/home/web/doc/html/njrc/193522
NJW1149A
1
Audio Processor with Sound Enhancement and TruSurround 5.1ch Virtualizer
s
s
s
s
GENERAL DESCRIPTION
The
NJW1149A
is an audio processor with BBE sound enhancement
and SRS Labs' TruSurround 5.1 channel virtualizer. It includes all of
functions processing audio signal for TV, such as volume, balance, mute,
tone control, eala NJRC surround and simulated stereo functions. All of
internal status and variables are controlled by I
2
C BUS.
The NJW1149 is available for Virtual Dolby Surround or Virtual Dolby
Digital with Dolby Pro Logic or Dolby Digital system*.
s
s
s
s
FEATURES
q
Operating Voltage
8 to 10 V
q
I
2
C BUS Interface
q
TruSurround 5.1ch. / 4ch. / 2ch. Inputs
q
BBE
0dB to +15dB(0.5dB/step)
q
eala (surround effect ; 2 steps) and Simulated Stereo
q
Volume
0 to -80dB, MUTE (0.33dB/step)
q
Balance
0 to -30dB, MUTE (1dB/step)
q
Tone Control
-15dB to +15dB(0.5dB/step)
q
Bi-CMOS Technology
q
Package Outline
QFP64-H1
s
s
s
s
BLOCK DIAGRAM
s
s
s
s
PACKAGE OUTLINE
NJW1149AFH1
*
For use in Virtual Dolby Surround(VDS) and/or Virtual Dolby Digital(VDD) products, please contact
Dolby Laboratories for licensing information. Dolby and the double-D symbol are trademarks of Dolby
Laboratories Licensing Corporation. Licensing and application information may be obtained from Dolby
Lab.
S
p
ace2
CT
S1
CT
S2
CTL
CVA
CTH
CBH
CSR
I
2
C B
u
s Interface
eal
a
R IN
T
O
N
E
-Lb
OUT
a
Outb
TO
N
E
-
H
b
eal
a F
i
l
Vr
e
f
V+
GND
BBE-
Hb
BBE-
L
b
FL IN
RL IN
C IN
TS
FI
L
1
TS
FI
L
3
T
S
F
I
L2
LF
OU
T
a
LF
IN
a
LF
OU
T
b
LF
IN
b
C
enter
S
p
ace1
T
r
uS
ur
rou
nd
ATT
+
-
AG
C
AG
C
RRIN
SW IN
Vol1
Vol1
BBE
BBE
Tone
Vol2
Vol2
Tone
Buffer
Buffer
Bias
CBL
CVB
SCL
SDA
T
O
N
E
-La
TO
N
E
-
H
a
BBE-
Ha
BBE-
L
a
ATT
FR IN
L IN
V
r
efo
NJW1149A
2
s
s
s
s
PIN FUNCTION
No. SYMBOL
FUNCTION
No.
SYMBOL
FUNCTION
1 TS12
TruSurround Filter Capacitor 12
33
CBH
BBE High switching noise rejection Capacitor
2 TS13
TruSurround Filter Capacitor 13
34
LFOUTb
Buffer Output for Bch Low Pass Filter
3 TS14
TruSurround Filter Capacitor 14
35
LFINb
Buffer Input for Bch Low Pass Filter
4 SPACE1
SPACE Volume1
36
OUTb
Bch Output
5 SPACE2
SPACE Volume2
37
TONE-Lb
Bch TONE Bass Filter Capacitor
6 CENTER
CENTER Volume
38
TONE-Hb
Bch TONE Treble Filter Capacitor
7 VREFO
Reference Voltage Output Capacitor
39
BBE2b
Bch BBE Low-Pass Filter Capacitor
8 ealaFil
eala Filter Capacitor
40
BBE1b
Bch BBE High-Pass Filter Capacitor
9 BBE1a
Ach BBE High-Pass Filter Capacitor
41
CSR
eala switching noise rejection Capacitor
10 BBE2a
Ach BBE Low-Pass Filter Capacitor
42
N.C.
No Connection
11 TONE-Ha
Ach TONE Treble Filter Capacitor
43
CTS2
TruSurround switching noise rejection Capacitor 2
12 TONE-La
Ach TONE Bass Filter Capacitor
44
CTS1
TruSurround switching noise rejection Capacitor 1
13 OUTa
Ach Output
45
TS33
TruSurround Filter Capacitor 33
14 LFINa
Buffer Input for Ach Low Pass Filter
46
TS32
TruSurround Filter Capacitor 32
15 LFOUTa
Buffer Output for Ach Low Pass Filter
47
TS31
TruSurround Filter Capacitor 31
16 AGC
AGC Smoothing Filter Capacitor
48
ATTC
Center Attenuation Resistor
17 CVA
Ach Volume switching noise rejection Capacitor
49
N.C.
No Connection
18 CVB
Bch Volume switching noise rejection Capacitor
50
ATTS2
Surround Attenuation Resistor 2
19 SDA
I
2
C Data Input
51
ATTS1
Surround Attenuation Resistor 1
20 SCL
I
2
C Clock Input
52
TS23
TruSurround Filter Capacitor 23
21 GND
Ground
53
TS22
TruSurround Filter Capacitor 22
22 N.C.
No Connection
54
TS21
TruSurround Filter Capacitor 21
23 N.C.
No Connection
55
SWIN
SW ch Input
24 N.C.
No Connection
56
CIN
C ch Input
25 N.C.
No Connection
57
RRIN
Rear-R ch Input
26 N.C.
No Connection
58
RLIN
Rear-L ch Input
27 N.C.
No Connection
59
FRIN
Front-R ch Input
28 V+
Power Supply
60
FLIN
Front-L ch Input
29 VREF
Reference Voltage stabilizing Capacitor
61
RIN
R ch Input
30 CTL
Tone Control Bass switching noise rejection Capacitor
62
LIN
L ch Input
31 CTH
Tone Control Treble switching noise rejection Capacitor
63
TS11
TruSurround Filter Capacitor 21
32 CBL
BBE Low switching noise rejection Capacitor
64
N.C.
No Connection
NJW1149A
3
s
s
s
s
ABSOLUTE MAXIMUM RATING (Ta=25
C)
PARAMETER SYMBOL
RATING
UNIT
Supply Voltage
V
+
12 V
Power Dissipation
P
D
1400
*
mW
Operating Temperature Range
Topr
-20 to +75
C
Storage Temperature Range
Tstg
-40 to +125
C
*(Note) EIA/JEDEC STANDARD Test board (76.2 x 114.3 x 1.6mm, 2-Layers, FR-4) mounting
s
s
s
s
ELECTRICAL CHARACTERISTICS
(Ta=25
C, V
+
=9V, R
L
=47k
, Vin=100mVrms/1kHz
MODE ; VOL=0dB, BAL=0dB,TS=By-Pass, AGC=OFF, BBE=OFF, Tone=0dB, eala=By-Pass)
PARAMETER SYMBOL
TEST
CONDITION
MIN.
TYP.
MAX.
UNIT
Operating Voltage
V
+
8.0
9.0
10.0
V
Supply Current
I
CC
No
Signal
- 30 45 mA
Reference Voltage
V
REF
No
Signal
4.0 4.5 5.0 V
Maximum Input Voltage
V
IM
VOL=-20dB,THD=10% 2.8 3.0 - Vrms
Maximum Output Voltage
V
OM
OUTPUT
VOL=0dB,THD=1%
- 2.5 - Vrms
Channel Balance
G
CB
VOL=0dB
-1.5 0.0 1.5 dB
Balance Boost A
G
BBA
CHS="0",BAL=Mute
-2.0 0.0 2.0 dB
Balance Cut A
G
BCA
CHS="1",BAL=Mute
Vin = 1Vrms
- - -70
dB
Balance Boost B
G
BBB
CHS="1",BAL=Mute
-2.0 0.0 2.0 dB
Balance Cut B
G
BCB
CHS="0",BAL=Mute
Vin = 1Vrms
- - -70
dB
Total Harmonic Distortion
THD
Vo=0.5Vrms
BW=400Hz to 30kHz
- - 0.5 %
Maximum Voltage Gain
G
VMAX
VOL=
0dB
-2.0 0.0 2.0 dB
Minimum Voltage Gain
G
VMIN
VOL=
Mute
-
- -70 dB
Channel Separation
CS
Vin = 1Vrms
-
-
-70
dB
Output Noise 1
V
NO1
VOL = 0dB
BW=400Hz to 30kHz
-
-
-90
(31.6)
-85
(56.2)
dBV
(
Vrms)
Output Noise 2
V
NO2
VOL = Mute
BW = 400Hz to 30kHz
-
-
-106
(5.0)
-96
(15.8)
dBV
(
Vrms)
BW
:
Band
Width
x
x
x
x
TONE CONTROL CHARACTERISTICS
(Ta=25
C, V
+
=9V, R
L
=47k
, Vin=100mVrms/1kHz
MODE ; VOL=0dB, BAL=0dB, TS=By-Pass, AGC=OFF, BBE=OFF, eala=By-Pass)
PARAMETER SYMBOL
TEST
CONDITION
MIN.
TYP.
MAX.
UNIT
Treble Boost Gain
G
HFBST
TREB=+15dB,
f=10kHz
12.5 15.0 17.5 dB
Treble Boost Flat
G
HFFLT
TREB=0dB,f=10kHz
-2.0 0.0 2.0 dB
Treble Boost Cut
G
HFCUT
TRBE=-15dB,
f=10kHz
-17.5 -15.0 -12.5 dB
Bass Boost Gain
G
LFBST
BASS=+15dB,
f=100Hz 12.5 15.0 17.5 dB
Bass Boost Flat
G
LFFLT
BASS=0dB,
f=100Hz
-2.0 0.0 2.0 dB
Bass Boost Cut
G
LFCUT
BASS=-15dB,
f=100Hz
-17.5 -15.0 -12.5 dB
NJW1149A
4
x
x
x
x
AGC CHARACTERISTICS
(Ta=25
C, V
+
=9V, R
L
=47k
MODE ; VOL=0dB, BAL=0dB, TS=By-Pass, AGC=ON, BBE=OFF, Tone=0dB, eala=By-Pass)
PARAMETER SYMBOL
TEST
CONDITION
MIN.
TYP.
MAX.
UNIT
AGC Boost
G
AGCBST
Vin=50mVrms,
f=1kHz
1.5 3.5 5.5 dB
AGC Flat 1
G
AGCFLT1
Vin=300mVrms,
f=1kHz
-2.5 0.0
2.5
dB
AGC Flat 2
G
AGCFLT2
Vin=400mVrms,
f=1kHz
-2.5 0.0
2.5
dB
AGC Flat 3
G
AGCFLT3
Vin=500mVrms,
f=1kHz
-2.5 0.0
2.5
dB
AGC Flat 4
G
AGCFLT4
Vin=600mVrms,
f=1kHz
-2.5 0.0
2.5
dB
AGC Cut
G
AGCCUT
Vin=2Vrms,
f=1kHz
-14 -10 -6.0
dB
x
x
x
x
BBE CHARACTERISTICS
(Ta=25
C, V
+
=9V, R
L
=47k
, Vin=100mVrms/1kHz
MODE ; VOL=0dB, BAL=0dB, TS=By-Pass, AGC=OFF, Tone=0dB, eala=By-Pass)
PARAMETER SYMBOL
TEST
CONDITION
MIN.
TYP.
MAX.
UNIT
Low Boost Gain
G
BBELOW
BBE-LOW =+15dB, f=50Hz
12.5 15 17.5 dB
High Boost Gain
G
BBEHIGH
BBE-HIGH =+15dB, f=10kHz
12.5 15 17.5 dB
x
x
x
x
eala CHARACTERISTICS
(Ta=25
C, V
+
=9V, R
L
=47k
, Vin=100mVrms/1kHz
MODE ; VOL=0dB, BAL=0dB, TS=By-Pass, AGC=OFF, BBE=0dB, Tone=0dB)
PARAMETER SYMBOL
TEST
CONDITION
MIN.
TYP.
MAX.
UNIT
Simulated Stereo A
G
SIMA
LIN+RINOUTa, f=1KHz, SIM
1.0 3.0 5.0 dB
Simulated Stereo B
G
SIMB
LIN+RINOUTb, f=1KHz, SIM
1.0 3.0 5.0 dB
Surround 3D1
G
3D1
LIN
OUTa, f=100Hz, SR2
5.5 7.5 9.5 dB
Surround 3D2
G
3D2
LIN
OUTa, f=10KHz, SR2
-2.0 0.0 2.0 dB
Surround 3D3
G
3D3
LIN
OUTb, f=100Hz, SR2
0.5 2.5 4.5 dB
Surround 3D4
G
3D4
LIN
OUTa, f=100Hz, SR1
3.5 5.5 7.5 dB
x
x
x
x
TruSurround CHARACTERISTICS
(Ta=25
C, V
+
=9V, R
L
=47k
, Vin=100mVrms/1kHz
MODE; VOL=0dB, BAL=0dB, AGC=OFF, BBE=OFF, Tone=0dB, eala=By-Pass)
PARAMETER SYMBOL
TEST
CONDITION
MIN.
TYP.
MAX.
UNIT
Mix Down Gain
G
TSMX
FLIN
LTS, f=1KHz
Mix Down
-5 -3 -1 dB
By-Pass Gain
G
TSBP
LIN
LTS, f=1KHz
By-Pass
-2 0 2 dB
Tru Front Gain
G
TSF
FLIN
LTS, f=125Hz
TS5.1ch
-0.5 1.5 3.5 dB
Tru Rear Gain 1
G
TSR1
RLIN
LTS, f=125Hz
TS5.1ch
1 3 5 dB
Tru Rear Gain 2
G
TSR2
RLIN
LTS, f=125Hz
TS4ch
2 4 6 dB
Center Gain
G
TSC
CIN
LTS, f=1KHz
TS4ch
-5 -3 -1 dB
Sub Woofer Gain
G
TSS
SWIN
LTS, f=1KHz
TS4ch
-2 0 2 dB
Feed Through Gain
G
THROUGH
LIN
LTS, f=1KHz
SRS 3D,Space=Min, Center=Min
-20 -18 -16 dB
L+R Gain
G
L+R
LIN
RTS, f=1KHz
SRS 3D,Space=Min, Center=Max
-15 -13 -11 dB
L-R Gain
G
L-R
LIN
LTS, f=125Hz
SRS 3D,Space=Max, Center=Min
-2 0 2 dB
Passive Gain 1
G
TSP1
LIN
LTS, f=125Hz
TS2ch, Space=Max, Center=Max
4.0 6.0 8.0 dB
Passive Gain 2
G
TSP2
LIN
RTS, f=125Hz
TS2ch, Space=Max, Center=Max
-5.5 -3.5 -1.5 dB
NJW1149A
5
s
s
s
s
I
2
C BUS CHARACTERISTICS (SDA, SCL)
I
2
C BUS Load Conditions: Pull up resistance 4k
(Connected to +5V), Load capacitance 200pF (Connected to GND)
PARAMETER SYMBOL
MIN.
TYP.
MAX.
UNIT
High Level Input Voltage
V
IH
3.0 - 5.0 V
Low Level Input Voltage
V
IL
0 -
1.5
V
High Level Input Current
I
IH
-
-
10
A
Low Level Input Current
I
IL
-
-
10
A
Low Level Output Voltage (3mA at SDA pin)
V
OL
0 -
0.4
V
Maximum Output Current
I
OL
-3.0 - - mA
Maximum Clock Frequency
f
SCL
- -
100
kHz
Data Change Minimum Waiting Time
t
BUF
4.7 - - s
Data Transfer Start Minimum Waiting Time
t
HD:STA
4.0 - - s
Low Level Clock Pulse Width
t
LOW
4.7 - - s
High Level Clock Pulse Width
t
HIGH
4.0 - - s
Minimum Start Preparation Waiting Time
t
SU:STA
4.7 - - s
Minimum Data Hold Time
t
HD:DAT
0 - 3.45 s
Minimum Data Preparation Time
t
SU:DAT
250 - - ns
Rise Time
t
R
-
-
1.0
s
Fall Time
t
F
-
-
300
ns
Minimum Stop Preparation Waiting Time
t
SU:STO
4.0 - - s
SDA
SCL
t
BUF
t
HD:STA
Sr
P
t
LOW
t
R
t
HD:DAT
t
HIGH
t
F
t
SU:DAT
S
P
t
SU:STA
t
SU:STO
t
HD:STA
PDF 
ZIP