Mitsubishi M52390 Ntsc/pal encoder Datasheet

MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
DESCRIPTION
PIN CONFIGURATION (TOP VIEW)
The M52390FP is a single-chip semiconductor integrated circuit
which has a function to convert R/G/B signal to NTSC/PAL
composite video signal and the superimpose function.
FEATURES
Superimpose function
•Ys IN (control input) is used for switching 2 input signals, VIDEO
IN and RGB IN.
•Because high-speed analog switch is built-in, even microscopic
characters can be inserted.
•Built-in an APC circuit to adjust tint of the parent picture (VIDEO
IN) and the RGB encode signal automatically.
Overall functions
•A drive circuit (75Ω) can be configured with one transistor by
outputting the video output signal at 2VP-P.
•This device can be used for both NTSC system and PAL system.
1
20 LPF fc CONT.
2
19 COLOR CONT.
HHK
3
18 R IN
CLAMP R 4
17 G IN
M52390FP
RGB encode
•LPF for chroma difference signal is built-in. Cutoff frequency
control is possible by connecting a resistor externally.
•Because VCA circuit is built-in, gain control at chroma block is
possible.
•Carrier leak is on a low level because of built-in high-precision
modulation circuit and clamp circuit.
•Burst signal and sync signal are generated within the IC.
GND
C.Sync IN
3fsc TRAP
5
CLAMP B
6
16 B IN
VCXO
7
APC FILTER
8
13 Vreg
VIDEO IN
9
12 Ys IN
15 Y OUT
14 Y IN
VIDEO OUT 10
11 VCC
Outline 20P2N-A
(Lead pitch:1.27mm)
APPLICATION
TV, VCR, monitor, and other AV equipments
RECOMMENDED OPERATING CONDITION
Supply voltage range .................................................... 4.7 to 5.3V
Rated supply voltage ................................................................ 5V
BLOCK DIAGRAM
COLOR
CONT.
LPF fc CONT.
20
R IN
0.72VP-P
19
18
G IN
B IN
Y OUT
Y IN
Vreg
17
16
15
14
13
12
VREG
SWV
CONT
APC SW
SW V
1VP-P
CLAMP R
VCA
CONT
CLAMP G
CLAMP
R
C.SYNC
R-Y
VCA
R
VCA
B
SYNC
ADD
MATRIX
C.SYNC
1/2fh
1/2
CLAMP
B
BFP(CP)
MMV
BURST
ADD R
MOD
R
NTSC
ADD
Y/C
MIX
BPF
NTSC : OFF
PAL
(Y : 6dB)
LIM
R
BURST
ADD B
C.SYNC
LPF
B
11
0.5VP-P
Y
LPF
R
VCC=5V
CLAMP B
C.SYNC
BFP
LPF
CONT
Ys IN
MOD
B
ADDd
BPFd
HPF 2
AMP 1
HPF 1
1/2fh
LIM
B
X 1/2fh at PAL
IDENT
BFP
90˚
SIFT
HHK
Y/C
MIXd
AMP 2
VCXO
APC
CLAMP V
BFP
2VP-P
1VP-P
1
2
3
4
5
6
7
8
GND
C.Sync IN
HHK
CLAMP R
3fsc TRAP
CLAMP B
VCXO
APC FILTER
6dB
AMP
9
VIDEO IN
10
VIDEO OUT
MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
ABSOLUTE MAXIMUM RATINGS (Ta=25˚C, unless otherwise noted)
Symbol
VCC
Supply voltage
Parameter
Pd
Power dissipation
Topr
Tstg
Operating temperature
Storage temperature
K
Thermal derating (Ta≥25˚C)
Ratings
7
Unit
V
620
(900)
mW
-20 to 75
-40 to 125
˚C
˚C
6.2
(9.0)
mW/˚C
Values in parentheses are those measured when the IC is mounted on a standard board.
ELECTRICAL CHARACTERISTICS (Ta=25˚C, Vcc=5V, Sa2=sync input, unless otherwise noted)
Test
No.
Symbol
Parameter
Test conditions
Test
point
Min.
Limits
Typ.
Max.
Unit
1
ICC1
Current dissipation 1
NTSC MODE
12 5V
11
35
50
65
mA
2
ICC2
Current dissipation 2
PAL MODE (SW13 : ON)
12 5V
11
37
52
67
mA
ER
EG
EB
EY
Matrix ratio R
Matrix ratio G
Matrix ratio B
Y level at RGB 100%
SG18 : 1VP-P
SG17 : 1VP-P
SG16 : 1VP-P
SG16, SG17, SG18 : 0.71VP-P
15
15
0.27
0.53
0.09
0.63
0.30
0.59
0.11
0.71
0.33
0.65
0.13
0.79
VP-P
VP-P
VP-P
VP-P
7
FR
SG18 : 500kHz/5MHz, 0.5VP-P CW
R IN - Y OUT frequency characteristics SW16, 17, 18 : ON
2 0V (SG2 : OFF)
15
-1.5
0
1.5
dB
8
FG
G IN - Y OUT frequency characteristics SW16, 17, 18 : ON
15
-1.5
0
1.5
dB
SG16 : 500kHz/5MHz, 0.5VP-P CW
SW16, 17, 18 : ON
2 0V (SG2 : OFF)
15
-1.5
0
1.5
dB
NTSC MODE
15
257
286
315
mVP-P
PAL MODE (SW13 : ON)
15
270
300
330
mVP-P
RGB IN
3
4
5
6
Y OUT
15
15
SG17 : 500kHz/5MHz, 0.5VP-P CW
2
FB
9
10
11
Y IN
B IN - Y OUT frequency characteristics
Sync level 1
VS1
Sync level 2
VS2
VIDEO OUT
0V (SG2 : OFF)
12
GY
Y IN - VIDEO OUT Gain
SG14 : 500kHz, 0.5VP-P CW
12 5V
10
10.5
12
13.5
dB
13
FY
Y IN - VIDEO OUT frequency
characteristics
SG14 : 5MHz, 0.5VP-P CW
12 5V
10
-1.5
0
1.5
dB
5
210
310
410
ns
5
210
310
410
ns
RGB IN
TRAP
14
DL(R-Y)
Delay (R-Y)
SG18 : 1VP-P
15 5V, 12 5V,
7
0V
15
DL(B-Y)
Delay (B-Y)
SG16 : 1VP-P
15 5V, 12 0V,
7
0V
16
GH(R-Y)
Gain (R-Y) VCA:Hi
SG18 : 500kHz, 0.5VP-P CW
SW4, 6, 16, 17, 18 : ON
15 5V, 12 5V, 7 0V, 19 5V/2.5V
2 0V (SG2 : OFF)
5
1
2
3.5
dB
SG16 : 500kHz, 0.5VP-P CW
SW4, 6, 16, 17, 18 : ON
15 5V, 12 0V, 7 0V, 19 5V/2.5V
2 0V (SG2 : OFF)
5
1
2
3.5
dB
SG18 : 500kHz, 0.5VP-P CW
SW4, 6, 16, 17, 18 : ON
15 5V, 12 5V, 7 0V, 19 0V/2.5V
2 0V (SG2 : OFF)
5
-4.5
-3
-2
dB
17
GH(B-Y)
18
GL(R-Y)
Gain (B-Y) VCA:Hi
Gain (R-Y) VCA:Lo
MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
ELECTRICAL CHARACTERISTICS (cont.)
Test
No.
19
Symbol
GL(B-Y)
RGB IN
Parameter
Test conditions
SG16 : 500kHz, 0.5VP-P CW
SW4, 6, 16, 17, 18 : ON
15 5V, 12 0V, 7 0V, 19 0V/2.5V
2 0V (SG2 : OFF)
Gain (B-Y)
VCA:Lo
Test
point
Min.
Limits
Typ.
Max.
5
-4.5
-3
-2
dB
Unit
VIDEO OUT
20
VB1
NTSC burst level
NTSC MODE
12 5V
10B
243
286
329
mVP-P
21
VB2
PAL burst level
PAL MODE (SW13 : ON)
12 5V
10B
255
300
345
mVP-P
22
VB3
PAL burst level difference
PAL MODE (SW13 : ON)
12 5V
10B
-30
0
30
mVP-P
23
PPB
PAL burst phase difference
PAL MODE (SW13 : ON)
12 5V
10B
82
90
98
deg
24
VR/B
R/burst level ratio
SG18 : 0.71VP-P
12 5V
10B
2.68
3.15
3.62
25
VG/B
G/burst level ratio
SG17 : 0.71VP-P
12 5V
10B
2.51
2.95
3.39
26
VB/B
B/burst level ratio
SG16 : 0.71VP-P
12 5V
10B
1.91
2.25
2.59
27
VC/B
Carrier leak in NTSC mode
NTSC MODE
12 5V
10B
-
-40
-28
dB
28
PR/B
R/burst phase difference
SG18 : 0.71VP-P
12 5V
10B
96
104
112
deg
29
PG/B
G/burst phase difference
SG17 : 0.71VP-P
12 5V
10B
233
241
249
deg
30
PB/B
B/burst phase difference
SG16 : 0.71VP-P
12 5V
10B
339
347
355
deg
SG9 : 500kHz, 0.5VP-P CW
SW9 : ON
12 0V, 2 0V (SG2 : OFF)
10
5
6
7
dB
10
-1.5
0
1.5
dB
10B
-5
0
5
deg
10
-20
0
20
mV
40
47
54
µs
4.5
5.6
6.7
µs
2.0
2.5
3.0
µs
VIDEO IN
VIDEO OUT
31
GVIO
VIDEO IN
VIDEO OUT Gain
32
FVIO
VIDEO IN VIDEO OUT frequency
characteristics
SG9 : 5MHz, 0.5VP-P CW
SW9 : ON
12 0V, 2 0V (SG2 : OFF)
SUPER IMPOSE
33
PSI
RGB/VIDEO IN burst phase difference
SG9 : 3.58MHz, 286mVP-P CW
SG12 : 1VP-P
34
VOS
DC offset
SG9 : burst, 286mVP-P
SG12 : 1VP-P
35
HHK
HHK width
PAL MODE (SW13 : ON)
5 5V
36
BFPP
BFP point (burst point)
5
5V
37
BFPW
BFP width (burst width)
5
5V
MMV
2
15
2
15
15
MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
ELECTRICAL CHARACTERISTICS TEST METHOD
Mode table (common to each test)
Mode
Conditions
Functions
9
FREE RUN MODE
VCXO FREE RUN
0 ~ 0.3V
13
PAL MODE
Carrier phase for MOD R is inverted on line
2 ~ 2.2mA
12
Hi : 2 ~ 5V
SUPER IMPOSE MODE
10
Lo : 0 ~ 1V
15
TEST MODE MR
TEST MODE MB
TEST MODE DR
TEST MODE DB
12
4.7 ~ 5V
4.7 ~ 5V
4.7 ~ 5V
4.7 ~ 5V
7
2 ~ 5V
0 ~ 1V
2 ~ 5V
0 ~ 1V
OPEN
OPEN
0 ~ 0.3V
0 ~ 0.3V
5 Chroma difference output
MOD R-Y out
MOD B-Y out
DIFF R-Y out
DIFF B-Y out
15
5
TEST MODE P
4.7 ~ 5V
V4, V6, V9,
V16, V17, V18
VIDEO OUT
RGB ENCODE signal out
VIDEO IN signal out
Voltage at each pin when SYNC is input to pin
2 (C.SYNC IN). (In clamp operation)
PULSE output
PAL MODE : BFP, HHK mix
NTSC MODE : BFP
MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
TEST METHOD AND LIMITS CALCULATION METHOD
Test No.
1
2
Test method and limits calculation method
Measure the current to flow in pin
11
5V
5µs
SG2
0V
64µs
3
4
5
1V
SG18
SG17
SG16
52µs
2µs
0V
10µs
E
Output at pin
15
5V
5µs
SG2
0V
64µs
6
0.71V
SG16
SG17
SG18
Output at pin
0V
Output at pin
10µs
EY
15
SG18
SG17
SG16
7
8
9
52µs
2µs
f=500kHz / 5MHz
0V
0.5VP-P CW
V out
15
F = 20 log
V out (5MHz)
V out (500kHz)
(dB)
MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
TEST METHOD AND LIMITS CALCULATION METHOD (cont.)
Test No.
Test method and limits calculation method
5V
5µs
SG2
0V
10
11
64µs
Output at pin
15
VS
0.5VP-P
0V
SG14
.Frequency:500kHz
12
Measure the element of 500kHz at pin 10 (V12) and calculate GY as follows.
GY = 20 log
V12
(dB)
0.5VP-P
0.5VP-P
0V
SG14
.Frequency:5MHz
13
Measure the element of 5MHz at pin 10 (V13) and calculate fcY as follows.
fcY = 20 log
V13
V12
(dB)
5V
5µs
SG2
0V
64µs
1V
SG18
(SG16)
0V
Output at pin
52µs
2µs
14
(15)
10µ
15
DL
MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
TEST METHOD AND LIMITS CALCULATION METHOD (cont.)
Test No.
Test method and limits calculation method
f=500kHz
SG18
(SG16)
16
(17)
18
(19)
Output at pin
0V
0.5VP-P CW
V out
15
GH = 20 log
V out ( 19 5V)
(dB)
V out ( 19 2.5V)
GL = 20 log
V out ( 19 5V)
V out ( 19 2.5V)
5V
(dB)
5µs
SG2
0V
64µs
VnH
20
21
22
Output at pin
V(n+1)H
10B
VB1=VnH
VB2=VnH
VB3=VnH - V(n+1)H
5V
SG2
5µs
0V
64µs
23
Output at pin
10B
PnH
PPB = PnH burst phase - P(n+1)H burst phase
P(n+1)H
MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
TEST METHOD AND LIMITS CALCULATION METHOD (cont.)
Test No.
Test method and limits calculation method
5V
5µs
SG2
0V
64µs
24
25
26
1V
SG18
SG17
SG16
Output at pin
52µs
2µs
0V
0.71VP-P
10µs
10B
VB
VC
VC
R (G, B) / Burst level ratio =
VB
5V
5µs
SG2
0V
64µs
27
Output at pin
10B
VB
VC
VC
VC/B = 20 log
(dB)
VB
5V
5µs
SG2
0V
64µs
28
29
30
1V
SG18
SG17
SG16
Output at pin
52µs
2µs
0V
10µs
10B
PB
PC
R (G, B) / Burst phase difference = PC - PB (deg)
0.71VP-P
MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
TEST METHOD AND LIMITS CALCULATION METHOD (cont.)
Test No.
Test method and limits calculation method
500kHz / 5MHz
0V
SG9
Output at pin
0.5VP-P CW
V out
10B
31
32
GVIO = 20 log
FVIO = 20 log
5V
V out (500kHz)
0.5VP-P
V out (5MHz)
V out (500kHz)
(dB)
(dB)
5µs
SG2
0V
64µs
286mVP-P CW
0V
SG9
3.58MHz
2V
33
SG12
1V
Output at pin
2µs
32µs
30µs
Output at VIDEO IN side
10B
PRGB
PSI = PRGB - PVIN (deg)
Output at RGB side
PVIN
MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
TEST METHOD AND LIMITS CALCULATION METHOD (cont.)
Test No.
Test method and limits calculation method
5µs
5V
SG2
0V
2V
SG12
64µs
2µs
30µs
1V
32µs
34
SG9
0V
output at
pin 10
0V
286mVP-P
3.58MHZ
VRGB
VVIN
VOS=VRGB -VVIN (mV)
SG2
5µs
5V
2.5V
0V
64µs
35
output at
pin 15
2.8V
HHK
SG2
5µs
5V
2.5V
0V
64µs
36
37
output at
pin 15
BFPP
BFPW
2
MMV
1/2
1
BFP
C.Sync 1/2fh
SG2
2
HHK
CLAMP
B
VCA
B
LPF
B
B-Y
CLAMP
R
VCA
R
LPF
R
C.Sync
R-Y
VCA
CONT
19
10k
V18
0.01µ
LPF
CONT
20
30k
19
C.Sync
91k
3
270p
BURST
ADD B
NTSC : OFF
BURST
ADD R
0.1µ
4
90˚
SIFT
LIM
B
MOD
B
LIM
R
MOD
R
SW4
Y
MATRIX
CLAMP G
+
CLAMP R
SW17
17
+
5
5
15
BPFd
BPF
0.1µ
6
Y/C
MIX
V6
7
7
VCXO
+
4.7µ
1k
45p
PAL
1µ
1.5k
+
8
9
SG9
+
9
1VP-P
SW9
CLAMP V
V9
10k
11
11
6dB
AMP
3.58
BPF
10
2VP-P
HPF 1
AMP 1
BFP
HPF 2
0.01µ
AMP 2
SW V
SWV
CONT
Vreg
12
SG12
12
1k
SW13
13
+
APC SW
47µ
APC
NTSC
0.5VP-P
14
IDENT
Y/C
MIXd
(Y : 6dB)
SW6
Sync.
ADD
15
1/2fh
BFP
C.Sync
1/2fh at PAL
ADDd
ADD
CLAMP B
16
+
4.7µ
SG16
SW16
V4
X
10k
V16
4.7µ
18
SW18
10k
V17
4.7µ
SG17
0.01µ
SG18
4.7µ
10
5V
10B
47µ
+
SG14
MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
TEST CIRCUIT
Unit Resistance : Ω
Capacitance : F
MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
PRECAUTIONS FOR APPLICATION
(1) Input signal
2
Specifications
Name
Pin No.
C.Sync IN
5V
VTH=2.5V
0V
9
VIDEO IN
1VP-P
100IRE
40IRE
In case that
no signal is
input, this pin
should be set
to free run
mode.
12
40IRE
286mVP-P
V DL
Refer to (9)
Ys
RGB ENCODE OUTPUT
2V
VTH=1.5V
Ys DL
Refer to (9)
1V
VIDEO OUTPUT
16
17
18
VIDEO OUTPUT
B IN
G IN
R IN
0.71VP-P
MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
(2) Setting of free run frequency
(4) Setting of Y DL
In this IC, the VCXO circuit generates fsc. Therefore, set the
oscillator frequency of VCXO to fsc as follows before using this IC.
1) Connect pin 9 (VIDEO IN) to GND and set it to free run mode.
2) V4 is the voltage at pin 4 (OFFSET R) when sync is input to
pin 2 (C.Sync IN). Apply voltage V4 - 0.5V to pin 4 (OFFSET
R).
3) Set pin 2 (C.Sync IN) to H. (5V is applied.)
4) Set the output frequency at pin 5 (TRAP) by adjusting the
trimmer capacitor at pin 7 (VCXO IN).
(5) Color control characteristics
(3)Setting of chroma difference LPF
Gain in chroma section can be set as shown in Fig. 3 by applying
voltage to pin 19 (COLOR CONT.). (The burst amplitude is fixed.)
The group delay characteristics of color signal of RGB encode
output changes by connecting a resistor externally to pin 20 (fc
CONT.). Therefore, set Y DL based on the delay volume (group
delay volume derived from group delay characteristics + 40ns).
In case that a trap circuit is connected to pin 5 , take the delay
from +5 to +10ns into consideration.
The frequency characteristics of the chroma difference LPF which
is built in this IC can be set as shown in Fig. 1 by connecting a
resistor externally to pin 20 (fc CONT.).
The group delay characteristics also change as shown in Fig. 2.
3
60k
-6
50k
40k
30k
20k
10k
5k
-12
(dB)
(Frequency of output at pin 5
when 100kHz is input is set to 0dB.)
0
0
-1
-2
-3
0
1
-18
2
3
4
5
Voltage at pin 19
Fig. 3 Color control characteristics
-24
(As for the test conditions, refer to test No.16, 17, 18 and 19.)
-30
100k
1M
10M
Fig. 1 Frequency characteristics of
color difference LPF
(As for the test conditions, refer to test No.14 and 15.)
(6) Relation between BFP and HHK
The pulse width of GFP and HHK can be set as shown in Fig. 4 by
connecting DR externally to pin 3 (HHK).
500
400
External R at pin 3 (kΩ)
RGB INÆpin 5 delay (nsec)
RGB INÆpin 5 gain (dB)
6
1
Output at pin 5
2
300
200
100
0
5 10
20
30
40
50
130
120
110
100
90
80
70
BFPP BFPW
HHK
5.6µs
47µs
3
R
270p
2.5µs
5V
0V
pin 2 Sync
60
0
Pin 20 R (kΩ)
10
20
30
40
50
60
Time interval from sync rise at pin 2 (47µsec)
Fig. 2 Group delay characteristics of
color difference LPF
Fig. 4 RC product at pin
(As for the test conditions, refer to test No.14 and 15.)
(As for the test conditions, refer to test No.35, 36 and 37.)
3
vs. internal pulse
MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
(7) Driving of input pins
Drive pins 9 , 16 , 17 and 18 at low impedance because they
are clamped by IC input.
(8) I/O relation between sync signal and burst signal
during the period V
2 C.Sync IN
10
VIDEO OUT
(Ts:Hi)
Sync signal
I/O relation between sync signal and burst signal
(9) Setting of V DL and Ys DL in superimpose mode
1) V DL is used to adjust the timing of RGB encode signal and
VIDEO IN signal.
2) Ys DL is used to adjust the timing of RGB encode signal and Ys
IN signal.
3) In case that signals are input to C.SYNC IN, RGB IN, VIDEO IN
or Ys IN at the same timing, set V DL and Ys DL based on the
delay volume as below.
V DL = Y DL (Refer to (4)) + 10 (nsec)
Ys DL = Y DL - 10 (nsec)
Burst signal
MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
TYPICAL CHARACTERISTICS
THERMAL DERATING (MAXIMUM RATING)
POWER DISSIPATION Pd (mW)
(900)
Values are measured when any
external circuits are connected
to this IC.
Values in parentheses are those
measured when the IC is
mounted on a standard board.
620
600
(450)
310
300
0
0
25
50
75
100
125
OPERATING TEMPERATURE Ta (˚C)
Standard board
Material : glass epoxy (Cu leaf pattern is put over one side of the board.)
Size : 70mm, thickness=1.6mm
Thickness of Cu leaf : 18µm
MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
APPLICATION EXAMPLE (1)
Encoding RGB video signal to NTSC/PAL signal RGB video signal input
RGB VIDEO SIGNAL INPUT
R
0.71VP-P
G
20
18
17
RIN
16
GIN
R-Y
BURST
ADD
(
12
Vreg
SUPERIMPOSE
SW
BPF
B-Y
MOD
6dB
AMP
APC
CLAMP
MMV
VCXO
6
8
Unit Resistance : Ω
Capacitance : F
(Note)
Drive at low impedance
because the RGB video signal
is clamped by IC input. Set the
amplitude of the RGB signal
(emitter follower, etc.) to
0.71VP-P (at color saturation).
VIDEO
OUT
9
10
NTSC/PAL VIDEO OUTPUT
APC FILTER
VCXO
CLAMP B
3fsc TRAP
CLAMP R
GND
MMV
12p
0.1µ
7
1µ 1.5k
5
VIDEO
IN
Xtal
0.1µ
4
15µ
3
270p
2
91k
1
B-Y CLAMP
0.01µ
R-Y CLAMP
GND
47µ
NTSC/
PAL
Y/C
MIX
MIX
11
VCC
2.1V
Y
+
0.01µ
13
Sync.
ADD
R-Y
MOD
B-Y
BURST
ADD
Vreg
14
BIN
CLAMP
VCC=5V
Y IN
15
MATRIX
B-Y
)
47µ
Y DL
1k
19
FILTER CONT
COLOR CONT
R-Y
1k
Y OUT
4.7µ
4.7µ
4.7µ
+
0.01µ
30k
2.5V
fc CONT.
COMPOSITE
Sync.
1k(PAL ONLY)
Recommended Y DL (360ns):
Toko Co., Ltd. TH317LSOS-3287
B
Example of Xtal:Nippon denpa industry Co., Ltd. AT-51
(NTSC = 3.579545MHz)
(PAL = 4.433619MHz)
MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
APPLICATION EXAMPLE (2)
Superimposing RGB Character Signal on NTSC/PAL Signal
(*The case that RGB signal of personal computers, etc. is
superimposed on NTSC/PAL signal as a child picture is mentioned
in parentheses.)
In case that the signal which is about 350ns behind the character
(*child picture) RGB signal is directly generated as Ys signal, Ys
DL is not necessary. When the timing of RGB coincides with that of
Ys, set the delay time of Ys DL to 350ns (typ.).
RGB CHARACTER SIGNAL INPUT
(*RGB child picture signal input after processing time axis)
Ys
Ys DL
R
VTH=1.5V
(Hi=R,G,B)
(350ns)
0.71VP-P
G
COMPOSITE
Sync.
20
18
17
RIN
FILTER CONT
COLOR CONT
16
GIN
)
Toko Co., Ltd. TH317LSOS-3287
47µ
11
NTSC/
PAL
SUPERIMPOSE
SW
Y/C
MIX
(Note)
Drive at low impedance
because character RGB signal
and main picture video signal
are clamped by IC input. In
case that character RGB
signal is generated at the
same timing with that of main
picture input signal, delay the
main picture input signal about
370ns. The timing to insert
characters is delayed. In
inputting Composite Sync,
input the sync signal of the
main picture.
BPF
B-Y
MOD
6dB
AMP
APC
CLAMP
MMV
VCXO
6
8
Example of Xtal:Nippon denpa industry Co., Ltd. AT-51
(NTSC = 3.579545MHz)
(PAL = 4.433619MHz)
9
10
1µ
NTSC/PAL VIDEO OUTPUT
4.7µ
APC FILTER
VCXO
CLAMP B
3FSC TRAP
CLAMP R
GND
MMV
12p
0.1µ
7
VIDEO
OUT
1.5k
5
VIDEO
IN
Xtal
0.1µ
4
15µ
3
270p
2
91k
1
B-Y CLAMP
0.01µ
R-Y CLAMP
GND
VCC=5V
VCC
Vreg
Y
+
0.01µ
Vreg
12
2.1V
R-Y
MOD
B-Y
BURST
ADD
13
Sync.
ADD
MIX
B-Y
14
BIN
CLAMP
R-Y
BURST
ADD
Y IN
15
MATRIX
R-Y
(
Y DL
1k
19
+
Recommended Y DL (360ns):
1k
Y OUT
4.7µ
4.7µ
0.01µ
30k
4.7µ
47µ
fc CONT.
2.5V
1k(PAL ONLY)
B
Main picture NTSC/PAL
video signal input
Unit Resistance : Ω
Capacitance : F
MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
DESCRIPTION OF PIN
Pin No.
1
Name
GND
Pin voltage
Peripheral circuit of pins
AC : Sync input
Remarks
VTH=2.5V±0.3V
CLAMP R CLAMP B
100µ
100µ
C.SYNC
5
5k
VTH
5k
0
25k
1.5k
1.5k
C.SYNC IN
30k
2
25k
200µ
200µ
200µ
HHK pulse width can
be adjusted by connecting RC externally.
AC
3V
HHK
180µ
0.5V
1k
3
50µ
1k
Recommended value
HHK:3/4H
R=91K
C=270p
HHK
3V
14k
C
1.53k
2k
C
1.53k
R
DC : 3.1V
Recommended value of
external circuit
C=0.1µ
AC : Chroma
Recommended value of
external circuit
22k
4k
1k
OFFSET R
2.1V
4
36k
from
VCAR
1.5k
1.5k
to
VCAR
100µ
100µ
Sync
200µ
2.4V
L
L
C
NTSC : 15µ 12P
PAL
: 10µ 12P
C
5k
6k
5
500
TRAP
2.73k
Burst : 300mVP-P
3k
17p
50µ
1mA
30k
1p
400µ
15 Test mode output
when voltage at pin 15
is 5V
12 Hi : R-Y output
12 Lo : B-Y output
5 5V : Test mode setting
15 Pulse output
MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
DESCRIPTION OF PIN (cont.)
Pin voltage
Peripheral circuit of pins
2k
14k
C
1.53k
Name
1.53k
Pin No.
Remarks
DC : 3.1V
Recommended value of
external circuit
C=0.1µ
DC : 3.2V
Free run frequency is
set by the trimmer
capacitor
22k
4k
1k
OFFSET B
2.1V
6
36k
from
VCAB
1.5k
1.5k
to
VCAB
100µ
100µ
Sync
200µ
60P
2k
7
VCXO IN
300
2k
7 0V : Carrier OFF
2k
300
2k
30k
1P
300µ
200µ
C1
DC : 3.3V
In free run mode
DC : 2.7V
R
+
ß characteristics
Frequency
10k
C2
18k
4k
Hi
4k
8
APC FILTER
10k
Lo
Recommended value of
external circuit
R=1.5k
C1=0.001µ
C2=1µ
22k
20k
5k
100µ 100µ
35µ
35µ
AC : VIDEO 1VP-P
Pedestal section 2.9V
40k
1.5k
1.5k
1.5k
1.5k
1.5k
FR HI
1.5k
300µ
Clamp input
(burst timing)
Recommended value of
external circuit
C=4.7µ
4k
VIDEO IN
BFP
1.5k
FR Hi
100µ 150µ
9 0V : Free run mode
setting
30k
C
VIDEO
1.5k
9
APC voltage
250µ
1V
MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
DESCRIPTION OF PIN (cont.)
Pin No.
Name
Pin voltage
Peripheral circuit of pins
AC : VIDEO 2VP-P
Pedestal section 1.8V
600µ
10
Remarks
VIDEO OUT
900µ
11
VCC
12
5k
ICC : 50mA
Switching signal input
for superimposing
VTH=1.5±0.3V
Hi : RGB IN output
Lo : VIDEO IN output
5
3k
3k
30k
15k
YS
DC : 5V
VTH
YS
Hi : picture insertion
(RGB IN output)
5P
10k
40k
30k
0
100µ
DC : 2.1V
500
Setting of output at pin 5
when voltage at pin 15 is
5 V
12
5 Output at pin
Hi
R-Y
Lo
B-Y
Recommended value of
external circuit
C=47µ
8k
13
VRE G
9k
25k
14k
25k
1k
13
PAL mode at 2mA
12k
etc.
R1
+
AC : Y 0.5VP-P
Pedestal section 2.1V
C
1.53k
14
OUT
1.53k
Y
DL
Y IN
1k
IN
2P
R2
10k
10k
200µ
200µ
AC : Y 1VP-P
Pedestal section 2.1V
100
5k
15
Y OUT
30k
1.5m
50µ
5 Test mode output when
voltage at pin 5 is 5V
Pulse output
12
5 Output at pin
Hi
R-Y
Lo
B-Y
MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
DESCRIPTION OF PIN (cont.)
Pin No.
Name
Peripheral circuit of pins
Pin voltage
16
1.53k
1.53k
+
B
Remarks
AC : B0.71VP-P
Sync section : 2.9V
Clamp input (burst timing)
C=4.7µ
AC : B0.71VP-P
Sync section : 2.9V
Clamp input (burst timing)
C=4.7µ
AC : B0.71VP-P
Sync section : 2.9V
Clamp input (burst timing)
C=4.7µ
DC : 2.5V
Color control of RGB
encode output
5V : Chroma section+2dB
2.5V : Standard
0V : Chroma section-3dB
C
1k
B IN
2.1V
200µ
BFP
200µ
200µ
17
1.53k
1.53k
+
G
C
1k
G IN
2.1V
200µ
BFP
200µ
200µ
18
1.53k
1.53k
+
R IN
R
C
1k
2.1V
200µ
BFP
200µ
200µ
10k
0.01 µ
40k
20k
COLOR
CONT.
10k
10k
2.5V
19
50 µ
50 µ
50 µ
MITSUBISHI ICs (AV COMMON)
M52390FP
NTSC/PAL ENCODER
DESCRIPTION OF PIN (cont.)
Pin No.
Name
Peripheral circuit of pins
Pin voltage
DC : 3.3V
20k
20
20k
10k
16k
fc. CONT.
100
R
10k
34k
Remarks
fc of LPF can be adjusted
by connecting a resistor
externally.
R=30k