LM4880M/NOPB National Semiconductor, LM4880M/NOPB Datasheet - Page 5

• Manufacturer Part Number: LM4880M/NOPB
• Description: IC AMP AUDIO PWR .325W AB 8SOIC
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class ABr

Specifications of LM4880M/NOPB

• Output Type: 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 325mW x 2 @ 8 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Features: Shutdown, Thermal Protection
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 2-Channel Stereo
• Output Power (typ): 0.325x2@8OhmW
• Audio Amplifier Function: Speaker
• Total Harmonic Distortion: 0.03@8Ohm@200mW%
• Single Supply Voltage (typ): 3/5V
• Dual Supply Voltage (typ): Not RequiredV
• Power Supply Requirement: Single
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 50dB
• Single Supply Voltage (min): 2.7V
• Single Supply Voltage (max): 5.5V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 8
• Package Type: SOIC N
• No. Of Channels: 2
• Output Power: 250mW
• Supply Voltage Range: 2.7V To 5.5V
• Load Impedance: 8ohm
• Operating Temperature Range: -40°C To +85°C
• Amplifier Case Style: SOIC
• No. Of Pins: 8
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *LM4880M; *LM4880M/NOPB; LM4880M

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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