BA7230 Rohm, BA7230 Datasheet - Page 3

• Manufacturer Part Number: BA7230
• Description: NTSC color TV signal encoder
• Manufacturer: Rohm

•
Multimedia ICs
Electrical characteristics (unless otherwise noted, Ta = 25°C, V
(R-Y) / (B-Y) modulation gain differential
Quiescent current
Video output level
Half down level change
DC offset
Crosstalk
ER-EY output level
EB-EY output level
YOUT output level
Ys switching delay time
SYNC output level
Burst output level
Composite output level
B-Y modulation gain
(R-Y) / (B-Y) orthogonal phase shift
(R - Y) ·Burst orthogonal phase shift
Carrier leak
APC capture range
Carrier phase range
Video frequency characteristic
Video output DG
Video output DP
Input impedance (SY, BF, PC, HD)
Threshold level (SY, BF, PC, HD)
Threshold level (Ys)
R-Y modulation gain
Input impedance (Ys)
Parameter
Symbol
G
G
G
G
V
V
V
V
V
V
V
f
DG
L
DP
Z
V
CT
V
T
V
CAP
Z
I
f
R-Y
B-Y
R-Y
R-B
SC
Q
OV
OF
OS
OB
OY
B-Y
SC
TY
VH
V
TY
R
B
Y
D
T
T
– 3
– 6
– 6
Min.
0.25
100
1.7
0.3
0.2
1.0
0.4
1.7
4.5
0.9
0.5
30
—
—
—
—
—
—
—
—
9
9
8
3
– 46
– 5
Typ.
0.42
0.31
0.65
0.46
3.5
2.5
2.2
1.4
2.2
7.5
2.0
1.1
38
50
60
30
45
11
11
—
—
—
—
15
6
– 40
Max.
– 7
0.55
0.42
160
2.6
1.8
0.9
0.8
2.6
2.8
1.8
54
13
13
70
—
—
—
—
—
—
—
—
2
6
6
mV
mV
MHz
Unit
V
V
V
V
V
V
V
CC
deg
deg
deg
deg
mA
k
k
dB
dB
dB
dB
dB
Hz
ns
%
V
V
P-P
P-P
P-P
P-P
P-P
P-P
P-P
P-P
P-P
= 5.0V)
Difference between above gains
VIDEO IN = 1V
VIDEO IN = 1V
VIDEO IN = 1V
V
V
V
R
Y
R - Y
B - Y
V
Burst = 0.1V
Superimposition
– 3dB when f = 100kHz
VIDEO IN = 1V
VIDEO IN = 1V
R
B
R
E
IN
OUT
= 0.7V
= 0.7V
= V
= 1.8k
= 0.7V
IN
IN
= 2V
G
= 0.2V
= 0.3V
= V
P-P
P-P
P-P
P-P
B
P-P
= 0.7V
P-P
P-P
, 2.8 S
P-P
P-P
P-P
P-P
P-P
P-P
Conditions
—
—
—
—
—
—
—
—
—
—
BA7230LS
3