TA2152FLG

2006-04-19

6

(3) Adjustment of DC output voltage

will be

2

power supply, leave pin 10 open.

In these cases the DC output voltage will be

2

V

0.7

.

(4) RF IN pin

The ripple rejection ratio can by improved by connecting a capacitor to this pin. Connection of a capacitor is

recommended, particularly for output-coupling type.

(5) Output application of power amplifier

For output-coupling type the center amplifier is not used with the result that current consumption is low.

Please set the C-AMP SW pin (pin 13) accordingly.

Output-coupling type: Pin 13 is connected to GND.

OCL type: Pin 13 is open.

RR

− C (RF IN)

RF IN capacitance

C

(µF)

80

70

60

50

30

40

0.1

0.2

0.5

1

2

5

10

Output-coupling type

VCC1 = 2.4 V

VCC2 = 1.2 V (ripple signal applied)

fr = 100 Hz

Vr = −20dBV

BIAS IN

= 4.7 µF

Open

Figure 3

Improvement of ripple rejection ratio