-click suppression

Short-circuit and thermal protection with programmable

autorecovery

The SSM2518 is a digital input, Class-D power amplifier that com-

bines a digital-to-analog converter (DAC) and a sigma-delta

(Σ-Δ) Class-D modulator. This unique architecture enables

extremely low real-world power consumption from digital

audio sources with excellent audio performance. The SSM2518

is ideal for power sensitive applications, such as mobile phones

and portable media players, where system noise can corrupt

small analog signals such as those sent to an analog input audio

amplifier.

Using the SSM2518, audio data can be transmitted to the amplifier

over a standard digital audio serial interface, thereby significantly

reducing the effect of noise sources such as GSM interference or

other digital signals on the transmitted audio. The closed-loop

digital input design retains the benefits of an all digital amplifier,

yet enables very good PSRR and audio performance. The three

level, Σ-Δ Class-D modulator is designed to provide the least

amount of EMI interference, the lowest quiescent power dissi-

pation, and the highest audio efficiency without sacrificing

audio quality.

Smart power-down when no input signal is detected

Power-on reset

Input is provided via a serial audio interface, programmable to

accept all common audio formats including I²S and TDM. Control

of the IC is provided via an I²C control interface. The SSM2518

can accept a variety of input MCLK frequencies and can use

BCLK as the clock source in some configurations.

Low power modes for performance/power trade-offs

User selectable ultralow EMI emission mode

Programmable dynamic range compression (DRC) with

noise gate, expander, compressor, and limiter

Available in two packages

16-bump, 2.2 mm × 2.2 mm, 0.5 mm pitch WLCSP

20-lead, 4.0 mm × 4.0 mm LFCSP

Additional features include a soft digital volume control, de-

emphasis, and a programmable digital dynamic range

compressor.

APPLICATIONS

The architecture of the SSM2518 provides a solution that offers

lower power and higher performance than existing DAC plus

Class-D solutions. Its digital interface also offers a better system

solution for other products whose sole audio source is digital,

such as wireless speakers, laptop PCs, portable digital televisions,

and navigation systems.

Mobile phones

Portable media players

Laptop PCs

Wireless speakers

Portable gaming

Small LCD televisions

Navigation systems

Rev. A

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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SSM2518CPZ 替代型号

型号	品牌	替代类型	描述	数据表
SSM2518CPZ-R7	ADI	完全替代	Digital Input Stereo, 2 W, Class-D
NCP2815BFCCT2G	ONSEMI	功能相似	LongPlay Headphone Amplifier
SSM2518CPZ-RL	ADI	功能相似	Digital Input Stereo, 2 W, Class-D

与SSM2518CPZ相关器件

型号	品牌	获取价格	描述	数据表
SSM2518CPZ-R7	ADI	获取价格	Digital Input Stereo, 2 W, Class-D
SSM2518CPZ-RL	ADI	获取价格	Digital Input Stereo, 2 W, Class-D
SSM2519	ADI	获取价格	Digital Input 2 W Class-D Audio Power Amplifier
SSM2519ACBZ-R7	ADI	获取价格	Digital Input 2 W Class-D Audio Power Amplifier
SSM2519ACBZ-RL	ADI	获取价格	Digital Input 2 W Class-D Audio Power Amplifier
SSM2529	ADI	获取价格	Digital Input, Mono 2 W, Class-D Audio Power Amplifier
SSM2529ACBZ-R7	ADI	获取价格	Digital Input, Mono 2 W, Class-D Audio Power Amplifier
SSM2529ACBZ-RL	ADI	获取价格	Digital Input, Mono 2 W, Class-D Audio Power Amplifier
SSM2537	ADI	获取价格	PDN数字输入、单声道2.5 W、D类音频放大器
SSM2537ACBZ-R7	ADI	获取价格	PDM Digital Input, Mono 2.5 W Class D Audio Amplifier

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