LM4808MM National Semiconductor, LM4808MM Datasheet - Page 4

• Manufacturer Part Number: LM4808MM
• Description: IC,Audio Amplifier,DUAL,TSSOP,8PIN,PLASTIC
• Manufacturer: National Semiconductor

Specifications of LM4808MM

• Dc: 1118
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

www.national.com
External Components Description
Typical Performance Characteristics
THD+N vs Frequency
THD+N vs Frequency
Compo-
nents
6. C
4. C
5. C
7. R
1. R
2. C
3. R
S
B
O
B
i
i
f
Inverting input resistance which sets the closed-loop gain in conjuction with R
forms a high pass filter with C
Input coupling capacitor which blocks the DC voltage at the amplifier’s input terminals. Also creates a
highpass filter with R
Components, for and explanation of how to determine the value of C
Feedback resistance which sets closed-loop gain in conjuction 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
Resistor which forms a voltage divider that provides a half-supply DC voltage to the non-inverting
input of the amplifier.
L
DS101276-3
DS101276-6
at f
O
= 1/(2 R
i
THD+N vs Frequency
THD+N vs Frequency
at f
c
= 1 / (2 R
L
C
O
i
at f
)
c
( Figure 1 )
= 1 / (2 R
i
C
Functional Description
i
). Refer to the section, Proper Selection of External
4
i
C
i
).
DS101276-4
DS101276-7
THD+N vs Frequency
THD+N vs Frequency
i
i
.
.
f
. This resistor also
B
.
DS101276-5
DS101276-8