UPC1892CT Ver la hoja de datos (PDF) - NEC => Renesas Technology
Número de pieza
componentes Descripción
Fabricante
UPC1892CT Datasheet PDF : 42 Pages
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µPC1892
Explanation of Pins (1/4)
Pin number/name
1 Power supply
2 Phase shift filter1
3 Phase shift filter2
4 Phase shift filter3
5 Phase shift filter4
Equivalent circuit
VCC
(Pins 3, 4 and 5 are same as pin 2.)
VCC
VCC
21 kΩ
21 kΩ
5 µA
18 kΩ 3 kΩ
VCC
10 kΩ
Description
Power supply pin.
Capacitor connection pin which determines time
constant of phase shifter.
Pin 2 is used for movie, music, simulated mode.
Pins 2, 3, 4, 5 is used for movie, simulated mode.
Recommended value of capacitor is as follows.
Pin 2: 0.1 µF
Pin 3: 2200 pF
Pin 4, 5: 0.022 µF
2
6 Offset filter
7 Mode select1
8 Mode select2
VCC
10 kΩ
50 kΩ
VCC
3 kΩ
25 µA
6
+
– 1µF
(Pin 8 is same as pin 7.)
1 kΩ
7
50 kΩ
50 kΩ
Capacitor connection pin which absorbs offset
voltage generated by phase shifter.
Surround mode switch pin.
Control by pin 7, 8 (2 bit parallel).
Input impedance:approx. 100 kΩ.
6
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