13

Multimedia ICs

BA7657F / BA7657S

SOP24

SDIP24

0.15

0.4 ± 0.1

15.0 ± 0.2

0.3Min.

24

1

13

12

1.27

0.3 ± 0.1

7.62

22.9 ± 0.3

0.5 ± 0.1

1.778

13

12

24

1

0° ~ 15°

BA7657F

BA7657S

Resistors attached to analog switch outputs

Because analog switch frequency characteristics de-

pend on output load capacity, set external resistance

(Ro) so that the frequency characteristics remain flat. A

too-large resistance will suppress the characteristic

peak.

1M

10M

100M

300M

0

2

4

FREQUENCY: f (Hz)

– 2

– 4

– 6

– 8

– 10

– 12

– 14

Fig. 4 Frequency characteristics

〈sink level Vs〉

280mV

50mV

Duty25%

10.0

9.0

8.0

7.0

6.0

5.0

4.0

3.0

2.0

1.0

0.0

20

40

60

80 100 120 140 160 180 200

FREQUENCY: fH (kHz)

130mV

Fig. 6 Minimum SYNC

separation characteristics

1M

10M

100M

300M

10

0

FREQUENCY: f (Hz)

– 10

– 20

– 30

– 40

– 50

– 60

– 70

– 80

– 90

Fig. 5 Interchannel crosstalk characteristics