SSM2518CBZ-R7 Analog Devices, SSM2518CBZ-R7 Datasheet

SSM2518CBZ-R7

Manufacturer Part Number

SSM2518CBZ-R7

Description

Manufacturer

Analog Devices

Datasheet

1.SSM2518.pdf (48 pages)

Specifications of SSM2518CBZ-R7

Pack_quantity

3000

Comm_code

85423300

Lead_time

Eccn

EAR99

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Data Sheet

FEATURES

Filterless, digital input Class-D amplifier

Serial digital audio interface supports common formats

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

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

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

Smart power-down when no input signal is detected

Power-on reset

Low power modes for performance/power trade-offs

User selectable ultralow EMI emission mode

Programmable dynamic range compression (DRC) with

Available in two packages

APPLICATIONS

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 registered trademarks are the property of their respective owners.

C control interface or standalone operation

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

autorecovery

noise gate, expander, compressor, and limiter

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

20-lead, 4.0 mm × 4.0 mm LFCSP

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

BCLK as the MCLK source

Digital Input Stereo, 2 W, Class-D

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

Tel: 781.329.4700

Fax: 781.461.3113

GENERAL DESCRIPTION

The

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

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.

Input is provided via a serial audio interface, programmable to

accept all common audio formats including I

of the IC is provided via an I

can accept a variety of input MCLK frequencies and can use

BCLK as the clock source in some configurations.

Additional features include a soft digital volume control, de-

emphasis, and a programmable digital dynamic range

compressor.

The architecture of the

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.

SSM2518

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

Audio Power Amplifier

SSM2518

C control interface. The

provides a solution that offers

S and TDM. Control

SSM2518

www.analog.com

SSM2518

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