參數(shù)資料
型號： UPC1876GT
廠商： NEC Corp.
英文描述： US MTS DECODER
中文描述： 美國的多邊貿(mào)易體制解碼器
文件頁數(shù)： 3/40頁
文件大小： 309K
代理商： UPC1876GT
μ
PC1876
3
Data Sheet S11666EJ4V0DS00
BLOCK DIAGRAM
Notes 1.
Do not leave the Internally Connected (IC) pin open because it is a base-open pin. Connect this pin to V
CC
or GND.
2.
Am: Amplitude modulation (Carrier frequency is 31.5 kHz (2fH))
Remark
Use the following for external parts.
Resistor (
) : Metal film resistor (
±
1%). Unless otherwise specified;
±
5%
Capacitors (
) : Tantalum capacitor (
±
10%). Unless otherwise specified;
±
20%
Variable resistors:
±
10%
ROT
V
CC
1 k
24
25
26
LED
Driver
Mode
Selector
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
Matrix
Offset
Absorp-
tion
Wide-
Band
RMS
Wide-
Band
VCA
Wide-
Band
RMS
Filter
f
H
Trap
LPF
Spectral
RMS
Filter
Spectral
RMS
2.19 kHz
LPF
408 Hz
LPF
Stereo
VCO
De-
emphasis
SAP
VCO
Note 2
Note 1
L-R
AM
Demodulator
L+R
LPF
Pilot
Discrimination
Phase
Comparator
Stereo
LPF
Stereo
Phase
Comparator
Pilot
Canceller
+
–
Phase
Detector
SAP
LPF
Loop
Filter
SAP
Detector
SAP
BPF
Noise
BPF
Noise
Detector
ST/SAP
SW
SAP1/2
ST/SAP
MUTE
FMONO
IC
LOT
10 F
+
10 F
+
1 F
+
0.1 F
22 F
+
1.5 V
33 k
SAPVA
10 k
33 k
1 k
47 k
0.1 F
20 k
+1 F
μ
4.7 F +
μ
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
1 k
V
CC
V
CC
20 k
10 F
+
3.3 F
+
WTI
51 k
100 k
51 k
50 k
56 k
56 k
5.1 k
3 k
+
+
1 F
V
CC
0.1 F
0.1 F
68 k
+
0.47 F
0.047 F
0.01 F
2.2 F
+
STL
GND
MOA1
MOA2
FLTA
STI
DCO
SAPL
LGND
φ
φ
1 F
μ
SPA
WBA
ITI
WRB
SRB
V
CC
WBVI
VEO
fHSW
SI
SOT
NDT
SDT
SDI
SBO
COM
1/2
V
CC
1/2
1/4
VRE
STVA
PD1
PD2
D1
D2
VOA
23
Variable
Emphasis
22
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