Datasheet > SSM2377ACBZ-R7

SSM2377ACBZ-R7

更新时间： 2024-11-03 09:04:55

品牌	Logo	应用领域
亚德诺 - ADI		音频放大器
页数	文件大小	规格书
16页	474K
描述
Filterless, High Efficiency, Mono 2.5 W Class-D Audio Amplifier Pop-and-click suppression

阅读下载

中文翻译

获取价格

数据手册
替代型号

如果您发现信息不准确，欢迎纠错

SSM2377ACBZ-R7 数据手册

Filterless, High Efficiency,

Mono 2.5 W Class-D Audio Amplifier

SSM2377

The SSM2377 operates with 92% efficiency at 1.4 W into 8 Ω

from a 5.0 V supply and has an SNR of >100 dB.

FEATURES

Filterless, Class-D amplifier with spread-spectrum

Σ-Δ modulation

Spread-spectrum pulse density modulation (PDM) is used to

provide lower EMI-radiated emissions compared with other

Class-D architectures. The inherent randomized nature of

spread-spectrum PDM eliminates the clock intermodulation

(beating effect) of several amplifiers in close proximity.

2.5 W into 4 Ω load and 1.4 W into 8 Ω load at 5.0 V supply

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

92% efficiency at 5.0 V, 1.4 W into 8 Ω speaker

>100 dB signal-to-noise ratio (SNR)

High PSRR at 217 Hz: 80 dB

The SSM2377 produces ultralow EMI emissions that signifi-

cantly reduce the radiated emissions at the Class-D outputs,

particularly above 100 MHz. The SSM2377 passes FCC Class B

radiated emission testing with 50 cm, unshielded speaker cable

without any external filtering. The ultralow EMI emissions of the

SSM2377 are also helpful for antenna and RF sensitivity problems.

Ultralow EMI emissions

Single-supply operation from 2.5 V to 5.5 V

Gain select function: 6 dB or 12 dB

Fixed input impedance of 80 kΩ

100 nA shutdown current

Short-circuit and thermal protection with autorecovery

Available in a 9-ball, 1.2 mm × 1.2 mm WLCSP

Pop-and-click suppression

The device is configured for either a 6 dB or a 12 dB gain setting

by connecting the GAIN pin to the VDD pin or the GND pin,

respectively. Input impedance is a fixed value of 80 kΩ, indepen-

dent of the gain select operation.

APPLICATIONS

Mobile phones

MP3 players

Portable electronics

The SSM2377 has a micropower shutdown mode with a typical

shutdown current of 100 nA. Shutdown is enabled by applying

a logic low to the

pin.

GENERAL DESCRIPTION

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

which minimizes voltage glitches at the output during turn-on

and turn-off, reducing audible noise on activation and deactivation.

Built-in input low-pass filtering is also included to suppress out-

of-band noise interference to the PDM modulator.

The SSM2377 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 2.5 W of continuous output power

with <1% THD + N driving a 4 Ω load from a 5.0 V supply.

The SSM2377 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 halide-free, 9-ball, 0.4 mm

pitch, 1.2 mm × 1.2 mm wafer level chip scale package (WLCSP).

The SSM2377 features a high efficiency, low noise modulation

scheme that requires no external LC output filters. The modu-

lation operates with high efficiency even at low output power.

FUNCTIONAL BLOCK DIAGRAM

POWER SUPPLY

2.5V TO 5.5V

10µF

0.1µF

VDD

SSM2377

22nF

80kΩ

OUT+

AUDIO IN–

FET

DRIVER

MODULATOR

IN+

80kΩ

OUT–

GND

(Σ-Δ)

AUDIO IN+

IN–

22nF

INTERNAL

OSCILLATOR

POP/CLICK

AND EMI

SUPPRESSION

BIAS

SHUTDOWN

GAIN

GAIN SELECT

GAIN = 6dB OR 12dB

Figure 1.

Rev. 0

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

12 3 4 5 6 7...16

中文翻译

下载PDF

SSM2377ACBZ-R7 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
SSM2315CBZ-REEL7	ADI	类似代替	Filterless, High Efficiency, Mono 3 W Class-D Audio Amplifier
SSM2317CBZ-REEL7	ADI	类似代替	Filterless High Efficiency Mono 3 W Class-D Audio Amplifier

与SSM2377ACBZ-R7相关器件

型号	品牌	获取价格	描述	数据表
SSM2377ACBZ-RL	ADI	获取价格	Filterless, High Efficiency, Mono 2.5 W Class-D Audio Amplifier Pop-and-click suppression
SSM2380	ADI	获取价格	Filterless, Stereo, Class-D Audio Amplifier
SSM2380CBZ-REEL	ADI	获取价格	2 x 2 W, Filterless, Stereo, Class-D Audio Amplifier with ALC + I2C
SSM2380CBZ-REEL7	ADI	获取价格	2 x 2 W, Filterless, Stereo, Class-D Audio Amplifier with ALC + I2C
SSM23LPT	CHENMKO	获取价格	SCHOTTKY BARRIER RECTIFIER
SSM23PT	CHENMKO	获取价格	SCHOTTKY BARRIER RECTIFIER
SSM2402	ADI	获取价格	Dual Audio Analog Switches
SSM-2402	ADI	获取价格	Dual Audio Analog Switches
SSM2402_15	ADI	获取价格	Dual Audio Analog Switches
SSM2402P	ADI	获取价格	Dual Audio Analog Switches

与SSM2377ACBZ-R7相关文章

英伟达新AI芯片Rubin或提前半年亮相
2024-11-05

12
苹果iPhone 17将全系采用三星/LG显示LTPO OLED面板
2024-11-05

5
三星深化印度制造布局，供应链本地化进程加速
2024-10-29

28
芯擎科技“星辰一号”自动驾驶芯片点亮成功，2025年量产在即
2024-10-29

27

产品中心

服务支持

精选活动

关于我们

帮助中心

SSM2377ACBZ-R7

SSM2377ACBZ-R7 数据手册

SSM2377ACBZ-R7 替代型号

与SSM2377ACBZ-R7相关器件

与SSM2377ACBZ-R7相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

SSM2377ACBZ-R7

SSM2377ACBZ-R7 数据手册

SSM2377ACBZ-R7 替代型号

与SSM2377ACBZ-R7相关器件

与SSM2377ACBZ-R7相关文章

您还可以找

您在本页遇到什么问题？