Datasheet > MAX98365

MAX98365

更新时间： 2024-11-08 14:57:35

品牌	Logo	应用领域
亚德诺 - ADI		放大器
页数	文件大小	规格书
45页	3078K
描述
小尺寸、高性价比14V即插即用数字D类放大器

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MAX98365 数据手册

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Tiny, Cost-Effective, 14V Plug-and-Play

Digital Class-D Amplifier

MAX98365

General Description

Benefits and Features

The MAX98365 is an easy-to-use, low-cost, digital input

Class-D amplifier that provides industry-leading, Class-AB

audio performance with Class-D efficiency. The digital au-

dio interface automatically recognizes different PCM and

● Simple Plug-and-Play Design

● Wide Amplifier Supply Range (3V to 14V)

● 13.8W Output Power into 8Ω at 14V

● 17.6W Output Power into 6Ω at 14V

● 30mW Quiescent Power

TDM clocking schemes which eliminates the need for I C

programming: Simply supply power, LRCLK, BCLK, and

digital audio to generate sound. Furthermore, a novel

pinout allows customers to use the cost-effective wafer-

level package (WLP) with no need for expensive in-pad

vias. A wide 3V to 14V supply range allows the device to

deliver 13.8W into an 8Ω load.

● 1ms Turn-On Time (for MAX98365A and

MAX98365B)

● 92.7% Efficiency (7.0W into R = 8Ω, PVDD = 12V)

● 22μV

Output Noise

RMS

● 111.5dB Dynamic Range

● -85dB THD+N at 1kHz

● No MCLK Required

● Sample Rates of 8kHz to 192kHz

● Supports Left, Right, or (Left/2 + Right/2) Output in I S

and Left-Justified Modes

● Sophisticated Edge Rate Control Enables Filterless

Class-D Outputs

● Low 0.5μA Shutdown Current

● Low RF Susceptibility Rejects TDMA Noise from GSM

Radios

● Class-D Switching Frequency Trimmed to 6% for

Better EMI Planning

The digital audio interface is highly flexible. The devices

support I S, left-justified, and 8-channel time division mul-

tiplexed (TDM) data formats. The digital audio interface

accepts 8kHz, 16kHz, 32kHz, 44.1kHz, 48kHz, 88.2kHz,

96kHz, 176.4kHz, and 192kHz sample rates. Data words

can be 16-bit, 24-bit, or 32-bit in I S and left-justified

modes and 16-bit or 32-bit in TDM mode.

Digital audio interface input thresholds are ideal for inter-

facing to 1.2V and 1.8V logic. The devices can tolerate

logic input voltages up to 5.5V.

● Extensive Click-and-Pop Reduction Circuitry

● Robust Short-Circuit and Thermal Protection

● Available in Space-Saving Package: 12 Bump, WLP

(1.21mm x 1.78mm, 0.4mm Pitch)

The MAX98365A and MAX98365B have fast 1ms turn-on

times while the MAX98365C and MAX98365D ramp the

volume over 13ms during turn-on and turn-off.

The devices eliminate the need for the external MCLK sig-

nal that is typically used for PCM communication. This re-

duces EMI and possible board coupling issues in addition

to reducing the size and pin count. The devices also fea-

ture a very high wideband jitter tolerance (12ns, typ) on

BCLK and LRCLK to provide robust operation.

Active emissions-limiting, edge-rate limiting, and over-

shoot control circuitry greatly reduce EMI. A filterless

spread-spectrum modulation scheme eliminates the need

for output filtering found in traditional Class-D devices and

reduces the component count of the solution.

The devices are specified over the -40°C to +85°C tem-

perature range.

Applications

● Smart Speakers

● Notebook Computers

● IoT Devices

● Gaming Devices (Audio and Haptics)

● Smartphones

● Tablets

● Cameras

19-101279; Rev 1; 1/22

Ordering Information appears at end of data sheet.

12 3 4 5 6 7...45

中文翻译

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与MAX98365相关器件

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MAX98371EWV+T	MAXIM	获取价格	Volume Control Circuit
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MAX98372_V01	MAXIM	获取价格	Digital Input Class D Amplifier with DHT and Brownout Protection
MAX98372ETJ+	MAXIM	获取价格	Digital Input Class D Amplifier with DHT and Brownout Protection
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MAX98372EWV+	MAXIM	获取价格	Digital Input Class D Amplifier with DHT and Brownout Protection
MAX98372EWV+T	MAXIM	获取价格	Digital Input Class D Amplifier with DHT and Brownout Protection
MAX98374	ADI	获取价格	带DHT的数字输入D类放大器
MAX98374EFF+	MAXIM	获取价格	Audio Amplifier,

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