Video ICs
•Electrical characteristic curves
1.3
1.2
1.1
1.0
0.9 7.5
8.0
8.5
9.0
9.5
FADJ1 RESISTANCE VALUE: RADJ1 (kΩ)
Fig. 9 REC / PB EQ fO
frequency adjustment
range
BA7207AS / BA7207AK
5.5
5.0
4.5
4.0
3.5 7.5
8.0
8.5
9.0
9.5
FADJ2 RESISTANCE VALUE: RADJ2 (kΩ)
Fig. 10 REC / PB BELL fO
frequency adjustment
range
4.40
4.35
4.30
Conditions
VCC = 5.0V
fo = 4.286MHz
V = 170mVP-P
4.25
fo
4.20
4.15
0
100 200 300 400 500
1PIN REC IN LEVEL: VIREC (mVP-P)
Fig. 11 REC / BELL fO
frequency variation
1.09
1.08
1.07
1.06
fo
Conditions
VCC = 5.0V
fo = 1.0715MHz
V = 25mVP-P
1.05
1.04 0
20
40
60
80
100
18PIN PB IN LEVEL: VIPB (mVP-P)
Fig. 12 PB EQ fO frequency
variation characteristics
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
– 100
– 110
0
RECIN
f = 4.286MHz
V = 170mVP-P
Fundamental
frequency 2MHz
component component
3MHz
component
4MHz
component
1.0
2.0
3.0
4.0
5.0
FREQUENCY: f (MHz)
Fig. 13 REC OUT spurious
characteristics
– 10
– 20
Fundamental frequency
component
– 30
– 40
– 50
PB IN
f = 1.0715MHz
V = 25mVP-P
8MHz component
6MHz component
– 60 1MHz
component
– 70
3MHz
component
– 80
– 90
5MHz
7MHz
component component
– 100
2MHz component
– 110
0 1 2 3 4 5 6 7 8 9 10
FREQUENCY: f (MHz)
Fig. 14 PB OUT spurious
characteristics
16