EEWORLDEEWORLDEEWORLD

Part Number

Search

FAB3103

Description
New Products, Tips and Tools for Power and Mobile Applications
File Size939KB,13 Pages
ManufacturerFairchild
Websitehttp://www.fairchildsemi.com/
Download Datasheet View All

FAB3103 Overview

New Products, Tips and Tools for Power and Mobile Applications

FAB3103 — 2.3 Watt Class-D Audio Amplifier with Integrated Boost Regulator and Automatic Gain Control
July 2012
FAB3103
2.3 Watt Class-D Audio Amplifier with Integrated
Boost Regulator and Automatic Gain Control
Features
High Output, Low Distortion Class-D Mono
Speaker Amplifier
o
2.3W into 8Ω from 3.6V Supply (10% THD+N)
o
1.85W into 8Ω from 3.6V Supply (1% THD+N)
o
0.01% THD+N into 8Ω (100mW)
High-Efficiency Boost Regulator Provides Higher
Output Power Over Li-Ion Battery Voltages
o
85% Total Efficiency (3.6V, 8Ω, P
O
= 1.0W)
Adaptive Boost Shutdown at Lower Output Power
Increases Efficiency and Reduces Quiescent
Current Consumption:
o
I
DD
= 2.7mA from 3.6V Supply
Automatic Gain Control (AGC) Monitors Battery
Voltage and Dynamically Adjusts Gain, Extending
Battery Runtime
Reduced Noise Floor Enhances Audio Playback
o
38µV Output Noise (A-Weighted)
o
100dB SNR (A-Weighted)
Low-EMI Design Allows Filterless Operation
High-Power Supply Ripple Rejection:
o
88dB PSRR (f
RIPPLE
= 217Hz, Boost Enabled)
o
70dB PSRR (f
RIPPLE
= 217Hz, Boost Bypassed)
High Noise Rejection Using Differential
Audio Inputs:
o
75dB CMRR (f
IN
= 1kHz)
o
71dB CMRR (f
IN
= 217Hz)
Short-Circuit Protection
Under-Voltage Protection
“Click and Pop” Suppression
Available in 12-Bump, 0.5mm Pitch, WLCSP
o
Space-Saving 1.86mm x 1.44mm Package
Description
The FAB3103 is a mono Class-D audio amplifier with
an integrated boost regulator that achieves high output
audio over a power supply range of 2.5V to 5.2V.
Automatic Boost Shutdown dynamically shuts down
the boost regulator at low output power for greater
efficiency and lower quiescent current consumption.
Automatic Gain Control (AGC) monitors the battery
and reduces gain as the battery voltage drops to limit
maximum current consumption, extending battery
runtime and preventing mobile device shutdown.
Applications
Smart Phones, Feature Phones
Tablets, Portable Gaming Devices
GPS, Active Speakers
Figure 1. Typical Application Circuit
Ordering Information
Part Number
FAB3103UCX
Operating Temperature Range
-40°C to +85°C
Package
12-Bump, 0.5mm Pitch, Wafer-Level
Chip-Scale Package (WLCSP)
Packing Method
3000 Units
on Tape & Reel
www.fairchildsemi.com
© 2011 Fairchild Semiconductor
FAB3103 • Rev. 1.0.2
Please tell me about the non-maskable interrupt of MSP430.
I want to ask about the non-maskable interrupt of MSP430. NMI I want to use the RESET pin as the interrupt input pin, but no matter how I try, it doesn't work. Everyone, please check if there is any p...
soniaxiao Microcontroller MCU
MSP430 related information
Here are some information about MSP430. Take whatever is useful....
B162 Microcontroller MCU
Is the signal output by the LLC of SAA7113 a square wave or some other waveform?
Is the signal output by the LLC of SAA7113 a square wave or some other waveform? I found that the signal output by my LLC is a sawtooth wave. Do you think this waveform is correct?...
ligang830526 Embedded System
EEWORLD University Hall - Engineering Innovation for Tomorrow
Engineering Innovation for Tomorrow : https://training.eeworld.com.cn/course/3994...
橙色凯 Industrial Control Electronics
How to upload data?
I recently made a serial port tool using PL2303 and want to share data. How do I upload attachments?...
xmfsm stm32/stm8

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2884  317  1616  1292  1038  59  7  33  27  21 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号