Datasheet > SSM2315CBZ-REEL7

SSM2315CBZ-REEL7

更新时间： 2024-11-29 14:36:19

品牌	Logo	应用领域
亚德诺 - ADI		放大器商用集成电路
页数	文件大小	规格书
17页	450K
描述
Filterless, High Efficiency, Mono 3 W Class-D Audio Amplifier

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SSM2315CBZ-REEL7 数据手册

Filterless, High Efficiency,

Mono 3 W Class-D Audio Amplifier

SSM2315

The SSM2315 features a high efficiency, low noise modulation

scheme that requires no external LC output filters. The modulation

continues to provide high efficiency even at low output power.

It operates with 93% efficiency at 1.4 W into 8 Ω or 85% efficiency

at 3 W into 3 Ω from a 5.0 V supply and has an SNR of >103 dB.

Spread-spectrum pulse density modulation is used to provide

lower EMI-radiated emissions compared with other Class-D

architectures.

FEATURES

Filterless Class-D amplifier with Σ-Δ modulation

No sync necessary when using multiple Class-D amplifiers

from Analog Devices, Inc.

3 W into 3 Ω load and 1.4 W into 8 Ω load at 5.0 V supply

with <1% total harmonic distortion (THD + N)

93% efficiency at 5.0 V, 1.4 W into 8 Ω speaker

>103 dB signal-to-noise ratio (SNR)

Single-supply operation from 2.5 V to 5.5 V

20 nA ultralow shutdown current

Short-circuit and thermal protection

Available in 9-ball, 1.5 mm × 1.5 mm WLCSP

Pop-and-click suppression

Built-in resistors reduce board component count

Default fixed 6 dB or user adjustable gain setting

The SSM2315 has a micropower shutdown mode with a typical

shutdown current of 20 nA. Shutdown is enabled by applying

a logic low to the

pin.

The device also includes pop-and-click suppression circuitry.

This suppression circuitry minimizes voltage glitches at the

output during turn-on and turn-off, reducing audible noise

on activation and deactivation.

APPLICATIONS

Mobile phones

MP3 players

Portable gaming

Portable electronics

Educational toys

The fully differential input of the SSM2315 provides excellent

rejection of common-mode noise on the input. Input coupling

capacitors can be omitted if the dc input common-mode voltage

is approximately V_DD/2.

The default gain of the SSM2315 is 6 dB, but users can reduce the

gain by using a pair of external resistors (see the Gain section).

GENERAL DESCRIPTION

The SSM2315 is a fully integrated, high efficiency, Class-D audio

amplifier. It is designed to maximize performance for mobile

phone applications. The application circuit requires a minimum

of external components and operates from a single 2.5 V to 5.5 V

supply. It is capable of delivering 3 W of continuous output power

with <1% THD + N driving a 3 Ω load from a 5.0 V supply.

The SSM2315 is specified over the industrial temperature range of

−40°C to +85°C. It has built-in thermal shutdown and output

short-circuit protection. It is available in a 9-ball, 1.5 mm × 1.5 mm

wafer level chip scale package (WLCSP).

FUNCTIONAL BLOCK DIAGRAM

0.1µF

10µF

VBATT

2.5V TO 5.5V

VDD

SSM2315

160kΩ

47nF*

80kΩ

IN+

IN–

OUT+

OUT–

AUDIO IN+

AUDIO IN–

MODULATOR

FET

DRIVER

(Σ-Δ)

47nF*

160kΩ

INTERNAL

OSCILLATOR

POP/CLICK

SUPPRESSION

BIAS

SHUTDOWN

GND

*INPUT CAPS ARE OPTIONAL IF INPUT DC COMMON-MODE

VOLTAGE IS APPROXIMATELY V /2.

Figure 1.

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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SSM2315CBZ-REEL7 替代型号

型号	品牌	替代类型	描述	数据表
SSM2335CBZ-R2	ADI	完全替代	Filterless, High Efficiency, Mono 3 W Class-D Audio Amplifier
SSM2377ACBZ-R7	ADI	类似代替	Filterless, High Efficiency, Mono 2.5 W Class-D Audio Amplifier Pop-and-click suppression
SSM2317CBZ-REEL7	ADI	类似代替	Filterless High Efficiency Mono 3 W Class-D Audio Amplifier

与SSM2315CBZ-REEL7相关器件

型号	品牌	获取价格	描述	数据表
SSM2315CBZ-REEL71	ADI	获取价格	Filterless, High Efficiency, Mono 3 W Class-D Audio Amplifier
SSM2315-EVALZ1	ADI	获取价格	Filterless, High Efficiency, Mono 3 W Class-D Audio Amplifier
SSM2316GN	SSC	获取价格	N-channel Enhancement-mode Power MOSFET
SSM2317	ADI	获取价格	Filterless High Efficiency Mono 3 W Class-D Audio Amplifier
SSM2317CBZ-REEL	ADI	获取价格	Filterless High Efficiency Mono 3 W Class-D Audio Amplifier
SSM2317CBZ-REEL7	ADI	获取价格	Filterless High Efficiency Mono 3 W Class-D Audio Amplifier
SSM2317-EVALZ	ADI	获取价格	Filterless High Efficiency Mono 3 W Class-D Audio Amplifier
SSM2317-MINI-EVALZ	ADI	获取价格	Filterless High Efficiency Mono 3 W Class-D Audio Amplifier
SSM2318GEN	SSC	获取价格	N-channel Enhancement-mode Power MOSFET
SSM2319	ADI	获取价格	Filterless, High Efficiency, Mono 3 W Class-D Audio Amplifier

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