Datasheet > DA7202

DA7202

更新时间： 2024-11-26 01:18:07

品牌	Logo	应用领域
DIALOG		电池
页数	文件大小	规格书
25页	1032K
描述
10 W Mono Class-D Amplifier for 2S Battery Devices

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DA7202 数据手册

DA7202

10 W Mono Class-D Amplifier for 2S Battery Devices

Company confidential

General description

DA7202 is a powerful, high efficiency, low EMI Class-D speaker driver that can drive 10 W into 4 Ω

loads directly from a 2S lithium ion battery pack.

DA7202 is a standalone high performance mono Class-D audio amplifier targeted at powering a

variety of two cell portable applications such as Ultrabooks™ and tablets.

It uses a fully-differential switched mode amplifier architecture with a fixed +18 dB gain, with

differential analogue inputs. It also has a PWM modulator and an H-bridged switched power output

stage that delivers 8 W into an 8 Ω load, making a speaker sound louder on portable devices.

The DA7202 can be directly connected between the two-cell battery and the speaker. Noise

suppression circuitry to reduce audible pops and clicks at the speaker output is also included.

Available as a 9-bump WL-CSP package with 0.5 mm pitch that is suited to low cost PCB

technology, it is ideal for portable applications that require small footprints.

Key features

■

PRMS: 3.8 W into 8 Ω load

at 8.2 V, 1% THD+N

■

Auto-Shutdown/Start-up: <3.5 ms

Ultra low standby current: 7 µA

■

Efficiency: 90% @ P_OUT= 3.5 W

at 8.2 V, 8 Ω and 85%@P_OUT= 7.0 W

at 8.2 V, 4 Ω

Short-Circuit & Thermal-Overload Protection

with auto recovery

■

Wide supply voltage range 4.5 to 9.0 V

9-bump WL-CSP with 0.5 mm pitch

2S battery pack

■

Supports 4 Ω and 8 Ω loads

SNR (A-weighted) 104 dB

THD+N: 90 dB @ 3.0 W, 8.2 V, 8 Ω

PSRR: 78 dB

Applications

■

Tablets

■

Speaker accessories

Personal navigation devices

Ultrabooks™

Handheld gaming devices

Datasheet

Revision 3a

20-Aug-2015

CFR0011-120-00 Rev 5

1 of 25

12 3 4 5 6 7...25

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