BA7230 View Datasheet(PDF) - ROHM Semiconductor
Part Name
Description
Manufacturer
BA7230 Datasheet PDF : 8 Pages
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Multimedia ICs
•Input waveform and timing chart
VIDEO IN
CB
SYNC
PCP
BFP
RGB IN
HDP
YS
COMPOSITE OUT
from RGB
CB
BA7230LS
1VP-P
VH
VL
∗ TTL LEVEL ( 1)
VH
VL
∗ TTL LEVEL ( 1)
VH
VL
∗ TTL LEVEL ( 1)
0.7VP-P
VH
∗ TTL LEVEL ( 1)
VL
VH
VL
∗ TTL LEVEL ( 2)
2VP-P
SUPER
IMPOSE
CB
2VP-P
CB: COLOR BURST
∗1 VL: 0 ~ 0.8V VH: 3.0V ~ VCC
∗2 VL: 0 ~ 0.4V VH: 2.0V ~ VCC
Fig. 9
•Electrical characteristic curves
80
70
60
50
40
30
20
10
0
0 1 2 34 5 6 78
POWER SUPPLY VOLTAGE: VCC (V)
Fig. 10 Quiescent current vs.
power supply voltage
3580.5
3580.0
f0 = 3579.545kHz
3579.5
3579.0
3578.5
3
4
5
6
7
POWER SUPPLY VOLTAGE: VCC (V)
Fig. 11 VCXO free-run frequency vs.
power supply voltage
600
400
200
f0 = 0
– 200
– 400
– 600
f0 = 3579.545kHz
VIN = 0.1VP-P
+ lock
+ cap
– cap
– lock
3
4
5
6
7
POWER SUPPLY VOLTAGE: VCC (V)
Fig. 12 Capture range and
lock range (!) vs.
power supply voltage
7
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