BA7207 ROHM [Rohm], BA7207 Datasheet - Page 16

• Manufacturer Part Number: BA7207
• Description: SECAM chroma signal processor for VHS VCRs
• Manufacturer: ROHM [Rohm]

•
16
Video ICs
Electrical characteristic curves
1.09
1.08
1.07
1.06
1.05
1.04
1.3
1.2
1.1
1.0
0.9
0
Fig. 12 PB EQ f
FADJ1 RESISTANCE VALUE: R
7.5
Fig. 9 REC / PB EQ f
18PIN PB IN LEVEL: V
20
fo
8.0
variation characteristics
frequency adjustment
range
40
8.5
O
60
frequency
Conditions
V
fo = 1.0715MHz
V = 25mV
IPB
9.0
CC
(mV
O
= 5.0V
80
ADJ1
P-P
P-P
)
9.5
(k )
100
– 100
– 110
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
5.5
5.0
4.5
4.0
3.5
0
FADJ2 RESISTANCE VALUE: R
7.5
Fig. 10 REC / PB BELL f
component
Fig. 13 REC OUT spurious
frequency
Fundamental
1.0
FREQUENCY: f (MHz)
8.0
2MHz
component
frequency adjustment
range
characteristics
2.0
8.5
3MHz
component
3.0
9.0
RECIN
f = 4.286MHz
V = 170mV
4.0
ADJ2
4MHz
component
O
9.5
(k )
P-P
5.0
– 100
– 110
BA7207AS / BA7207AK
4.40
4.35
4.30
4.25
4.20
4.15
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
0
0
1MHz
component
Fundamental frequency
component
1
1PIN REC IN LEVEL: V
Fig. 11 REC / BELL f
Fig. 14 PB OUT spurious
2MHz component
100
2
fo
3MHz
component
FREQUENCY: f (MHz)
3
frequency variation
200
4
characteristics
5
6MHz component
5MHz
component
300
6
IREC
Conditions
V
fo = 4.286MHz
V = 170mV
PB IN
f = 1.0715MHz
V = 25mV
7
CC
8MHz component
(mV
= 5.0V
400
O
8
7MHz
component
P-P
)
P-P
9
P-P
500
10