Datasheet > MAX98307

MAX98307

更新时间： 2024-11-30 14:58:23

品牌	Logo	应用领域
亚德诺 - ADI		放大器
页数	文件大小	规格书
19页	1526K
描述
3.3W、单声道、DG类多电平扬声器放大器

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中文翻译

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MAX98307 数据手册

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MAX98307/MAX98308

3.3W Mono Class DG Multilevel Audio Amplifier

General Description

Beneﬁts and Features

● High Efficiency Combined with High Output Power

• Class DG Multilevel Modulation Ensures Maximum

Efﬁciency Over Wide Output Power Range

The MAX98307/MAX98308 fully differential mono Class

DG multilevel power amplifiers with integrated inverting

charge pumps offer highly efficient, high-power audio

solutions for portable applications.

● Improves Battery Life

• Low 1.85mA Quiescent Current

Class DG multilevel modulation extends the dynamic

range of the output signal by employing a charge-pump-

generated negative rail as needed to extend the supply

range. This scheme results in high efficiency over a wide

output power range.

● High Output Power at 1% THD+N

• 1.54W at V

• 2.85W at V

= 3.6V, 8Ω + 68μH Load

= 5V, 8Ω + 68μH Load

PVDD

● High Output Power at 10% THD+N

• 1.77W at V = 3.6V, 8Ω + 68μH Load

The ICs combine Maxim’s active emissions limiting edge

rate and overshoot control circuitry with multilevel output

modulation to greatly reduce EMI. These features elimi-

nate the need for output filtering as compared to tradition-

al Class D devices, reducing component count and cost.

PVDD

• 3.3W at V

= 5V, 8Ω + 68μH Load

PVDD

● 84% Efficiency (V

= 3.6V, at 500mW Output)

PVDD

● Active Emissions Limiting and Class DG Multilevel

Output Modulation Eliminates EMI Output Filtering

Requirement

The MAX98307’s 16-pin TQFN package features an

adjustable gain set by external resistors. The MAX98308’s

space-saving 12-bump WLP package features an inter-

nally fixed gain of 8.5dB, 11.5dB, 14.5dB, 17.5dB, and

20.5dB set by a single gain input. Both devices operate

over the extended -40°C to +85°C temperature range.

● Integrated Charge Pump and High Efficiency Results

in Small Solution Size

● Excellent RF Immunity

● Click-and-Pop Suppression

● Thermal and Overcurrent Protection

● Low-Current Shutdown Mode

Applications

● Cellular Phones

● Smartphones

● Notebook Computers

● VoIP Phones

● Portable Audio

● Tablet PCs

Ordering Information appears at end of data sheet.

Simpliﬁed Block Diagrams

SHDN

PVDD PVSS SVSS

CHARGE PUMP

GAIN

SHDN

PVDD

PVSS

C1P

C1N

FB+

C1P

C1N

MAX98308

CHARGE PUMP

MAX98307

OUT+

OUT-

IN+

IN-

OUT+

OUT-

IN+

IN-

CLASS DG

AMPLIFIER

CLASS DG

AMPLIFIER

FB-

GND PGND

19-5848; Rev 7; 4/20

12 3 4 5 6 7...19

中文翻译

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与MAX98307相关器件

型号	品牌	获取价格	描述	数据表
MAX98307_1108	MAXIM	获取价格	3.3W Mono Class DG Multilevel Audio Amplifier
MAX98307_1109	MAXIM	获取价格	3.3W Mono Class DG Multilevel Audio Amplifier
MAX98307_12	MAXIM	获取价格	3.3W Mono Class DG Multilevel Audio Amplifier
MAX98307ETE	MAXIM	获取价格	3.3W Mono Class DG Multilevel Audio Amplifier
MAX98307ETE/V+	MAXIM	获取价格	Audio Amplifier, PQCC16,
MAX98307ETE/V+T	MAXIM	获取价格	Audio Amplifier, PQCC16,
MAX98307ETE+	MAXIM	获取价格	3.3W Mono Class DG Multilevel Audio Amplifier
MAX98307ETE+T	MAXIM	获取价格	Audio Amplifier, 3.3W, 1 Channel(s), 1 Func, TQFN-16
MAX98308	MAXIM	获取价格	3.3W Mono Class DG Multilevel Audio Amplifier
MAX98308EWC	MAXIM	获取价格	3.3W Mono Class DG Multilevel Audio Amplifier

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