NJW1301
SIGNAL PROCESSOR FOR COLOR TFT FOR NTSC
s
GENERAL DESCRIPTION
The NJW1301
is a color TFT signal processor for NTSC.It
contains Y/C separator circuit, color signal modulator, count
down circuit , RGB demodulator , RGB interface , side black
control circuit, PWM control circuit and common pole driver,
required by color TFT signal processing.
It is suitable for car navigation system with color TFT panel.
sPACKAGE
OUTLINE
NJW1301FK1
s
FEATURES
qInternal
Y/C separator circuit
qNTSC
matching for Composite
qInternal
one systems input for analog RGB for NTSC/PAL
qInternal
count down circuit at H,V
qInternal
enhancer circuit
qInternal
Side black control circuit
qInternal
PWM control circuit
qInternal
γ2
point correction circuit
qInternal
Color TFT Common pole driver
qBi-CMOS
technology
qPackage
Outline
LQFP64
s
BLOCK DIAGLAM
PWMFILTER
CSYNCOUT
PWMCON
PWMOUT
SYNCSW
50
SYNCIN1
REGOUT
VCOIN
VDD
VD
64
63
62
61
60
59
58
57
56
55
54
53
52
51
49
HD
VCOMAMP
VCC3
VCOMIN
VCOMCENT
VCOMFB
VCOMOUT
VEE1
ACCDET
FADJ
KILLER
PWMREF
TINT
CIN
COLOR
VCXOOUT
1
2
SYNCIN2
48
47
VCOOUT
GND2
GND1
LPF
VS
PWM
OSC
32f
H
VCO
AFC
SYNCSEP
BOUT
BDET
GOUT
GDET
ROUT
RDET
SIDEBLACK
FRP
BRIGHT
SUBVG1B
SUBVG1R
SUBVG2B
SUBVG2R
VG1
VG2
EXTINR
REG
3
COMMON DRIVER
46
45
H
COUNT DOWN
V
COUNT DOWN
4
5
6
7
8
9
10
11
12
13
44
43
VREF
ALTAMP
BRIGHT
GAMMA
CORRECT
GAMMA
CORRECT
GAMMA
CORRECT
42
41
40
39
CONTROL
GAMMA
ACC
KILLER
DEMOD
HPF
COLOR
MATRIX
38
37
36
35
34
APC
CLAMP
CLAMP
PICTURE
CONT RAST
TINT
14
15
16
VCXO
TRAP
INT/EXT SW
33
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
APC
TRAP
YINH
PICTURE
VCXOIN
GACLAMPB
YCLAMP
EXTINB
YOUT
VCC1
SW
VIDEOIN
GACLAMPG
CONTRAST
EXTING
GACLAMPR
Ver.02
-1-
NJW1301
s
ABSOLUTE MAXIMUM RATINGS
PARAMETERS
Supply Voltage 1
Supply Voltage 2
Supply Voltage 3
Supply Voltage 4
Power Dissipation
Each Adjustment Terminal
SYNC OUT Voltage
Picture Input Voltage
External Input Voltage
FRP Input Signal Voltage
SYNC Input Voltage
Analog RGB Input Signal
Operating Temperature Range
Storage Temperature Range
SYMBOL
V
CC
1-GND1
V
CC
3-V
EE
1
V
DD
-GND1
V
EE
1-GND1
P
D
V
IN
V
SD
V
VDIN
EXT
IN
FRP
IN
SYNC
IN
RGB
IN
Topr
Tstg
RATINGS
8.0
15.0
7.0
-7.0
700
V
CC
1
V
EE
1+15.0
3.0
V
CC
1
V
CC
1
V
CC
1
3.0
-30 to +85
-40 to +125
(Ta=25°C)
°
UNIT
V
V
V
V
mW
V
V
V
P-P
V
V
V
V
PP
°C
°C
Ver.02
-2-
NJW1301
s
RECOMMENDED OPERATING CONDITION (Ta=25°C)
°
PARAMETER
SYMBOL
-
-
Supply Voltage Range
-
-
Y Input Signal Voltage
C Input Signal Voltage
Analog RGB Input Signal
SYNC Input Signal
Gamma 1 Adjust Voltage
Gamma 2 Adjust Voltage
Bright Adjust Voltage
PWM Control Voltage
Y
IN
C
IN
RGB
IN
SYNC
IN
VG1
VG2
BRIGHT
PWMCONT
V
EE
1-GND1
V
DD
-GND1
Pedestal-White
Amplitude of Burst Signal
-5.25
4.75
0.30
0.10
0.6
0.3
1.5
1.5
1.8
0
-5.0
5.00
0.35
0.15
0.7
1.0
-
-
-
-
-4.75
5.25
0.40
0.20
0.8
1.5
3.5
3.8
3.4
5
V
V
V
P-P
V
P-P
V
P-P
V
P-P
V
V
V
V
TEST CONDITION
V
CC
1-GND
V
CC
3-V
EE
1
MIN.
4.75
11.00
TYP.
5.00
12.00
MAX.
5.25
13.00
UNIT
V
V
(Point 1) When suspected SYNC input to NJW1301, necessary on 5H(1H:horizontal term ,about 63.5us) of
pulth width of suspected SYNC.
(Point 2) Investigation Crosstalk level when design for depend to application.
(Point 3) Do not input the intermediate step signal at External terminal to use OSD signal for EXTRGB.
The EXRRGB accept only white(0.7V,white 100%) – black(0V)signal.
Ver.02
-3-
NJW1301
s
ELECTRICAL CHARACTERICS
(Ta=25°C,V
CC
1=5V,V
CC
3=7V,V
DD
=5V,V
EE
1=-5V,TP2=TP5=TP27=TP40=2.5V,TP13=2.9V,TP15=3.1V,
TP34=3.0V,TP35=1V,TP26=TP42=5V,TP50=5V,TP58=4.7V,SW14=SW25=SW26=SW50=L)
PARAMETERS
Operating Current 1
Operating Current 2
Operating Current 3
Operating Current 4
SYMBOL
I
CC
1
I
CC
3
I
DD
4
I
EE
1
V
CC
1
V
CC
3
V
DD
V
EE
1
SG1 applied to TP29 ,TP31 and
TP33,SG10 applied to TP41,SG2
applied to TP51,
define the each amplitude
(BLK-WHT) at SW26=H, and
TP27=0V,2.5V,5V as V1,V2 and V3,
measure the each output of the
non-inverting
G
CT1
=20LOG(V1/V2)
G
CT2
=20LOG(V3/V2)
Rout,Gout,Bout terminals.
SG3(100KHz,1.8MHz) applied to
TP19,SG10 applied to TP41,SG2
applied to TP51,measure amplitude
on TP46 of non-inverting.
Define the each gain on SG3 of sin
signal of frequency as
G(1.8M),G(100K)
when SW14=L,SW25=H,TP25=0V
G
PSMIN1
=G(1.8M)-G(100K)
when SW14=L,SW25=H,TP25=5V
G
PSMAX1
=G(1.8M)-G(100K)
SW14=H,TP14(B)=0V,
SG3(100KHz,1.8MHz) applied to
TP19,SG10 applied to TP41,SG2
applied to TP51,measure amplitude
of non-inverting of TP46.
Define the each gain on SG3 of sin
signal of frequency as
G(1.8M),G(100K)
when SW14=H,SW25=H,TP25=0V
G
PSMIN2
=G(1.8M)-G(100K)
when SW14=H,SW25=H,TP25=5V
G
PSMAX2
=G(1.8M)-G(100K)
SW14=H,TP14(B)=0V,
SG3(100KHz,3.579545MHz)
applied to TP19,SG2 applied to
TP51,when define the each
amplitude of TP22 at SG3
(3.579545MHz),SG3(100KHz)
as B1,B2.
G
CF
=20*LOG(B1/B2)
TEST CONDITIONS
MIN.
-
-
-
-11.8
TYP.
45.0
5.8
6.0
-7.5
MAX
60.0
7.7
7.5
-
UNIT
mA
mA
mA
mA
G
CT
1
Contrast Adjust Gain
Variable Range
G
CT
2
-
-12.0
-9.0
dB
1.0
2.5
-
Image Quality Adjust
Variable Minimum
Range(Y/C)
G
PSMIN
1
-
-2.0
2.0
dB
Image Quality Adjust
Variable Maximum
Range(Y/C)
G
PSMAX
1
5.0
7.5
-
Image Quality Adjust
Variable Minimum
Range(Composite)
G
PSMIN
2
-
4.0
0.0
dB
Image Quality Adjust
Variable Maximum
Range(Composite)
G
PSMAX
2
3.0
5.5
-
Trap attenuation
G
CF
-
-35
-20
dB
Ver.02
-4-
NJW1301
s
ELECTRICAL CHARACTERICS
(Ta=25°C,V
CC
1=5V,V
CC
3=7V,V
DD
=5V,V
EE
1=-5V,TP2=TP5=TP27=TP40=2.5V,TP13=2.9V,TP15=3.1V,
TP34=3.0V,TP35=1V,TP26=TP42=5V,TP50=5V,TP58=4.7V,SW14=SW25=SW26=SW50=L)
PARAMETERS
SYMBOL
TEST CONDITIONS
SG10 applied to TP41,
SG6(3.579545MHz,typical
swing150mVpp)
applied to TP14,SG2 applied to
TP51.Define the each amplitude
on TP46 at 0dB,+6dB,-25dB toward
SG6 as Vo1,Vo2 and Vo3.
G
A1
=20LOG(Vo2/Vo1)
G
A2
=20LOG(Vo3/Vo1)
SG10 applied to TP41,
SG6(3.579545MHz,typical
swing150mVpp)
applied to TP14,SG2 applied to
TP51.Define the each amplitude
on TP46 at TP15=0V,3.1V,5.0V as
Vo1,Vo2 and Vo3.
G
C1
=20LOG(Vo1/Vo2)
G
C2
=20LOG(Vo3/Vo2)
SG10 applied to TP41,
SG6(3.579545MHz,150mVpp)
applied to TP14,
variable the BURST frequency until
the voltage on TP11 drops below
2V. Work out the difference between
the frequency at that time and
3.579545MHz.
f
A1
=when approach BURST
frequency from low frequency.
f
A2
= when approach BURST
frequency from high frequency
SG3(350mVpp,3.579545MHz)
applied to TP19,SG2 applied to
TP51,SG10 applied to TP41,
SW14=H. Increase TP14(B) ,
change from composite to Y/C.
Then measure the voltage on
TP14(B).
SG3(350mVpp,3.579545MHz)
applied to TP19,SG2 applied to
TP51,SG10 applied to TP41,
SW14=H. Decrease TP14(B),
change from Y/C to composite.
Then measure the voltage on
TP14(B).
MIN.
TYP.
MAX
UNIT
G
A
1
ACC Characteristic
(NTSC)
G
A
2
-
0.0
2.0
dB
-12.5
-7.5
-
G
c
1
Color Control Gain
Variable Range
G
c
2
-70
-50
-40
dB
0.7
2.0
-
f
A
1
-
-2900
-700
APC Capture Range
f
A
2
Hz
+700
+1500
-
Composite→Y/C
input switching voltage
V
TH
CY
1.3
1.6
1.9
V
Y/C→Composite
input switching volyage
V
TH
YC
0.7
1.0
1.3
V
Ver.02
-5-
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