參數(shù)資料
型號： LM4671
廠商： National Semiconductor Corporation
元件分類： 音頻放大器
英文描述： Filterless High Efficiency 2.5W Switching Audio Amplifier
中文描述： 濾波2.5W的高效率開關音頻放大器
文件頁數(shù)： 4/18頁
文件大?。?/td> 969K
代理商： LM4671
Electrical Characteristics
(Notes 1, 2)
The following specifications apply for A
V
= 2V/V (R
I
= 150k
), R
L
= 15μH + 8
+ 15μH unless otherwise specified. Limits
apply for T
A
= 25C. (Continued)
Symbol
Parameter
Conditions
LM4671
Units
(Limits)
Typical
(Note 6)
Limit
(Notes 7, 8)
P
O
Output Power
R
L
= 15μH + 8
+ 15μH
THD = 10% (max)
f = 1kHz, 22kHz BW
V
DD
= 5V
V
DD
= 3.6V
V
DD
= 2.5V
R
L
= 15μH + 8
+ 15μH
THD = 1% (max)
f = 1kHz, 22kHz BW
V
DD
= 5V
V
DD
= 3.6V
V
DD
= 2.5V
V
DD
= 5V, P
O
= 0.1W
RMS
,
f = 1kHz
V
DD
= 3.6V, P
O
= 0.1W
RMS
,
f = 1kHz
V
DD
= 3.6V, P
O
= 0.1W
RMS
,
f = 5kHz
V
DD
= 3.6V, P
O
= 0.1W
RMS
,
f = 10kHz
V
DD
= 3.6V, 5V
V
Ripple
= 200mV
PP
Sine,
f
Ripple
= 217Hz
Inputs to AC GND, C
I
= 2μF
V
DD
= 3.6V, 5V
V
Ripple
= 200mV
PP
Sine,
f
Ripple
= 1kHz
Inputs to AC GND, C
I
= 2μF
V
DD
= 3.6V, 5V
V
Ripple
= 200mV
PP
Sine,
f
Ripple
= 10kHz
Inputs to AC GND, C
I
= 2μF
V
DD
= 3.6V, 5V
V
Ripple
= 200mV
PP
Sine,
f
Ripple
= 217Hz
f
IN
= 1kHz, P
O
= 10mW
RMS
V
DD
= 5V, P
O
= 1W
RMS
V
DD
= 3.6V, f = 20Hz – 20kHz
Inputs to AC GND, C
I
= 2μF
No Weighting
V
DD
= 3.6V, Inputs to AC GND
C
I
= 2μF, A Weighted
V
DD
= 3.6V, V
Ripple
= 1V
PP
Sine
f
Ripple
= 217Hz
V
DD
= 3.6V
17
870
425
W
mW
W
1.19
700
350
W
mW
W
600
THD+N
Total Harmonic Distortion + Noise
0.09
%
0.04
%
0.12
%
0.05
%
61.8
dB
PSRR
Power Supply Rejection Ratio
59.8
dB
48.65
dB
65.71
dB
SNR
Signal to Noise Ratio
93
dB
e
OUT
Output Noise
58
μV
RMS
38
μV
RMS
CMRR
Common Mode Rejection Ratio
68.3
dB
T
WU
T
SD
Wake-up Time
Shutdown Time
17
140
μs
μs
L
www.national.com
4
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相關代理商/技術參數(shù)
參數(shù)描述
LM4671_07 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Filterless High Efficiency 2.5W Switching Audio Amplifier
LM4671_08 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Filterless High Efficiency 2.5W Switching Audio Amplifier
LM4671ITL 制造商:Texas Instruments 功能描述:Audio Amp Speaker 1-CH Mono 2.5W Class-AB 9-Pin uSMD T/R 制造商:Texas Instruments 功能描述:IC AMP FILTERLESS 2.5W SMD 4671
LM4671ITL/NOPB 功能描述:音頻放大器 Filterless Hi Eff 2.5W Swtch Audio Amp RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
LM4671ITLBD 功能描述:BOARD EVALUATION LM4671ITL RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 音頻放大器 系列:Boomer® 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:-
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