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TA2131FNG Datasheet(Hoja de datos) 10 Page - Toshiba Semiconductor

No. de Pieza. TA2131FNG
Descripción  Low Current Consumption Headphone Amplifier for Portable MD Player (With Bass Boost Function)
Descarga  19 Pages
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Fabricante  TOSHIBA [Toshiba Semiconductor]
Página de inicio  http://www.semicon.toshiba.co.jp/eng
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 10 page
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TA2131FNG
2006-04-19
10
4.
Power Switch
As long as the power switch is not connected to “H” level, the IC does not operate. If it malfunctions due
to external noise, however, it is recommended to connect a pull-down resistor externally (the power switch
is set to be highly sensitive).
5.
Threshold Voltages of Switches
6.
These capacitors which prevent oscillation of the power amplifier, and are between
the Vref and VCC-GND must have a small temperature coefficient and outstanding
frequency characteristics.
PW SW (V16)
“H” level
IC operation
“L” level
IC OFF
MT SW (V17)
“H” level
Mute ON
“L” level
Mute reset
BST SW (V18)
“H” level/OPEN
BST ON
“L” level
BST OFF
(1)
PW SW
Power supply voltage
VCC (V)
0
1
2
3
4
5
4
5
2
1
3
1.6 V
4.5 V
0.6 V
L
H
Power supply voltage
VCC (V)
0
1
2
3
4
5
4
5
2
1
3
4.5 V
0.8 V
L
H
(2)
MT SW, BST SW
0.3 V




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