LM4861MX/NOPB National Semiconductor, LM4861MX/NOPB Datasheet - Page 5

• Manufacturer Part Number: LM4861MX/NOPB
• Description: Audio Amp Speaker 1-CH Mono 1.1W Class-AB 8-Pin SOIC N T/R
• Manufacturer: National Semiconductor

Specifications of LM4861MX/NOPB

• Package: 8SOIC N
• Function: Speaker
• Amplifier Type: Class-AB
• Total Harmonic Distortion Noise: 0.72@8Ohm@1W %
• Typical Psrr: 65 dB
• Output Signal Type: Differential
• Maximum Load Resistance: 8 Ohm
• Output Type: 1-Channel Mono
• Amplifier Class: AB
• No. Of Channels: 1
• Output Power: 1.1W
• Supply Voltage Range: 2V To 5.5V
• Load Impedance: 8ohm
• Operating Temperature Range: -40°C To +85°C
• Amplifier Case Style: SOIC
• Rohs Compliant: Yes

External Components Description
Note 9: Optional component dependent upon specific design requirements. Refer to the Application Information section for more information.
Typical Performance Characteristics
(Figures 1, 2)
1. R
2. C
3. R
4. C
5. C
6. C
Components
i
i
f
S
B
f
(Note 9)
THD+N vs Frequency
THD+N vs Frequency
Inverting input resistance which sets the closed-loop gain in conjunction with R
a high pass filter with C
Input coupling capacitor which blocks DC voltage at the amplifier’s input terminals. Also creates a
highpass filter with R
Feedback resistance which sets closed-loop gain in conjunction with R
Supply bypass capacitor which provides power supply filtering. Refer to the Application Information
Bypass pin capacitor which provides half supply filtering. Refer to the Application Information section
for proper placement and selection of bypass capacitor.
C
possible
f
section for proper placement and selection of supply bypass capacitor.
in conjunction with R
high frequency oscillation bursts.
i
at f
f
creates a low-pass filter which bandwidth limits the amplifier and prevents
i
at f
C
01198605
01198607
= 1 / (2π R
C
= 1 / (2π R
i
C
Functional Description
i
i
5
).
C
i
).
f
C
= 1 / (2π R
f
C
THD+N vs Output Power
f
)
THD+N vs Frequency
i
.
f
. This resistor also forms
01198609
01198606
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