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參數(shù)資料
| 型號(hào)： | HWD2108 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Dual 105 mW Headphone Amplifier |
| 中文描述： | 雙105毫瓦耳機(jī)放大器 |
| 文件頁(yè)數(shù)： | 5/18頁(yè) |
| 文件大?。?/td> | 944K |
| 代理商： | HWD2108 |
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External Components Description
(Figure 1)
Components
Functional Description
The inverting input resistance, along with R
f
, set the closed-loop gain. R
i
, along with C
i
, form a high
pass filter with f
c
= 1/(2
π
R
i
C
i
).
The input coupling capacitor blocks DC voltage at the amplifier’s input terminals. C
i
, along with R
i
,
create a highpass filter with f
C
= 1/(2
π
R
i
C
i
). Refer to the section,
Selecting Proper External
Components
, for an explanation of determining the value of C
i
.
The feedback resistance, along with R
i
, set closed-loop gain.
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 half-supply 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
B
.
This is the output coupling capacitor. It blocks the DC voltage at the amplifier’s output and forms a high
pass filter with R
L
at f
O
= 1/(2
π
R
L
C
O
)
This is the resistor which forms a voltage divider that provides 1/2 V
DD
to the non-inverting input of the
amplifier.
1. R
i
2. C
i
3. R
f
4. C
S
5. C
B
6. C
O
7. R
B
Typical Performance
Characteristics
THD+N vs Frequency
THD+N vs Frequency
THD+N vs Frequency
THD+N vs Frequency
5
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