Datasheet > SSM3515_17

SSM3515_17

更新时间： 2024-12-02 02:51:23

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
41页	1030K
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Audio Amplifier

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SSM3515_17 数据手册

31 W, Filterless, Class-D Digital Input

Audio Amplifier

Data Sheet

SSM3515

FEATURES

GENERAL DESCRIPTION

Filterless digital input, mono Class-D amplifier

Operates from a single 4.5 V to 17 V supply

The SSM3515 is a fully integrated, high efficiency, mono Class-D

audio amplifier with digital inputs. The application circuit

31.3 W output power, 17 V supply, and 4 Ω load at 1% THD + N

107 dB A-weighted signal-to-noise ratio

93.3% efficiency into 8 Ω load at 12 V

requires a minimum of external components and can operate

from a single 4.5 V to 17 V supply. It can deliver 8.4 W of output

power into an 8 Ω load or 15.8 W into an 4 Ω load from a 12 V

power supply, or 31.3 W into an 4 Ω load from a 17 V power

supply, all with 1% THD + N.

I²C control with up to 4 pin selectable slots/addresses

Supports multiple serial data formats up to TDM16

Digital interface supports sample rates from 8 kHz to 192 kHz

Flexible digital and analog gain adjustment

Flexible supply monitoring AGC function

6.55 mA quiescent current with single 17 V PVDD supply

Short-circuit and thermal protection, thermal warning

20-ball, 1.8 mm × 2.2 mm, 0.4 mm pitch WLCSP

Pop and click suppression

The SSM3515 features a high efficiency, low noise modulation

scheme that requires no external LC output filters. This scheme

provides high efficiency even at low output power. It operates

with 92% efficiency at 7 W into an 8 Ω load or 88% efficiency at

15 W into 4 Ω from a 12 V supply.

Spread spectrum pulse density modulation provides lower EMI

radiated emissions compared with other Class-D architectures,

particularly above 100 MHz.

User selectable ultralow EMI emissions mode

Power-on reset

The digital input eliminates the need for an external digital-to-

analog converter (DAC). The SSM3515 has a micropower

shutdown mode with a typical shutdown current of 39 nA at

the 12 V PVDD supply. The device also includes pop and click

suppression circuitry that minimizes voltage glitches at the

output during turn on and turn off.

APPLICATIONS

Notebooks

Portable electronics

Home audio

The SSM3515 operates with or without an I²C control interface.

The SSM3515 is specified over the commercial temperature range

(−40C to +85C). It has built in thermal shutdown and output

short-circuit protection. It is available in a halide-free, 20-ball,

1.8 mm × 2.2 mm wafer-level chip scale package (WLCSP).

FUNCTIONAL BLOCK DIAGRAM

1.8V

VREG50/AVDD VREG18/DVDD

AGND

REG_EN

ADDR

BST+

SCL

SDA

I C

BCLK

FSYNC

SDATA

FULL

BRIDGE

POWER

STAGE

Σ-∆

TDM

DAC

OUT+

OUT–

CLASS-D

VOLUME

I S

MODULATOR

INPUT

BST–

SSM3515

PVDD

PGND

Figure 1.

Rev. A

Document Feedback

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.

Technical Support

www.analog.com

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