Datasheet > MAX98307_1108

MAX98307_1108

更新时间： 2024-11-07 11:14:11

品牌	Logo	应用领域
美信 - MAXIM		音频放大器
页数	文件大小	规格书
20页	3309K
描述
3.3W Mono Class DG Multilevel Audio Amplifier

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MAX98307_1108 数据手册

19-5848; Rev 1; 8/11

E V A L U A T I O N K I T A V A I L A B L E

MAX98307/MAX98308

3.3W Mono Class DG Multilevel Audio Amplifier

General Description

Benefits and Features

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.

S High Efficiency Combined with High Output Power

ꢀClass DG Multilevel Modulation Ensures

Maximum Efficiency Over Wide Output Power

Range

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.

S Improves Battery Life

ꢀLow 1.85mA Quiescent Current

S High Output Power at 1% THD+N

ꢀ1.54W at V

ꢀ2.85W at V

= 3.6V, 8I + 68µH Load

= 5V, 8I + 68µH Load

PVDD

The ICs combine Maxim’s active emissions limiting edge

rate and overshoot control circuitry with multilevel out-

put modulation to greatly reduce EMI. These features

eliminate the need for output filtering as compared to

traditional Class D devices, reducing component count

and cost.

S High Output Power at 10% THD+N

ꢀ1.77W at V = 3.6V, 8I + 68µH Load

PVDD

ꢀ3.3W at V

= 5V, 8I + 68µH Load

PVDD

S 84% Efficiency (V

= 3.6V, at 500mW Output)

PVDD

S 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 -40NC to +85NC temperature range.

S Integrated Charge Pump and High Efficiency

Results in Small Solution Size

S Excellent RF Immunity

S Click-and-Pop Suppression

S Thermal and Overcurrent Protection

S Low-Current Shutdown Mode

Applications

Cellular Phones

Smartphones

VoIP Phones

Portable Audio

Tablet PCs

Ordering Information appears at end of data sheet.

Notebook Computers

For related parts and recommended products to use with this part,

refer to www.maxim-ic.com/MAX98307.related.

Simplified Block Diagrams

SHDN

PVDD PVSS SVSS

CHARGE PUMP

GAIN

SHDN

PVDD

PVSS

C1P

C1N

FB+

C1P

C1N

CHARGE PUMP

MAX98308

MAX98307

OUT+

OUT-

IN+

IN-

OUT+

OUT-

IN+

IN-

CLASS DG

AMPLIFIER

CLASS DG

AMPLIFIER

FB-

GND

PGND

GND

PGND

�� Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...20

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与MAX98307_1108相关器件

型号	品牌	获取价格	描述	数据表
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
MAX98308EWC+	MAXIM	获取价格	3.3W Mono Class DG Multilevel Audio Amplifier

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