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NJW1103A
Surround processor with Dolby Pro Logic Surround Decoder
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DESCRIPTION
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PACKAGE OUTLINE
The NJW1103A is a Dolby Pro Logic Surround processor
which contains all of the necessary functions of Pro Logic
decoder include time delay.
Features include not only Dolby Pro Logic but also other
surround such as Matrix, Hall, etc. and echo and mic mixing
function for karaoke.
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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FEATURES
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Operating Voltage
V
CC
=9V(Analog), V
DD
=5V(Digital)
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Digital Delay on Chip
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Cch, Sch Channel Level Trimmer
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Digital Noise Sequencer
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Karaoke Function (Echo, Mic Mixing)
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Serial Data Interface (DATA, REQ, SCK)
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Bi-CMOS Technology
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Package
QFP80-C3
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FUNCTION
Dolby Pro Logic Surround
Automatic input balance
Digital Noise sequencer
Adaptive matrix
Center channel control
(wideband, normal, phantom)
Modified B-type noise reduction
7kHz low-pass filter
Dolby 3 stereo mode
Digital time delay
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BLOCK DIAGRAM
P R E L I M I N A R Y
NJW1103AFC3
Other Surround
Sound field control
Front mixing control
Digital time delay
Karaoke
Echo control
Mic mixing
TRIMMER
+/
-
TRIMMER
L+R
VOL
Lout
Lin
Rout
Rin
Cout
Sout
MIC
Dout
MCU INTERFACE
SCK
DATA
REQ
BY -PASS
Adaptive Matrix
Au
t
o
In
put
B
a
l
anc
e
C
ent
er
M
o
de
C
ont
r
o
l
Di
g
i
t
a
l
No
i
s
e
S
e
q
u
e
n
ce
r
7kHz LPF
&
Modified B NR
PRO LOGIC DECODER
L
R
S
C
DIGITAL DELAY
16k SRAM
LPF
LPF
A/D
D/A
ECHO FILTER
SURROUND FILTER
L-R
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NJW1103A
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PACKAGE OUTLINE (QFP80-C3)
Pin No.
Pin Name
Pin No.
Pin Name
Pin No.
Pin Name
Pin No.
Pin Name
1
FILTER
21
XIN
41
VOL OUT
61
RLC4
2
LOUT
22
XOUT
42
DELAYSIG IN
62
RLC7
3
ROUT
23
DVSS
43
DELAYSIG OUT
63
RLC3
4
CT
24
AVSS
44
FBIN EC
64
RLC8
5
COUT
25
AVDD
45
FBIN SU
65
RLC6
6
ST
26
VREFD
46
S'OUT
66
LLI
7
SOUT
27
MIX OUT
47
DBIN
67
LBPF
8
CMC
28
DELAY IN
48
LPIN
68
RLI
9
SMRO
29
LPF1 IN1
49
DBC1
69
RBPF
10
SMRI
30
LPF1 IN2
50
DBC2
70
LT
11
AGND
31
LPF1 OUT
51
DBC3
71
RT
12
MIC IN
32
AD INT IN
52
PSC3
72
LIN
13
DVDD
33
AD INT OUT
53
PSC6
73
RIN
14
TEST CNT
34
AD CONT
54
PSC2
74
HOLDC
15
DATA
35
DA CONT
55
PSC5
75
AVCC
16
SCK
36
DA INT IN
56
PSC1
76
VREFA
17
REQ
37
DA INT OUT
57
PSC4
77
VREFG
18
LO1
38
LPF2 IN1
58
RLC5
78
IREF
19
LO2
39
LPF2 IN2
59
RLC2
79
REF OUT
20
LO3
40
LPF2 OUT
60
RLC1
80
NSQ
16.
8
0
.
3
14.
0
0
.
2
0.1
0.1
3.
05M
A
X
2.
8
-0
.
0
2
+
0
.
05
0.
15
22.8
0.3
20.0
0.2
0.35
0.05
0.8
0.6
0.2
0.1
64
41
40
65
25
80
1
24
0 - 10
1.4
UNIT:mm
NJW1103A
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ASOLUTE MAXIMUM RATINGS (Ta = 25C)
PARAMETER
SYMBOL
RATINGS
UNIT
V
CC
11
V
Supply Voltage
V
DD
7
V
Power Dissipation
Pd
1.37
W
Operating Temperature Range
Topr
-20 to +75
C
Storage Temperature Range
Tstg
-40 to +125
C
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ELECTRICAL CHARACTERSTICS (V
CC
= 10V, V
DD
= 5V, Ta = 25C, Vin = 300mVrms, f = 1kHz)
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
x
x
x
x
OVERALL
Supply Voltage
V
CC
V
DD
8
4.5
9
5
10
5.5
V
Supply Current
I
CC
I
DD
No Signal
No Signal
-
-
25
25
-
-
mA
Reference Voltage
V
REF
No Signal
3.5
4.0
4.5
V
Threshold Voltage
V
thh
V
thl
Digital Input: High
Digital Input: Low
0.7 V
DD
0.0
-
-
V
DD
0.3 V
DD
V
x
x
x
x
INPUT AUTO BALANCE
Capture Range
CPR
-
5
-
Error Correction
CER
-
4
-
x
x
x
x
ADAPTIVE MATRIX
Output Level Accuracy
Relative to Cch
Vol
L,R,S'ch Output
-0.5
0
0.5
dB
Matrix Rejection Relative
MR
L,R,S'ch Output
25
40
-
dB
Headroom
HR-AM
V
CC
=9V, THD=1%
15
17
-
dB
Total Harmonic Distortion
THD-AM
L,R,C,S'ch Output at 4ch Mode
L,R,ch Output at 2ch Mode
-
-
0.05
0.002
0.2
0.05
%
%
Signal to Noise Ratio
SN-AM
Rg=0, wt:CCIR/ARM, 4ch
L,R,ch Output, at 2ch Mode
75
93
80
100
-
-
dB
dB
x
x
x
x
NOISE SEQUENCER
Output Noise Level
Vno
-15.0
-12.5
-10.0
dB
Output Noise Level
Accuracy relative to Cch
Vno
L,R,S'ch Output
-0.5
0.0
0.5
dB
x
x
x
x
MODIFIED B-TYPE NOISE REDUCTION
Voltage Gain
GV-NR
vin=0dBd, f=100Hz
-
9.2
-
dB
Decode Response 1
DEC1
vin=0dBd, f=1kHz
-1.6
-0.1
1.4
dB
2
DEC2
vin=-15dBd, f=1.4kHz
-3.0
-1.5
0.0
dB
3
DEC3
vin=-20dBd, f=1.4kHz
-4.9
-3.4
-1.9
dB
4
DEC4
vin=-40dBd, f=5kHz
-6.8
-5.3
-3.8
dB
Total Harmonic Distortion
THD-NR
vin=0dBd, f=1kHz
-
0.07
0.3
%
Headroom
HRNR
V
CC
=9V, THD=1%
15
17
-
dB
Signal to Noise Ratio
SNNR
Rg=0, weightted:CCIR/ARM
73
78
-
dB
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NJW1103A
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ELECTRICAL CHARACTERSTICS (V
CC
= 10V, V
DD
= 5V, Ta = 25C, Vin = 300mVrms, f = 1kHz)
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
x
x
x
x
OTHER SURROUND
Total Harmonic Distortion
THD-OS
vin=0dBd, f=1kHz
L+R,L-R Output
-
0.05
0.2
dB
Headroom
HR-OS
V
CC
=9V, THD=1%
L+R,L-R Output
15
17
-
dB
Signal to Noise Ratio
SN-OS
Rg=0, weighted:CCIR/ARM
L+R,L-R Output
85
90
-
dB
x
x
x
x
Cch, Sch TRIMMER
Full Scale
FS
Digital Input = -31dB
-25
-31
-37
dB
Trimmer Step
NL
Digital Input = -1, -2, -4,
-8, -16dB
-0.6
1.0
1.4
dB
x
x
x
x
DIGITAL TIME DELAY
12.4
15.4
18.4
ms
17.0
20.0
23.0
ms
25.6
28.6
31.6
ms
38.0
41.0
44.0
ms
46.2
49.2
52.2
ms
137.5
147.5
157.5
ms
Delay Time
Td
186.6
196.6
206.6
ms
Total Gain
Gv
-3.0
0.0
3.0
dB
Td=15.4ms
-
0.3
0.6
%
Td=20.0ms
-
0.3
0.6
%
Td=28.6ms
-
0.5
1.0
%
Td=41.0ms
-
0.6
1.2
%
Td=49.2ms
-
0.7
1.4
%
Td=147.5ms
-
1.5
3.0
%
Total Harmonic Distortion
THD
30kHz LPF
Td=196.6ms
-
2.0
4.0
%
Maximum Output Voltage
Vomax
30kHz LPF,THD=10%
0.7
1.0
-
Vrms
Td=15.4ms
-
-92
-80
dBV
Td=20.0ms
-
-92
-80
dBV
Td=28.6ms
-
-92
-80
dBV
Td=41.0ms
-
-90
-75
dBV
Td=49.2ms
-
-90
-75
dBV
Td=147.5ms
-
-82
-67
dBV
Output Noise Voltage
No
Rg=620
vin=0Vrms
JIS-A
Td=196.6ms
-
-77
-62
dBV
x
x
x
x
DELAY VOLUME
Total Gain
G
V
Vol. = Max
0
3
6
dB
Maximum Attenuation
ATTmax
Delay Off Mode, Vol=Min,
JIS-A
0
-70
-60
dB
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
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