LM4810MA National Semiconductor, LM4810MA Datasheet - Page 5

• Manufacturer Part Number: LM4810MA
• Description: Dual 105mW Headphone Amplifier with Active-High Shutdown Mode
• Manufacturer: National Semiconductor

Components
External Components Description
Typical Performance Characteristics
4. C
5. C
6. C
1. R
2. C
3. R
O
S
B
i
i
f
THD+N vs Frequency
THD+N vs Frequency
The inverting input resistance, along with R
pass filter with f
The input coupling capacitor blocks DC voltage at the amplifier’s input terminals. C
create a highpass filter with f
Components, for an explanation of determining the value of C
The feedback resistance, along with R
This is the supply bypass capacitor. It provides power supply filtering. Refer to the Application
Information section for proper placement and selection of the supply bypass capacitor.
This is the BYPASS pin capacitor. It provides half-supply filtering. Refer to the section, Selecting
Proper External Components, for information concerning proper placement and selection of C
This is the output coupling capacitor. It blocks the DC voltage at the amplifier’s output and forms a high
pass filter with R
c
L
= 1/(2πR
at f
O
= 1/(2πR
i
C
i
).
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c
= 1/(2πR
L
C
O
)
(Figure 1)
i
, set closed-loop gain.
i
C
Functional Description
i
). Refer to the section, Selecting Proper External
5
f
, set the closed-loop gain. R
i
THD+N vs Frequency
THD+N vs Frequency
.
i
, along with C
i
, along with R
i
, form a high
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B
.
i
,