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參數(shù)資料
| 型號(hào)： | LM4841 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Stereo 2W Amplifiers with DC Volume Control, Transient Free Outputs, and Cap-less Headphone Drive |
| 中文描述： | 2W的立體聲放大器直流音量控制，瞬態(tài)自由輸出，無電容耳機(jī)驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 4/31頁 |
| 文件大?。?/td> | 1138K |
| 代理商： | LM4841 |
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Electrical Characteristics for Single-Ended Mode Operation
(Notes 7, 10)
The following specifications apply for V
DD
= 5V. Limits apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4841
Units
(Limits)
Typical
(Note 14)
85
95
0.065
Limit
(Note 15)
P
O
Output Power
THD = 1.0%; f = 1kHz; R
L
= 32
THD = 10%; f = 1 kHz; R
L
= 32
V
OUT
= 1V
RMS
, f=1kHz, R
L
= 10k
,
A
VD
= 1
C
B
= 1.0 μF, f =120 Hz,
V
RIPPLE
= 200 mVrms
P
OUT
=75 mW, R
L
= 32
, A-Wtd
Filter
f=1kHz, C
B
= 1.0 μF
mW
mW
%
THD+N
Total Harmonic Distortion+Noise
PSRR
Power Supply Rejection Ratio
58
dB
SNR
Signal to Noise Ratio
102
dB
X
talk
Channel Separation
65
dB
Electrical Characteristics for Bridged Mode Operation
(Notes 7, 10)
The following specifications apply for V
DD
= 5V, unless otherwise noted. Limits apply for T
A
= 25C.
Symbol
Parameter
Conditions
LM4841
Units
(Limits)
Typical
(Note 14)
5
2.2
Limit
(Note 15)
±
50
V
OS
P
O
Output Offset Voltage
Output Power
V
IN
= 0V, No Load
THD + N = 1.0%; f=1kHz; R
L
= 3
(Note 8)
THD + N = 1.0%; f=1kHz; R
L
= 4
(Note 9)
THD = 1% (max);f = 1 kHz;
R
L
= 8
THD+N = 10%;f = 1 kHz; R
L
= 8
P
O
= 1W, 20 Hz
<
f
<
20 kHz,
R
L
= 8
, A
VD
= 2
P
O
= 340 mW, R
L
= 32
C
B
= 1.0 μF, f = 120 Hz,
V
RIPPLE
= 200 mVrms; R
L
= 8
V
DD
= 5V, P
OUT
= 1.1W, R
L
= 8
,
A-Wtd Filter
f=1kHz, C
B
= 1.0 μF
mV (max)
W
2
W
1.1
1.0
W (min)
1.5
0.3
W
%
THD+N
Total Harmonic Distortion+Noise
1.0
74
%
dB
PSRR
Power Supply Rejection Ratio
SNR
Signal to Noise Ratio
93
dB
X
talk
Channel Separation
70
dB
Note 3:
The
θ
JA
given is for an MXA28A package whose exposed-DAP is soldered to an exposed 2in
2
piece of 1 ounce printed circuit board copper.
Note 4:
The
θ
given is for an MXA28A package whose exposed-DAP is soldered to a 2in
2
piece of 1 ounce printed circuit board copper on a bottom side layer
through 21 8mil vias.
Note 5:
The
θ
JA
given is for an MXA28A package whose exposed-DAP is soldered to an exposed 1in
2
piece of 1 ounce printed circuit board copper.
Note 6:
The
θ
JA
given is for an MXA28A package whose exposed-DAP is not soldered to any copper.
Note 7:
All voltages are measured with respect to the ground pins, unless otherwise specified. All specifications are tested using the typical application as shown
in
Figure 1
.
Note 8:
When driving 3
loads from a 5V supply, LM4841MH and LM4841LQ must be mounted to the circuit board and forced-air cooled.
Note 9:
When driving 4
loads from a 5V supply, the LM4841MH and LM4841LQ must be mounted to the circuit board.
Note 10:
Absolute Maximum Ratings
indicate limits beyond which damage to the device may occur.
Operating Ratings
indicate conditions for which the device is
functional, but do not guarantee specific performance limits.
Electrical Characteristics
state DC andAC electrical specifications under particular test conditions which
guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit
is given, however, the typical value is a good indication of device performance.
Note 11:
The maximum power dissipation must be derated at elevated temperatures and is dictated by T
JMAX
,
θ
JA
, and the ambient temperature T
A
. The maximum
allowable power dissipation is P
DMAX
= (T
JMAX
T
A
)/
θ
JA
. For the LM4841MT and LM4841LQ, T
JMAX
= 150C. See
Power Dissipation
for further information.
Note 12:
Human body model, 100 pF discharged through a 1.5 k
resistor.
Note 13:
Machine Model, 220 pF–240 pF discharged through all pins.
Note 14:
Typicals are measured at 25C and represent the parametric norm.
Note 15:
Limits are guaranteed to National’s AOQL ( Average Outgoing Quality Level). Datasheet min/max specification limits are guaranteed by design, test, or
statistical analysis.
L
www.national.com
4
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM4841LQ | Stereo 2W Amplifiers with DC Volume Control, Transient Free Outputs, and Cap-less Headphone Drive |
| LM4841MH | Stereo 2W Amplifiers with DC Volume Control, Transient Free Outputs, and Cap-less Headphone Drive |
| LM4841MT | Stereo 2W Amplifiers with DC Volume Control, Transient Free Outputs, and Cap-less Headphone Drive |
| LM4842 | Stereo 2W Amplifiers with DC Volume Control Transient Free Outputs, and Cap-less Headphone Drive |
| LM4842LQ | Stereo 2W Amplifiers with DC Volume Control Transient Free Outputs, and Cap-less Headphone Drive |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM48410 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Low EMI, Filterless, 2.3W Stereo Class D Audio Power Amplifier with National 3D Enhancement |
| LM48410SQ | 制造商:Texas Instruments 功能描述:Audio Amp Speaker 2-CH Stereo 2.3W Class-D 24-Pin LLP EP T/R 制造商:Texas Instruments 功能描述:AMP, POWER, CLASS D, 2.3W, LLP-24 |
| LM48410SQ/NOPB | 功能描述:音頻放大器 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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LM48410SQBD | 功能描述:音頻 IC 開發(fā)工具 LM48410 EVAL BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| LM48410SQE/NOPB | 功能描述:音頻放大器 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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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