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參數(shù)資料
| 型號(hào)： | LA4629 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 元件分類： | 音頻放大器 |
| 英文描述： | Two-Channel Audio Frequency Power Amplifier |
| 中文描述： | 雙通道音頻功率放大器 |
| 文件頁(yè)數(shù)： | 4/6頁(yè) |
| 文件大?。?/td> | 63K |
| 代理商： | LA4629 |
LA4629
No.6502-4/6
3. FILTER (decoupling) pin (pin 7)
The pin voltage is about 1/2 VCC.
The recommended value for the filter capacitor is 100
μ
F.
The pulse noise that occurs when the standby pin is set low (power off) will be degraded if a value under 100
μ
F is
used.
AC voltage (100 mV)
4. P.P (pulse noise) pin (pin 8)
Pin 8 pin voltage
≈
VCC - VCE (about 0.3 V) - 5.6 V + 5.6 V
2 k
The recommended value for the P.P capacitor is 4.7
μ
F.
The pulse noise that occurs when the standby pin is set low (power off) will
be degraded if a value under 2.2
μ
F is used.
Furthermore, if a value over 10
μ
F is used, the signal may not be cut off and
sound may remain audible when the standby pin is set low (power off).
5. MUTE (Muting)
The output signal can be controlled by shifting the pin 7 (FILTER) level towards ground with a 300 to 500
resistor.
However, note that the degree of suppression is reduced if a value of 750
or more is used.
ILA00078
ILA00079
Filter capacitor = 100
μ
F
Filter capacitor = 47
μ
F
Output DC voltage
Output DC voltage
AC voltage (200 mV)
VCC
5
5
8
ILA00080
Zener voltage
= 5.6 V
To the input amplifier
block/bias system
ILA00081
Mute ON
Mute OFF
Output DC voltage
Output AC voltage
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