TFA9882UK

更新时间： 2024-11-14 08:49:55

品牌	Logo	应用领域
恩智浦 - NXP		消费电路商用集成电路音频放大器视频放大器
页数	文件大小	规格书
31页	984K
描述
3.4 W I2S input mono class-D audio amplifier

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技术参数
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TFA9882UK 技术参数

生命周期：	Obsolete	零件包装代码：	BGA
包装说明：	VFBGA,	针数：	9
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.33.00.01	风险等级：	5.82
Is Samacsys：	N	商用集成电路类型：	AUDIO AMPLIFIER
谐波失真：	10%	JESD-30 代码：	R-PBGA-B9
长度：	1.491 mm	信道数量：	1
功能数量：	1	端子数量：	9
最高工作温度：	85 °C	最低工作温度：	-40 °C
标称输出功率：	3.4 W	封装主体材料：	PLASTIC/EPOXY
封装代码：	VFBGA	封装形状：	RECTANGULAR
封装形式：	GRID ARRAY, VERY THIN PROFILE, FINE PITCH	认证状态：	Not Qualified
座面最大高度：	0.6 mm	最大供电电压 (Vsup)：	5.5 V
最小供电电压 (Vsup)：	2.5 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子形式：	BALL
端子节距：	0.4 mm	端子位置：	BOTTOM
宽度：	1.27 mm	Base Number Matches：	1

TFA9882UK 数据手册

TFA9882

3.4 W I2S input mono class-D audio amplifier

Rev. 2 — 20 April 2011

Product data sheet

1. General description

The TFA9882 is a mono, filter-free class-D audio amplifier in a 9-bump WLCSP (Wafer

Level Chip-Size Package) with a 400 μm pitch.

It receives audio and control settings via an I²S digital interface. The Power-down to

Operating mode transition is triggered when a clock signal is detected on the bit clock

input (BCK). Two devices can be combined to build a stereo application.

In stereo applications, the left or right I²S audio stream is selected by connecting the word

select signal to, respectively, pin WSL or pin WSR. Mono mixing can be achieved by

connecting the word select signal to both WSL and WSR. Switching off the word select

signal selects Mute mode.

The device features low RF susceptibility because it has a digital input interface that is

insensitive to clock jitter. The second order closed loop architecture used in the TFA9882

provides excellent audio performance and high supply voltage ripple rejection.

2. Features and benefits

Small outline WLCSP9 package: 1.27 × 1.49 × 0.6 mm

Wide supply voltage range (fully operational from 2.5 V to 5.5 V)

High efficiency (90 %, 4 Ω/20 μH load) and low power dissipation

Quiescent power:

6.5 mW (V_DDD= 1.8 V, V_DDP= 3.6 V, 4 Ω/20 μH load, f_s= 32 kHz)

7.65 mW (V_DDD= 1.8 V, V_DDP= 3.6 V, 4 Ω/20 μH load, f_s= 48 kHz)

Output power:

1.4 W into 4 Ω at 3.6 V supply (THD = 1 %)

2.7 W into 4 Ω at 5.0 V supply (THD = 1 %)

3.4 W into 4 Ω at 5.0 V supply (THD = 10 %)

Output noise voltage: 24 μV (A-weighted)

Signal-to-noise ratio: 103 dB (V_DDP= 5 V, A-weighted)

Fully short-circuit proof across load and to supply lines

Current limiting to avoid audio holes

Thermally protected

Undervoltage and overvoltage protection

High-pass filter for DC blocking

Simplified interface for audio and control settings

Left/right selection and mono mixing

Three gain settings: −3 dB, 0 dB and +3 dB

12 3 4 5 6 7...31

中文翻译

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