See NS Package Number LQA028AA for Exposed-DAP LLP
Block Diagram
20028001
FIGURE 1. LM4841 Block Diagram
www.national.com
2
LM4841
Absolute Maximum Ratings
(Note 10)
θ
JC
(typ) — LQA028A
θ
JA
(typ) — LQA028A
θ
JC
(typ) — MTC28
θ
JA
(typ) — MTC28
θ
JC
(typ) — MXA28A
θ
JA
(typ) — MXA28A (exposed
DAP) (Note 4)
θ
JA
(typ) — MXA28A (exposed
DAP) (Note 3)
θ
JA
(typ) — MXA28A (exposed
DAP) (Note 5)
θ
JA
(typ) — MXA28A (exposed
DAP) (Note 6)
3˚C/W
42˚C/W
20˚C/W
80˚C/W
2˚C/W
41˚C/W
54˚C/W
59˚C/W
93˚C/W
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
Storage Temperature
Input Voltage
Power Dissipation (Note 11)
ESD Susceptibility (Note 12)
All pins except Pin 28
Pin 28
ESD Susceptibility (Note 13)
Junction Temperature
Soldering Information
Small Outline Package
Vapor Phase (60 sec.)
Infrared (15 sec.)
2500V
6500V
200V
150˚C
6.0V
-65˚C to +150˚C
−0.3V to V
DD
+0.3V
Internally limited
Operating Ratings
215˚C
220˚C
Temperature Range
T
MIN
≤
T
A
≤T
MAX
Supply Voltage
−40˚C
≤TA ≤
85˚C
2.7V≤ V
DD
≤
5.5V
See AN-450 “Surface Mounting and their Effects on
Product Reliability” for other methods of soldering surface
mount devices.
Electrical Characteristics for Entire IC
(Notes 7, 10)
The following specifications apply for V
DD
= 5V unless otherwise noted. Limits apply for T
A
= 25˚C.
LM4841
Symbol
V
DD
I
DD
I
SD
V
IH
V
IL
TH
um
Parameter
Supply Voltage
Quiescent Power Supply Current
Shutdown Current
Headphone Sense High Input Voltage
Headphone Sense Low Input Voltage
Un-Mute Threshold Voltage
Gain 1st Stage = 1
V
shutdown
= V
DD
V
IN
applied to A or B input
22
V
IN
= 0V, I
O
= 0A
V
shutdown
= GND
15
0.7
4
0.8
10
40
Conditions
Typical
(Note 14)
Limit
(Note 15)
2.7
5.5
30
2.0
Units
(Limits)
V (min)
V (max)
mA (max)
µA (max)
V (min)
V (max)
mV
rms
mV
rms
Electrical Characteristics for Volume Attenuators
(Notes 7, 10)
The following specifications apply for V
DD
= 5V. Limits apply for T
A
= 25˚C.
LM4841
Symbol
C
RANGE
Parameter
Attenuator Range
Conditions
Gain with V
DCVol
= 5V, No Load
Attenuation with V
DCVol
= 0V (BM &
SE)
A
M
Mute Attenuation
V
mute
= 5V, Bridged Mode (BM)
V
mute
= 5V, Single-Ended Mode (SE)
Typical
(Note 14)
Limit
(Note 15)
Units
(Limits)
dB (max)
dB (min)
dB (min)
dB (min)
±
0.75
-75
-78
-78
3
www.national.com
LM4841
Electrical Characteristics for Single-Ended Mode Operation
The following specifications apply for V
DD
= 5V. Limits apply for T
A
= 25˚C.
Symbol
P
O
THD+N
PSRR
SNR
X
talk
Parameter
Output Power
Total Harmonic Distortion+Noise
Power Supply Rejection Ratio
Signal to Noise Ratio
Channel Separation
Conditions
THD = 1.0%; f = 1kHz; R
L
= 32Ω
THD = 10%; f = 1 kHz; R
L
= 32Ω
V
OUT
= 1V
RMS
, f=1kHz, R
L
= 10kΩ,
A
VD
= 1
C
B
= 1.0 µF, f =120 Hz,
V
RIPPLE
= 200 mVrms
P
OUT
=75 mW, R
Filter
L
(Notes 7, 10)
LM4841
Typical
(Note 14)
85
95
0.065
58
102
65
Limit
(Note 15)
Units
(Limits)
mW
mW
%
dB
dB
dB
= 32Ω, A-Wtd
f=1kHz, C
B
= 1.0 µF
Electrical Characteristics for Bridged Mode Operation
The following specifications apply for V
DD
Symbol
V
OS
P
O
Parameter
Output Offset Voltage
Output Power
Conditions
V
IN
= 0V, No Load
THD + N = 1.0%; f=1kHz; R
L
= 3Ω
(Note 8)
THD + N = 1.0%; f=1kHz; R
L
= 4Ω
(Note 9)
THD = 1% (max);f = 1 kHz;
R
L
= 8Ω
THD+N = 10%;f = 1 kHz; R
L
= 8Ω
THD+N
Total Harmonic Distortion+Noise
P
O
= 1W, 20 Hz
<
f
<
20 kHz,
R
L
= 8Ω, A
VD
= 2
P
O
= 340 mW, R
L
= 32Ω
PSRR
SNR
X
talk
Power Supply Rejection Ratio
Signal to Noise Ratio
Channel Separation
C
B
= 1.0 µF, f = 120 Hz,
V
RIPPLE
= 200 mVrms; R
L
= 8Ω
V
DD
= 5V, P
OUT
= 1.1W, R
L
= 8Ω,
A-Wtd Filter
f=1kHz, C
B
= 1.0 µF
(Notes 7, 10)
= 5V, unless otherwise noted. Limits apply for T
A
= 25˚C.
LM4841
Typical
(Note 14)
5
2.2
2
1.1
1.5
0.3
1.0
74
93
70
1.0
Limit
(Note 15)
Units
(Limits)
mV (max)
W
W
W (min)
W
%
%
dB
dB
dB
±
50
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
JA
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 3Ω loads from a 5V supply, LM4841MH and LM4841LQ must be mounted to the circuit board and forced-air cooled.
Note 9:
When driving 4Ω 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 and AC 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
= 150˚C. See
Power Dissipation
for further information.
Note 12:
Human body model, 100 pF discharged through a 1.5 kΩ resistor.
Note 13:
Machine Model, 220 pF–240 pF discharged through all pins.
Note 14:
Typicals are measured at 25˚C 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
What is the IP address of the CDMA proxy server? I used the dial-up program of the operating system to dial the CDMA module to the Internet (establish a PPP connection). Under the premise that the net...
[size=4] In the control system designed with MCU/DSP/FPGA, the commonly used power chips are BUCK (step-down) switching regulator and LDO (low dropout) linear regulator in the circuit with low voltage...
root@linux-virtual:/IData/cm10.1/android/system# source build/envsetup.shincluding device/generic/armv7-a-neon/vendorsetup.sh
including device/generic/armv7-a/vendorsetup.sh
including device/generic/g...
If the memory buffer starting from block has 100 bytes and is a signed number, do you need to find the maximum value and store it in the max unit? The code is as follows mov al,0; mov bl,1; mov cx,100...
The intelligent driving community has its own rhythm. Some are busy pushing new versions and focusing on R&D, others are busy with publicity and promotion, and still others are immersed in mass pro...[Details]
A line scan lens is an industrial lens used with line scan cameras. Its imaging principle is to capture the image of the workpiece using a linear sensor and then perform digital signal processing t...[Details]
A vacuum eutectic furnace is a critical piece of equipment used in the manufacturing and processing of various materials, particularly in the fields of microelectronics and nanotechnology. One of t...[Details]
What is "Car Electronic Fence"
Fleet managers can define a graphical area (regular or irregular) or divide it into administrative zones in Yamei Technology's vehicle backend management system ...[Details]
New energy vehicles are increasingly popular with consumers due to policies and energy conservation. Once you've purchased your vehicle, maintenance is essential. However, due to the different powe...[Details]
Amidst the wave of intelligent automotive transformation, advanced driver assistance is gradually emerging from cutting-edge technology into the mainstream, becoming a new frontier of industry comp...[Details]
Recently, Tesla released the "Tesla Car Voice Assistant Terms of Use", announcing that the car voice assistant will be connected to the Doubao large model (Skylark large model) and DeepSeek Chat pr...[Details]
For autonomous vehicles to safely navigate the road, they must identify far more complex objects than just traffic lights, pedestrians, and other familiar objects. Among these obstacles is a crucia...[Details]
According to foreign media reports, Nissan Motor has recently reached a cooperation with US battery technology company LiCAP Technologies to jointly promote the research and development of next-gen...[Details]
In June 2014, the Ministry of Industry and Information Technology issued 4G FD-LTE licenses to China Unicom and China Telecom. Together with the 4G TD-LTE licenses issued to China Mobile, China Uni...[Details]
The digital TV set-top box consists of a tuner, QAM demodulator, TS demultiplexer, MPEG-2 decoder, PAUNTSC video encoder, embedded CPU system and peripheral interfaces, CA module, and uplink data m...[Details]
Spark plugs are an indispensable device for engines. As the saying goes, without spark plugs, the engine cannot work properly. The serious consequence is that when driving at high speeds, the engin...[Details]
Charging is a familiar process for new energy vehicles, and as a source of battery energy, charging piles are crucial. New energy vehicle charging can be divided into fast charging and slow chargin...[Details]
UPS stands for Uninterruptible Power Supply, which includes energy storage devices. It is mainly used to provide uninterruptible power supply for devices that require high power stability.
...[Details]
During daily operation of an R-type power transformer, the voltage used varies as the equipment being used adjusts. This raises the question: can the transformer change voltage at this point? The a...[Details]
Buy&Sell
京公网安备 11010802033920号
EEWORLD
