KA2198BD [SAMSUNG]
RGB ENCODER FOR PAL/NTSC; RGB编码器， PAL / NTSC
| 型号： | KA2198BD |
| 厂家： | 
SAMSUNG |
| 描述： | RGB ENCODER FOR PAL/NTSC |
| 文件： | 总6页 (文件大小：104K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
KA2198BD
RGB ENCODER FOR PAL/NTSC
RGB ENCODER FOR PAL/NTSC
24-SOP-300
The KA2198BD is a monolithic circuit designed for RGB
encoder of video system. This device provides encoding
system of PAL and NTSC video signal. The KA2198BD
contains matrix of R-Y/B-Y, modulator, pulse generator,
regulator, built in BPF of chroma and delay line of lumin-
ance, Y/C output using S-VHS system. It is suitable for
video equipment.
FUNCTIONS
· Regulator
· Mixer of R-Y, B-Y
· Modulator
· Pulse generator (ECL circuit)
· Audio buffer
· Clamp circuit
ORDERING INFORMATION
Device Package Operating Temperature
KA2198BD 24-SOP-300
-20°C~+65°C
· Y-TRAP filter
· BPF & D.L circuit
· Y/C output driver
FEATURES
· Lower operating voltage : VCC = 5V
· Stabilized bias condition in regulator
· Abailable PAL/NTSC system
· Included 75 ohm driver ( RGB output, composite video output, Y/C output)
· External fsc ( color sub-carrier)
· Include BPF & delay line
· Audio buffer circuit
· R-Y, B-Y modulator
· Available S-VHS
· High frequency response of luminance
BLOCK DIAGRAM
24
22
22
21
20
13
19
18
17
16
15
C OUT
14
Y OUT
Vref
Y/C
MIXER
VIDEO
OUTPUT
R
,
G
,
B
O
U
T
P
U
T
D.L
BPF
SYNC. ADDER
MATRIX
R-Y MODULATOR
B-Y MODULATOR
C
A
M
P
PHASE
CONTROL
A
B
U
D
I
O
R,G,B CLAMP
SYNC. IN
U
F
F
E
R
1
2
3
4
5
8
12
6
7
9
10
11
KA2198BD
RGB ENCODER FOR PAL/NTSC
PIN CONFIGURATION
Pin No.
DESCRIPTION
Pin No.
DESCRIPTION
1
2
GND1
R INPUT
13
14
15
16
17
18
19
20
21
22
23
24
N.C
2V REGULATOR
C.OUT
3
G INPUT
4
B INPUT
Y OUT
5
N.C
Y-TRAP FILTER
N.C
6
fsc INPUT
7
NTSC/PAL SW
AUDIO IN
VCC2
8
COMPOSITE VIDEO OUTPUT
B OUTPUT
G OUTPUT
R OUTPUT
GND2
9
AUDIO OUT
COMPOSITE SYNC. IN
N.C
10
11
12
(note)
VCC1
VCC1, GND1 : except output stage
VCC2, GND2 : output stage supply voltage
ABSOLUTE MAXIMUM RATINGS (TA=25°C)
Characteristics
Symbol
Value
Unit
MAX Supply Voltage
Power Dissipation
VCCMAX
PD
10
V
mW
°C
1250
Operating Temperature
Storage Temperature
TOPR
TSTG
-20~+70
-55~+150
°C
ELECTRICAL CHARACTERISTICS (TA=25°C,VCC=5V)
Characteristics
Supply Current 1
Symbol
Test Conditions
Min
Typ
Max
Unit
ICC1
ICC2
VOR
VOG
VOB
No signal input
25
5.0
39
11
0.71
0.71
0.71
-
49
16
0.78
0.78
0.78
-
mA
mA
Supply Current 2
R Output Voltage
R,G,B input signals
0.64
VP-P
VP-P
VP-P
MHz
MHz
MHz
MHz
-
G Output Voltage
Vin=1.0 VP-P, f=200KHz 0.64
0.64
B Output Voltage
R Frequency Response
G Frequency Response
B Frequency Response
Y Frequency Response
RFC
R,G,B input signals
Vin=1.0 VP-P, f=200KHz
(-3dB point)
5.0
5.0
GFC
BFC
-
-
5.0
-
-
YFCN
VYR1
Y OUT (-3dB point)
R,G,B input signals
6.0
-
-
R 100% Y Level
Ratio(CVBS)
0.19
0.21
0.25
G 100% Y Level
Ratio(CVBS)
VYG1
VYB1
Vin=1.0 VP-P
0.38
0.42
0.08
0.48
0.09
-
-
B 100% Y Level
Ratio(CVBS)
(100% R,G,B / 100% Y) 0.07
KA2198BD
RGB ENCODER FOR PAL/NTSC
Characteristics
Symbol
Test Conditions
Min
Typ Max Unit
100% Y Level ( CVBS )
Sync. Level 1 ( CVBS )
R 100% Y Level Ratio (Y OUT)
G 100% Y Level Ratio (Y OUT)
B 100% Y Level Ratio (Y OUT)
100% Y Level (Y OUT)
Sync. Level 1 (Y OUT)
Audio Buffer Gain
VYW1
VSNC1
VYR2
VYG2
VYB2
VYW2
VSNC2
Ga
0.64
0.26
0.19
0.38
0.07
0.64
0.26
-1.0
30
0.71
0.29
0.21
0.42
0.08
0.71
0.29
1.0
0.82
0.33
0.25
0.48
0.09
0.82
0.33
1.1
VP-P
VP-P
-
R,G,B input signal
Vin=1.0VP-P
-
(100% R,G,B / 100% Y)
-
VP-P
VP-P
dB
KHz
%
Audio Input
Audio Frequency Response
Audio Distortion
Fa
100KHz, 1VP-P
-
-
THD
-
-
1.0
NTSC mode
R Chroma Ratio 1 (CVBS)
G Chroma Ratio 1 (CVBS)
B Chroma Ratio 1 (CVBS)
Burst level 1 (CVBS)
R Chroma Ratio 2 (C OUT)
G Chroma Ratio 2 (C OUT)
B Chroma Ratio 2 (C OUT)
Burst level 2 (C OUT)
R Phase (CVBS)
R/B1
G/B1
B/B1
Vob1
R/B2
G/B2
B/B2
Vob2
SRN
SGN
SBN
2.70
2.55
1.90
0.20
2.70
2.55
1.90
0.20
94
3.15
2.95
2.24
0.29
3.15
2.95
2.24
0.29
104
241
347
2.75
0.5
3.50
3.25
2.47
0.34
3.50
3.25
2.47
0.34
114
-
-
fsc input 3.58MHz, 400mVP-P
( check CVBS out )
-
VP-P
-
fsc input 3.58MHz, 400mVP-P
( check C out )
-
-
VP-P
deg
deg
deg
usec
usec
VP-P
G Phase (CVBS)
fsc input 3.58MHz, 400mVP-P
( check CVBS out )
231
337
2.5
251
B Phase (CVBS)
357
Burst Width
TWN
3.6
Burst Position
TPN
0.45
-
0.75
0.03
Carrier Leakage
CL
CVBS out, Y out
-
PAL mode
R Chroma Ratio 3 (CVBS)
G Chroma Ratio 3 (CVBS)
B Chroma Ratio 3 (CVBS)
Burst level 3 (CVBS)
R Chroma Ratio 4 (C OUT)
G Chroma Ratio 4 (C OUT)
B Chroma Ratio 4 (C OUT)
Burst level 4 (CVBS)
R Phase (CVBS)
R/B3
G/B3
B/B3
Vob3
R/B4
G/B4
B/B4
Vob4
SRP
SGP
SBP
2.70
2.55
1.90
0.20
2.80
2.65
2.01
0.20
94
3.15
2.95
2.24
0.29
3.15
2.95
2.24
0.29
104
241
347
2.25
0.45
135
225
-
3.50
3.25
2.47
0.34
3.50
3.25
2.47
0.34
114
251
357
2.5
-
-
fsc input 3.58MHz, 400mVP-P
( check CVBS out )
-
VP-P
-
fsc input 3.58MHz, 400mVP-P
( check C out )
-
-
VP-P
deg
deg
deg
usec
usec
deg
deg
MHz
G Phase (CVBS)
fsc input 3.58MHz, 400mVP-P
( check CVBS out )
231
337
2.0
B Phase (CVBS)
Burst Width
TWP
Burst Position
TPP
0.35
125
215
6.0
0.55
145
235
-
PAL Burst Phase 1
P1
CVBS out, Y out
PAL Burst Phase 2
P2
Y Frequency Response
YFCP
Y output (-3dB point)
KA2198BD
RGB ENCODER FOR PAL/NTSC
TEST WAVEFORM
< OUTPUT SIGNAL >
< INPUT SIGNAL >
4 V
CVBS OUT
(PIN 20)
SYNC. INPUT
( PIN 10)
0 V
R IN
(PIN 2)
1 Vp-p
C OUT
(PIN15)
G IN
(PIN 3)
1 Vp-p
1 Vp-p
B IN
(PIN 4)
Y OUT
(PIN16)
1kHz
1kHz
AUDIO IN
(PIN 8)
AUDIO OUT
(PIN 9)
1 Vp-p
1 Vp-p
3.58 MHz(NTSC), 4.43MHz(PAL)
fsc IN
(PIN 6)
0.3 ~ 5.7 Vp-p
KA2198BD
RGB ENCODER FOR PAL/NTSC
APPLICATION CIRCUIT
CVBS
OUT
G
B
R
OUT
OUT OUT
Y OUT
C OUT
¥
ì
F
0.01
Vcc (5V)
100¥ ìF
+
75¥
Ø
75¥
75¥
Ø
75¥
Ø
Ø
75¥
Ø
75¥ Ø
*L
¥
ì
470¥ Fì
470
F
470¥ Fì
470¥ Fì
470¥ Fì
470¥ ìF
¥ ì
10
F
+
+
+
+
*C
+
+
+
n.c
18
n.c
13
23
22
21
20
19
17
16
15
14
24
KA2198BD
2
3
4
5
6
8
9
10
11
n.c
12
1
7
n.c
Vcc (NTSC)
GND (PAL)
AUDIO
OUT
0.1¥ Fì
0.1¥ Fì
0.1¥ Fì
R
IN
G
IN
B
IN
AUDIO
IN
C.SYNC
IN
fsc in
0.3 ~5.7Vpp
3.58MHz(NTSC), 4.43 MHz(PAL)
SYSTEM
NTST
PAL
Fo(MHz)
3.57
4.43
HL(uH)
100
HC(pF)
20
82
15
KA2198BD
RGB ENCODER FOR PAL/NTSC
CVBS
OUT
G
B
R
OUT
OUT OUT
Y OUT
C OUT
0.01¥ ìF
Vcc (5V)
100¥ ìF
+
75¥
Ø
¥
75
Ø
¥
75
Ø
¥ Ø
75
75¥
Ø 75¥ Ø
¥
Fì
*100
470¥ ìF
470¥ ìF
470¥ ìF 470¥ ìF
470¥ ìF
470¥ ìF
10¥ Fì
+
+
+
+
+
+
+
*20PF
n.c
n.c
13
23
22
21
20
19
18
17
16
15
14
24
KA2198BD
2
3
4
5
6
7
8
9
10
11
n.c
12
1
n.c
Vcc (NTSC)
GND (PAL)
+
+
AUDIO
OUT
10¥ ìF 10¥ ìF
0.1¥ ìF
0.1¥ ìF
0.1¥ ìF
* Only for Game Machine
R
IN
G
IN
B
IN
AUDIO
IN
C.SYNC
IN
fsc in
200 ~4000mVp-p
3.58MHz(NTSC), 4.43 MHz(PAL)
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