BA7207AS datasheet(16/17 Pages) ROHM

16 / 17 page

Video ICs

BA7207AS / BA7207AK

FADJ1 RESISTANCE VALUE: RADJ1 (k

Ω)

7.5

8.0

8.5

9.0

9.5

1.3

1.2

1.1

1.0

0.9

Fig. 9 REC / PB EQ fO

frequency adjustment

range

•Electrical characteristic curves

1PIN REC IN LEVEL: VIREC (mVP-P)

Conditions

VCC = 5.0V

fo = 4.286MHz

V = 170mVP-P

4.15

4.20

4.25

4.30

4.35

4.40

100

200

300

400

500

Fig. 11 REC / BELL fO

frequency variation

FADJ2 RESISTANCE VALUE: RADJ2 (k

Ω)

7.5

8.0

8.5

9.0

9.5

5.5

5.0

4.5

4.0

3.5

Fig. 10 REC / PB BELL fO

frequency adjustment

range

18PIN PB IN LEVEL: VIPB (mVP-P)

Conditions

VCC = 5.0V

fo = 1.0715MHz

V = 25mVP-P

1.04

1.05

1.06

1.07

1.08

1.09

100

Fig. 12 PB EQ fO frequency

variation characteristics

FREQUENCY: f (MHz)

2MHz component

1MHz

component

3MHz

component

6MHz component

8MHz component

7MHz

component

5MHz

component

Fundamental frequency

component

PB IN

f = 1.0715MHz

V = 25mVP-P

– 110

– 100

– 90

– 80

– 70

– 60

– 50

– 40

– 30

– 20

– 10

Fig. 14 PB OUT spurious

characteristics

FREQUENCY: f (MHz)

Fundamental

frequency

component

2MHz

component

3MHz

component

4MHz

component

RECIN

f = 4.286MHz

V = 170mVP-P

– 10

– 20

– 30

– 40

– 50

– 60

– 70

– 80

– 90

– 100

– 110

1.0

2.0

3.0

4.0

5.0

Fig. 13 REC OUT spurious

characteristics

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