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Электронный компонент: NJM2186

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P R E L I M I N A R Y
NJM2186
- 1 -
DOLBY S-TYPE NOISE REDUCTION PROCESSOR
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FEATURES
q
Operating Voltage
( +7.5 or 3.75 V min )
q
Dolby Level
(-6dBm=388mVrms)
q
Stereo system on 1 chip
q
Few external parts
q
Bipolar Technology
q
Package Outline
TQFP64
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BLOCK DIAGRAM
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GENERAL DISCRIPTION
The NJM2186 is a stereo Dolby S-type noise reduction
processor. It applies to stereo system on 1 chip because it
includes dual channel circuit.
The NJM2186 contains all of necessary block for decoding
operation, and it also performs encoding operation by connecting
two external operational amplifiers.
The feature of minimum operating voltage from 7.5V(V
+
/V
-
=
3.75V)is most suitable for car audio applications.

(NOTE) Dolby and double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.
San Francisco, CA94103-4813. USA.
This device is available only to licensees of Dolby Lab.
Licensing and application information may be obtained from Dolby Lab.
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PACKAGE OUTLINE
NJM2186FG1
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33
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1
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11
7
BIAS
HLF filter
HHF filter
HHS filter
LHF filter
LHS filter
ANTSAT
INTG
NL
RECT
MC
INTG
NL
RECT
INTG
NL
RECT
INTG
NL
RECT
INTG
NL
RECT
TO RECT
HLF filter
HHF filter
HHS filter
LHF filter
LHS filter
ANTSAT
INTG
NL
RECT
MC
INTG
NL
RECT
INTG
NL
RECT
INTG
NL
RECT
INTG
NL
RECT
TO RECT
Ach
Bch
NJM2186
- 2 -
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ABSOLUTES MAXIMUM RATINGS(Ta=25
C,unless otherwise specified))
Parameter
Symbol
Rates
Unit
Supply Voltage
V+
-
(V
+
/V)
14.0
(7)
V
Power Dissipation
P
D
700
mW
Operating Temperature
T
OPR
-40 to +85
C
Storage Temperature
T
stg
-40 to +125
C
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ELECTRICAL CHARACTERISTICS
(Ta=25
C V
+
/V
-
=
6,0dBd Reference is 388mVrms/400Hz,unless otherwise specified)
Parameter
Symbol
Test Conditions
Min.
Typ.
Max.
Unit
Supply Voltage
Range
V+
(V
+
/V
-
)
7.5
(3.75)
12.0
(6)
13.0
(6.5)
V
Supply Current
I
CC
No Signal
-
20
30
mA
Encode Response1
ENC-1
f=2kHz, Vin=-60dBd
21.8
23.3
24.8
2
ENC-2
f=50Hz, Vin=-40dBd
5.8
7.3
8.8
3
ENC-3
f=400Hz, Vin=-40dBd
15.1
16.6
18.1
4
ENC-4
f=15kHz, Vin=-40dBd
11.3
12.8
14.3
5
ENC-5
f=400Hz, Vin=-20dBd
6.0
7.5
9.0
6
ENC-6
f=2kHz, Vin=-20dBd
4.2
5.7
7.2
7
ENC-7
f=50Hz, Vin=0dBd
-3.1
-1.6
-0.1
8
ENC-8
f=15kHz, Vin=0dBd
-8.3
-6.8
-5.3
dB
SH1
f=1kHz, THD=1%, V
+
=7.5V
12.0
13.0
-
Signal Handling
SH2
f=1kHz, THD=1%, V
+
=9.5V
15.0
16.0
-
dB
Total Harmonic
Distortion
THD
f=1kHz, Vin=0dBd
-
0.05
0.15
%
S/N Ratio
S/N
Rg=600
, CCIR/ARM
62.0
65.0
-
dB
Separation
SEP
Vin=0dBd
60.0
72.0
-
dB
NJM2186
- 3 -
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PIN FUNCTION
No.
Symbol
No.
Symbol
No.
Symbol
No.
Symbol
1
HLSOUTA
17
MCBOA
33
DNC
49
FBOLB
2
SCINA
18
MC3INA
34
TCF2HB
50
HLSMPB
3
SCBOLA
19
MC4INA
35
TCF1HB
51
FBOHB
4
ANTSATA
20
MCTCA
36
TCF2LB
52
SCINHB
5
RECOUTA
21
ZL1A
37
TCF1LB
53
LFINB
6
TCL1A
22
ZL2A
38
TCS2HB
54
DNC
7
TCL2A
23
V
REF
A
39
TCS1HB
55
I
REF
8
TCS1LA
24
DNC
40
TCS2LB
56
DNC
9
TCS2LA
25
V
-
41
TCS1LB
57
V
+
10
TCS1HA
26
V
REF
B
42
TCL2B
58
DNC
11
TCS2HA
27
ZL2B
43
TCL1B
59
DNC
12
TCF1LA
28
ZL1B
44
RECOUTB
60
LFINA
13
TCF2LA
29
MCTCB
45
ANTSATA
61
SCINHA
14
TCF1HA
30
MC4INB
46
SCBOLB
62
FBOHA
15
TCF2HA
31
MC3INB
47
SCINLB
63
HLSMPA
16
DNC
32
MCBOB
48
HLSOUTB
64
FBOLA
AN
T
S
A
T
A
FBOLB
HLSMPB
FBOHB
SCINHB
LFINB
DNC
I
REF
DNC
V
+
DNC
DNC
LFINA
SCINHA
FBOHA
HLSMPA
FBOLA
HLSOUTB
SCINLB
SCBOLB
AN
T
S
A
T
B
RECOUTB
TCL1B
TCL2B
TCS1LB
TCS2LB
TCS1HB
TCS2HB
TCF1LB
TCF2LB
TCF2HB
TCF1HB
DNC
MC3INB
MC4INB
MCTCB
ZL1B
V
REF
B
V
-
DNC
V
REF
A
ZL1A
MCTCA
MC4INA
MC3INA
HLSOUT
A
SCINA
SCBOLA
RECOUT
A
TCL1A
TCL2A
TCS1LA
TCS2LA
TCS1HA
TCS2HA
TCF1LA
TCF2LA
TCF2HA
TCF1HA
DNC
MCBOA
ZL2A
ZL2B
MCBOB
NJM2186
1
16
17
32
33
48
49
64
DNC: Do not connect
NJM2186
- 4 -
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PIN FUNCTION
No.
SYMBOL
FUNCTION
EQUIVALENT CURCUIT
1
48
HLSOUTA
HLSOUTB
H Stage Out Ach
H Stage Out Bch
2
47
61
52
SCINLA
SCINLB
SCINHA
SCINHB
L Side Chane In Ach
L Side Chane In Bch
HH Side Chane Ach
HH Side Chane Bch
3
46
SCBOLA
SCBOLB
L Side Chane Buffer Out Ach
L Side Chane Buffer Out Bch
4
45
ANTSATA
ANTSATB
Anti-Saturation Ach
Anti-Saturation Bch
NJM2186
- 5 -
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PIN FUNCTION
No.
SYMBOL
FUNCTION
EQUIVALENT CURCUIT
5
44
RECOUTA
RECOUTB
Encoder Out Ach
Encoder Out Bch
6
43
TCL1A
TCL1B
HL Time Constant 1 Ach
HLF Time Constant 1 Bch
7
42
TCL2A
TCL2B
HL Time Constant 2 Ach
HLF Time Constant 2 Bch
8
41
10
39
TCS1LA
TCS1LB
TCS1HA
TCS1HB
LHS Time Constant 1 Ach
LHS Time Constant 1 Bch
HHS Time Constant 1 Ach
HHS Time Constant 1 Bch