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LM49450SQX/NOPB

更新时间： 2024-02-26 17:27:30
品牌 Logo 应用领域
德州仪器 - TI 放大器商用集成电路
页数 文件大小 规格书
42页 1037K
描述
Boomer I2S Input, 2.5W/Channel, Low EMI, Stereo, Class D Audio Sub-System with Ground Referenced Headphone Amplifier, 3D Enhancement, and Headphone Sense

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LM49450SQX/NOPB 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active包装说明：HVQCCN, LCC28,.2SQ,20
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：8 weeks
风险等级：5.48商用集成电路类型：AUDIO AMPLIFIER
JESD-30 代码：S-PQCC-N32JESD-609代码：e3
长度：5 mm湿度敏感等级：1
功能数量：2端子数量：28
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：HVQCCN
封装等效代码：LCC28,.2SQ,20封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：260
电源：3.6/5 V认证状态：Not Qualified
筛选级别：AEC-Q100座面最大高度：0.8 mm
子类别：Audio/Video Amplifiers最大供电电压 (Vsup)：5.5 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn)端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：5 mm
Base Number Matches：1

LM49450SQX/NOPB 数据手册

 浏览型号LM49450SQX/NOPB的Datasheet PDF文件第4页浏览型号LM49450SQX/NOPB的Datasheet PDF文件第5页浏览型号LM49450SQX/NOPB的Datasheet PDF文件第6页浏览型号LM49450SQX/NOPB的Datasheet PDF文件第8页浏览型号LM49450SQX/NOPB的Datasheet PDF文件第9页浏览型号LM49450SQX/NOPB的Datasheet PDF文件第10页 
LM49450  
www.ti.com  
SNAS440D –FEBRUARY 2008–REVISED MAY 2013  
Electrical Characteristics VDD = LSVDD = 3.6V, HPVDD = CPVDD = 2.5V(1)(2) (continued)  
The following specifications apply for Headphone: AV = 0dB, RL(LS) = 8Ω, RL(HP) = 32Ω, f = 1kHz, C1 = C2 = 2.2μF, unless  
otherwise specified. Limits apply for TA = 25°C.  
LM49450  
Typical(3)  
Units  
(Limits)  
Symbol  
VOUT_FS  
Parameter  
Conditions  
RL = No Load  
Limit(4)  
Full-Scale Headphone Amplifier  
Output Voltage  
mVRMS  
(min)  
942  
850  
tON  
Turn-On Time  
Turn-Off Time  
27  
1
ms  
ms  
tOFF  
HEADPHONE SENSE INPUT (HPS)  
VIH  
VIL  
Input High Voltage  
Input Low Voltage  
1
V
V
0.6  
DIGITAL INTERFACE  
VIH  
VIL  
Input High Voltage  
2.8  
0.8  
2
V (min)  
V (max)  
V (min)  
V (max)  
Input Low Voltage  
Output High Voltage  
Output Low Voltage  
VOH  
VOL  
1
Electrical Characteristics VDD = LSVDD = 5.0V(1)(2)  
The following specifications apply for Headphone: AV = 0dB, RL(LS) = 8Ω, RL(HP) = 32Ω, f = 1kHz, unless otherwise specified.  
Limits apply for TA = 25°C.  
LM49450  
Typical(3)  
Units  
(Limits)  
Symbol  
Parameter  
Conditions  
Limit(4)  
SPEAKER AMPLIFIERS (Headphone Amplifiers Disabled, HPS = 0)  
fS = 48kHz, DAC Active  
Line Inputs Active  
14  
10.4  
18  
16  
mA (max)  
mA (max)  
IDDLS  
VOS  
Analog Supply Current  
Output Offset Voltage  
DAC Voltage  
AV = 0dB, Line Inputs Active  
15  
12  
50  
48  
mV (max)  
mV (max)  
RL = 4Ω, f = 1kHz  
THD+N = 1%  
THD+N = 10%  
1.9  
2.5  
W
W
POUT  
Output Power  
RL = 8Ω, f = 1kHz  
THD+N = 1%  
1.25  
1.54  
mW (min)  
W
THD+N = 10%  
PO = 635mW, f = 1kHz, RL = 8Ω  
DAC Active  
THD+N  
Total Harmonic Distortion  
0.06  
0.04  
%
%
Line Inputs Active  
VRIPPLE = 200mVP-P, f = 1kHz  
DAC Active, Internal Reference  
DAC Active, External Reference  
Line Inputs Active  
60  
60  
70  
dB  
dB  
dB  
PSRR  
Power Supply Rejection Ratio  
Efficiency  
PO = TBDmW, f = 1kHz  
RL = 8Ω  
η
80  
%
(1) The Electrical Characteristics tables list ensured specifications under the listed Recommended Operating Conditions except as  
otherwise modified or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and  
are not ensured.  
(2) RL is a resistive load in series with two inductors to simulate an actual speaker load. For RL = 8Ω, the load is 15µH + 8Ω +15µH. For RL  
= 4Ω, the load is 15µH + 4Ω + 15µH.  
(3) Typical values represent most likely parametric norms at TA = +25ºC, and at the Recommended Operation Conditions at the time of  
product characterization and are not ensured.  
(4) Datasheet min/max specification limits are specified by test or statistical analysis.  
Copyright © 2008–2013, Texas Instruments Incorporated  
Submit Documentation Feedback  
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Product Folder Links: LM49450  
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