LTK5128 Datasheet PDF - LTKCHIP TECHNOLOGY
Part Number | LTK5128 | |
Description | AB / Class D audio amplifier | |
Manufacturers | LTKCHIP TECHNOLOGY | |
Logo | ![]() |
|
There is a preview and LTK5128 download ( pdf file ) link at the bottom of this page. Total 9 Pages |
Preview 1 page No Preview Available !
+ LTK5128 5W AB/D 类音频功放
2014 V1.1
LTK5128
概述概述
LTK5128 是一款5W、单声道AB类/D类工作模式切
换功能、超低EMI、无需滤波器的音频功率放大芯片。 管脚定义
LTK5128通过一个MODE管脚可以方便地切换为AB类
模式,完全消除EMI干扰。工作电压2.5V-5.5V,在D类
SD 1
放大器模式下可以提供高于90%的效率,新型的无滤
波器结构可以省去传统D类放大器的输低通滤波器,
从而节省了系统成本和PCB空间,是便携式应用的理想
选择。LTK5128采用独有的DRC(Dynamic range control)
BYP 2
MODE 3
IN 4
技术,降低了大功率输出时,由于波形切顶带来的失
真,相比同类产品,动态反应更加出色。LTK5128采用
ESOP-8封装。
特点
封装信息
(ESOP8)
8 VOP
7 GND
6 VDD
5 VON
应用
无滤波的 D 类/AB 类放大器、低静态电流和
低 EMI
FM 模式无干扰
优异的爆破声抑制电路
低底噪、低失真
DRC 动态失真矫正电路
10% THD+N,VDD=5V,4Ω 负载下,提供
高达 3W 的输出功率
10% THD+N,VDD=5V,2Ω 负载下,提供
高达 5W 的输出功率
短路电流保护
欠压保护
关断电流 < 0.5uA
多种功率封装模式: ESOP-8
过热保护
蓝牙音箱
拉杆音箱、USB 音响
视频机、扩音器等
产品
LTK5128
封装形
式
ESOP-8
封装尺寸
(mm)
脚间距
(mm)
管脚信息
序号
1
2
3
4
5
6
7
8
符号
SD
BYP
MODE
IN
VON
VDD
GND
VOP
描述
关断控制,高电平有效
内部共模参考电压
高电平 D 类,低电平 AB 类,
默认是 AB 类
模拟输入端,反相
模拟输出端负极
电源正
电源地
模拟输出正极
LTKCHIP TECHNOLOGY
1/9
|
|
![]() ![]() + LTK5128 5W AB/D 类音频功放
2)动态电气参数
MODE=GND, ClassAB 模式,VDD=5V,TA=25℃的条件下:
信号
参数
测试条件
最小值
Po 输出功率
THD+N 总谐波失真加噪声
PSRR 电源电压抑制比
THD+N=10%, f=1kHz VDD=5V
RL=4Ω;
VDD=3.6V
VDD=3V
THD+N=1%, f=1kHz VDD=5V
RL=4Ω;
VDD=3.6V
VDD=3V
THD+N=10%, f=1kHz VDD=5V
RL=2Ω;
VDD=3.6V
VDD=3V
THD+N=1%, f=1kHz VDD=5V
RL=2Ω;
VDD=3.6V
VDD=3V
VDD=5V Po=0.6W, f=1kHz
RL=8Ω
VDD=3.6V Po=0.6W,
RL=8Ω
VDD=5V
f=1kHz
Po=1W,RL=4Ω
VDD=3.6V Po=1W,
RL=4Ω
VDD=5V, VRIPPLE=200mVRMS,
RL=8Ω, CB=2.2µF
SNR 信噪比
VDD=5V, Vorms=1V, Gv=20dB
典型值
2.9
2
1.3
2.6
1.6
0.8
4.9
3.2
2.3
4.5
2.7
1.4
0.18
0.15
0.15
0.12
69
82
2014 V1.1
最大值 单位
W
W
5.5
3.5 W
2.6
4.6
2.9 W
1.5
%
dB
dB
典型工作特性
LTKCHIP TECHNOLOGY
5/9
![]() Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for LTK5128 electronic component. |
Information | Total 9 Pages | |
Link URL | [ Copy URL to Clipboard ] | |
Product Image and Detail view | ![]() 1. Power Amplifier Chip - LTKCHIP [ Learn More ] | |
Download | [ LTK5128.PDF Datasheet ] |
Share Link :
Electronic Components Distributor
An electronic components distributor is a company that sources, stocks, and sells electronic components to manufacturers, engineers, and hobbyists. They offer a wide range of electronic components, including semiconductors, resistors, capacitors, connectors, and many others. Electronic components distributors play a crucial role in the electronics industry by providing easy access to the components. They help customers to save time and money by providing a one-stop-shop for all their component needs. |
SparkFun Electronics | Allied Electronics | DigiKey Electronics | Arrow Electronics |
Mouser Electronics | Adafruit | Newark | Chip One Stop |
Featured Datasheets
Part Number | Description | Manufacturers |
LTK5128 | The function is AB / Class D audio amplifier. | ![]() LTKCHIP TECHNOLOGY |
Semiconductors commonly used in industry: 1N4148 |   BAW56 | 1N5400 | NE555 | LM324 | BC327 | IRF840 | 2N3904 | | ||
Quick jump to:
LTK5
1N4
2N2
2SA
2SC
74H
BC
HCF
IRF
KA |