LM4880M National Semiconductor, LM4880M Datasheet - Page 5

• Manufacturer Part Number: LM4880M
• Description: Audio Power Amplifier IC
• Manufacturer: National Semiconductor

Specifications of LM4880M

• No. Of Channels: 2
• Output Power: 250mW
• Load Impedance: 8ohm
• Operating Temperature Range: -40°C To +85°C
• No. Of Pins: 8
• Termination Type: SMD
• Output Power Pout: 250mW
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

External Components Description
Typical Performance Characteristics
1.
2.
3.
4.
5.
6.
Components
R
C
R
C
C
C
THD + N vs Output Power
THD + N vs Output Power
i
i
F
S
B
o
Inverting input resistance which sets the closed-loop gain in conjunction with R
also forms a high pass filter with C
Input coupling capacitor which blocks the DC voltage at the amplifier’s input terminals. Also
creates a high pass filter with R
External Components, for an explanation of how to determine the value of C
Feedback resistance which sets closed-loop gain in conjunction with R
Supply bypass capacitor which provides power supply filtering. Refer to the Application
Information section for proper placement and selection of the supply bypass capacitor.
Bypass pin capacitor which provides half-supply filtering. Refer to the section, Proper
Selection of External Components, for information concerning proper placement and
selection of C
Output coupling capacitor which blocks the DC voltage at the amplifier’s output. Forms a high
pass filter with R
01234305
01234307
B
.
L
at f
o
= 1/(2πR
(Figure 1)
i
L
5
at f
C
i
o
Functional Description
).
at f
c
= 1/(2πR
c
= 1/(2πR
i
C
i
). Refer to the section, Proper Selection of
i
C
THD + N vs Output Power
THD + N vs Output Power
i
).
i
.
i
.
01234306
01234308
F
. This resistor
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