Rainbow-electronics BA4908 Manual do Utilizador descarregar pdf (Página 2)

IST

5.30

0.55

5.60

0.80

5.90

VO1 IO1=80mA

IO2=120mA

VO2≥8.25V

IO2=120mA

IO3=400mA

VO3≥11.7V

STAN BY pin = 0V

8.25 8.70 9.15VO2

150

0.4

300

0.7

∆VO23

IO2

VO5≥5.3V

IO5=120mA

150

0.4

300

0.7

∆VO53

IO5

VO1≥5.3V

IO1=80mA

100

0.3

200

0.7

∆VO13

IO1

1.0 1.5

∆VO31

500 900

mAIO3

IO4=400mA

VO4≥11.7V

1.0 1.5

∆VO41

VO5

500 900

mAIO4

IO5=50mA

5.3 5.6 5.9

Electrical characteristics (Unless otherwise noted: Ta=25˚C, Vcc=13.2V)

VO6≥8.25V

IO6=200mA

250

0.4

500

0.7

∆VO63

IO6

VO6

IO6=140mA

8.25 8.70 9.15

Symbol Min. Max. Unit ConditionsTyp.

Parameter

Circuit current at standby

Output voltage(VDD)1

Minimum I/O voltage difference

Output current capacity

Output voltage(COM)2

Minimum I/O voltage difference

Output current capacity

Minimum I/O voltage difference

Output voltage(TUNER5.6)5

Output current capacity

Minimum I/O voltage difference

Output voltage(TUNER8.7)6

Output current capacity

I/O voltage difference(AMP)3

Output current capacity

I/O voltage difference(ANT)4

Output current capacity

Block Diagram

N.C.

TUNER

8.7

ANT SW

TUNER

5.6

STB

5.6V

AMP Vcc ANT

COM

8.7V

TUNER

5.6

TUNER

8.7

GND

Regulator

121 2 3 4 5 6 7 8 9 10 11

BA4908

Over voltage

protection

∗ This product is not designed for protection against radioactive rays.

∗ Output current capacity must be set below MINIMUM of the specification.

1 2

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