LM4834-MS

Manufacturer Part NumberLM4834-MS
ManufacturerNational Semiconductor
LM4834-MS datasheet
 


Specifications of LM4834-MS

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External Components Description
Components.
1.
C
Input coupling capacitor which blocks the DC voltage at the amplifier’s input terminals. Also creates a high
i
pass filter with R
i
an explanation of how to determine the value of C
2.
C
Supply bypass capacitor which provides power supply filtering. Refer to the Power Supply Bypassing
S
section for information concerning proper placement and selection of the supply bypass capacitor.
3.
C
Bypass pin capacitor which provides half-supply filtering. Refer to the section, Proper Selection of
B
External Components, for information concerning proper placement and selection of C
4.
C
Output coupling capacitor which blocks the DC voltage at the amplifiers output. Forms a high pass filter
O
with R
at f
= 1/(2πR
L
o
5.
R
Summing resistor that combines the right and left line level outputs into the mono input of the bridged
S
amplifier. The two summing resistors in parallel determine the value of the input resistance of the bridged
amplifier.
6.
R
Resistor for the bridged power amplifier in series with R
LFE
C
to increase closed-loop gain at low frequencies.
LFE
7.
R
Feedback resistor which sets the closed-loop gain in conjunction with the equivalent R
F
power amplifier.
8.
R
Resistor in series with Microphone supply pin and the microphone for biasing differential input
M1
microphones.
9.
R
Resistor in series with reference ground and the microphone used for biasing differential input
M2
microphones.
Typical Performance Characteristics
THD+N vs Frequency
Bridged Power Amp
Figure 2
Functional Description
at f
= 1/(2πR
C
). Refer to the section, Proper Selection of External Components, for
c
i
i
.
i
C
).
L
O
F
10001505
5
.
B
at high frequencies. Used in conjunction with
for the bridged
S
THD+N vs Frequency
Bridged Power Amp
10001504
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