Datasheet > MAX98374EFF+

MAX98374EFF+

更新时间： 2024-11-29 20:04:31

品牌	Logo	应用领域
美信 - MAXIM		放大器商用集成电路
页数	文件大小	规格书
129页	3146K
描述
Audio Amplifier,

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技术参数
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MAX98374EFF+ 技术参数

是否Rohs认证：	符合	生命周期：	Active
包装说明：	,	Reach Compliance Code：	compliant
Factory Lead Time：	24 weeks	风险等级：	2.23
商用集成电路类型：	AUDIO AMPLIFIER	峰值回流温度（摄氏度）：	NOT SPECIFIED
处于峰值回流温度下的最长时间：	NOT SPECIFIED	Base Number Matches：	1

MAX98374EFF+ 数据手册

EVALUATION KIT AVAILABLE

Click here for production status of speciﬁc part numbers.

MAX98374

Digital Input Class D Speaker Ampliﬁer with DHT

General Description

Beneﬁts and Features

● Wide Input Supply Range (5.5V to 16V)

The MAX98374 is a high-efficiency, mono Class D

speaker amplifier featuring dynamic headroom tracking

(DHT) and brownout protection. As the power-supply volt-

age varies due to sudden transients and declining battery

life, DHT automatically optimizes the headroom available

to the Class D amplifier to maintain a consistent listening

experience. A wide 5.5V to 16V supply range allows the

device to exceed 16W into an 8Ω load.

● Dynamic Headroom Tracking (DHT) Maintains a

Consistent Listening Experience

● Integrated Thermal Protection and Output Foldback

● Remote Output Sensing Allows up to 20dB THD+N

Improvement with Ferrite Bead Filters

● Class D EMI Reduction Enables Filterless Operation

• Active Emissions Limiting (AEL)

The flexible digital interface supports either the MIPI

• Spread-Spectrum Modulation (SSM)

• Switching Edge Rate Control

SoundWire compatible interface for audio and control

data, or the PCM interface for audio data and a standard

I C interface for control data. The PCM interface supports

● 110dB A-Weighted Dynamic Range

● 0.006% THD+N at 3W into 8Ω, f = 1kHz

● 0.025% THD+N at 3W into 8Ω, f = 6kHz

● Output Power at 1% THD+N:

I S, left-justified, and TDM audio data formats at 16-, 32-,

44.1-, 48-, 88.2-, and 96kHz sample rates with 16-, 24-,

and 32-bit data. In TDM mode, the device can support up

to 16 channels of audio data. A unique clocking structure

eliminates the need for an external master clock for PCM

communication, which reduces pin count and simplifies

board layout.

• 13.5W into 8Ω, V

• 12.5W into 4Ω, V

= 16V

= 12V

PVDD

● Output Power at 10% THD+N:

Active emissions limiting (AEL), spread spectrum modula-

tion (SSM), and edge rate control minimize EMI and elimi-

nate the need for the output filtering found in traditional

Class D devices.

• 16.9W into 8Ω, V

• 15.3W into 4Ω, V

= 16V

= 12V

PVDD

● Speaker Amplifier Efficiency:

• 90.5% at 10W into 8Ω, V

• 81% at 15.3W into 4Ω, V

= 12V

PVDD

Thermal foldback protection ensures robust behavior

when the thermal limits of the device are reached. When

enabled, it automatically reduces the output power when

the temperature exceeds a user specified threshold. This

allows for uninterrupted music playback even at high

ambient temperatures. Traditional thermal protection is

also available in addition to robust overcurrent protection.

● BDE Provides Supply Brownout Protection

● Extensive Click-and-Pop Suppression

● Space Saving Packages

• 25-Bump WLP (2.17mm x 2.25mm x 0.64mm,

0.4mm Pitch)

A flexible brownout-detection engine (BDE) can be

programmed to initiate various gain reductions, signal

limiting, and clip functions based on supply voltage sta-

tus. Threshold, hysteresis, and attack/release rates are

programmable.

• 22-Pin FCQFN (3mm x 3mm x 0.55mm,

0.4mm Pitch)

Applications

● Tablets

● Notebook Computers

● Sound Bars

The device is available in a 0.4mm pitch, 25-bump wafer-

level package (WLP), or in a 0.4mm pitch, 22-pin FCQFN

package. The device operates over the extended -40°C to

+85°C temperature range.

Ordering Information appears at end of data sheet.

MIPI SoundWire is a registered trademark of MIPI Alliance, Inc.

19-100262; Rev 0; 3/18

12 3 4 5 6 7...129

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与MAX98374EFF+相关器件

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