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參數(shù)資料
| 型號： | LA4590W |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.021 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 |
| 封裝： | 0.50 MM PITCH, SQFP-48 |
| 文件頁數(shù)： | 6/19頁 |
| 文件大小： | 538K |
| 代理商： | LA4590W |
Switch Pin Equivalent Circuits
1. Power switch pin
2. Power muting and low boost switch pins
3. FWD/REV, METAL, PRE MUTE, R.F1 switches
No. 4468-14/19
LA4590W
The power switch is on when the power switch pin is connected
to ground.
Io = VCC/200 k + VCC – 0.7 V/22 k
Pin 38
VS ≤ 100 mV
The power muting function is turned on when pin 37 is connected
to ground.
The low boost switch is turned on when pin 41 is floating.
Io
≤ 0.1 A
VS ≤ 80 mV
Note: The smoothing discharge resistor should be 430 k
or
smaller.
Reverse is selected when pin 39 is connected to ground.
Metal tape is selected when pin 40 is floating.
Preamplifier muting is turned on when pin 42 is floating.
The ripple filter switch is turned on when pin 43 is grounded.
Pins 39, 40, and 43
Pin 42
Io
≤ 7 A
Io
≤ 14 A
VS ≤ 0.5 V
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