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UPC1892CTのメーカーはNECです、この部品の機能は「MATRIX SURROUND SOUND PROCESSOR WITH SOUND PROCESSOR」です。 |
部品番号 | UPC1892CT |
| |
部品説明 | MATRIX SURROUND SOUND PROCESSOR WITH SOUND PROCESSOR | ||
メーカ | NEC | ||
ロゴ | |||
このページの下部にプレビューとUPC1892CTダウンロード(pdfファイル)リンクがあります。 Total 30 pages
DATA SHEET
Bipolar Analog Integrated Circuit
µPC1892
MATRIX SURROUND SOUND PROCESSOR
WITH SOUND PROCESSOR
The µPC1892 is a specific IC to reproduce surround sound by using phase shifters and a signal matrix.
The µPC1892 provides wide sound with two speakers, and rich stereophonic sound with three speakers.
In case of stereo signal, the µPC1892 has the movie mode to reproduce sense of immediacy (for movie) and the music mode
to emphasize vocal sound (for music), and it has the simulated mode to make monaural signal into wide deep sound. The modes
can be selected freely by using 2-bit parallel control pins.
In addition to this function reproducing surround sound, the µPC1892 has a general sound processor that has volume, balance,
bass and treble control. So it is capable of reducing installation area.
All functions for processing signals of base band sound are provided on one chip.
FEATURES
• Three surround modes are available: movie, music and simulated
• Built in volume and balance control (All control voltage: 0 V to 5 V)
• Built in tone control (bass, treble) (All control voltage: 0 V to 5 V)
• Built in L+R output for woofer SP
• µPC1892CT-02: The volume and balance attenuation are bigger than µPC1892CT.
APPLICATION
• TV
ORDERING INFORMATION
Part Number
µPC1892CT
µPC1892CT-02
Package
30-pin plastic shrink DIP (400 mil)
30-pin plastic shrink DIP (400 mil)
The information in this document is subject to change without notice.
Document No. S10650EJ3V0DS00 (3rd edition)
(Previous No. ID-2902)
Date Published October 1995 P
Printed in Japan
©
1991, 1992, 1995
1 Page HPF
820 kΩ
2200 pF 0.022 µF
0.082 µ F
28 29
0.1 µ F
0.022 µF 1000 pF
FC1 FC2 FC3 FC4
2345
30
1µ F
+
6
VOLUME
CONTROL +5 V
Note
6800 pF
22
Note
0.15µ F
21
BALANCE
CONTROL
VCC 10 kΩ
10 kΩ
10 kΩ
510 Ω 510 Ω
1 20 19
L+R
VOLUME
CONTROL
510 Ω
18
LIN +
25
22µ F
RIN +
26
22µ F
Simulated
–
Simulated/Movie
ϕ (L–R)
LPF +
PS1 PS2 PS3 PS4
1 Movie/
Music
PHASE SHIFTER
–
+ L–R
Music
LPF
2
1
2
VCC
MODE
CONTROL
OFF
1
2
VCC
24
+
22µ F
27 7
1 kΩ
680 pF
MS1
8
1 kΩ
23
+5 V
510 Ω
MS2
10 kΩ
EFFECT
CONTROL
Note Recommended Precision: ±1 %
TONE
(BASS, TREBLE)
CONTROL
DC CONTROL
TONE
(BASS, TREBLE)
CONTROL
VOLUME
CONTROL
10 11
Note
6800 pF
Note
0.15 µ F
15 17
510 Ω
GND
16
510 Ω
+5 V
10 kΩ
BASS
CONTROL
TREBLE
CONTROL
10 kΩ
L OUTPUT
L+ϕ (L–R)
+
14
4.7 µ F
REAR OUTPUT
ϕ (L–R)
+
9
4.7 µ F
R OUTPUT
R–ϕ (L–R)
12 +
4.7 µ F
L+R OUTPUT
L+R
13 +
4.7 µ F
3Pages 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
5µA
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
6 Page | |||
ページ | 合計 : 30 ページ | ||
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データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
UPC1892CT | MATRIX SURROUND SOUND PROCESSOR WITH SOUND PROCESSOR | NEC |
UPC1892CT-02 | MATRIX SURROUND SOUND PROCESSOR WITH SOUND PROCESSOR | NEC |