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參數資料
| 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： | 18/19頁 |
| 文件大小： | 538K |
| 代理商： | LA4590W |
Continued from preceding page.
No. 4468-8/19
LA4590W
Pin No.
Symbol
VDC (V)
Equivalent circuit
Pin function
37
POWER MUTE SW
41
LOW BOOST SW
38
POWER SW
39
FWD/REV SW
40
METAL SW
42
PRE MUTE SW
43
R.F1 SW
44
R.F REF
1.13
46
R.F BASE2
0.5
48
R.F BASE1
Muting is turned on by grounding pin 37.
Low boost is turned on by setting pin 41
floating.
Turns on IC power when grounded.
Forward is selected when pin 39 is floating,
reverse when grounded.
Metal is selected when pin 40 is floating.
Muting is turned on when pin 42 is floating.
R.F1 (pin 1) is turned on when pin 43 is
grounded.
The R.F. reference. The R.F. SVRR can be
changed with an external capacitor.
External PNP transistor base drive pins.
Unit (resistance:
, capacitance: F)
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