參數(shù)資料
型號(hào): LM4850MT
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 音頻/視頻放大
英文描述: Mono 1.5 W / Stereo 300 mW Power Amplifier
中文描述: 0.3 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO14
封裝: 4.40 MM, PLASTIC, TSSOP-14
文件頁(yè)數(shù): 5/20頁(yè)
文件大?。?/td> 1112K
代理商: LM4850MT
External Components Description
(Continued)
(Refer to Figure 1.)
Components
2.
Functional Description
C
i
Input coupling capacitor which blocks the DC voltage at the amplifier’s input terminals. Also creates a
highpass filter with R
i
at f
c
= 1/(2
π
R
i
C
i
). Refer to the section,
Proper Selection of External Components
,
for an explanation of how to determine the value of C
i
.
Feedback resistance which sets the closed-loop gain in conjunction with R
i
.
Supply bypass capacitor which provides power supply filtering. Refer to the
Power Supply Bypassing
section for information concerning 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
B
.
Output coupling capacitor which blocks the DC voltage at the amplifier’s output. Forms a high pass filter
with the single-ended load R
L
at f
O
= 1/(2
π
R
L
C
O
).
3.
4.
R
f
C
s
5.
C
B
6.
C
O
Typical Performance Characteristics
LD Specific Characteristics
LM4850LD
THD+N vs Frequency
LM4850LD
THD+N vs Frequency
20001075
20001076
LM4850LD
THD+N vs Output Power
LM4850LD
THD+N vs Output Power
20001077
20001078
L
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