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ASB Inc.

· sales@asb.co.kr · Tel: +82-42-528-7223

June 2011

ASL552

Wideband Linear Push-pull Amplifier MMIC

.

1) OIP3 and OIP2 are measured with two tones at an output power of +7 dBm/tone se-

parated by 1 MHz.

2) OIP2 is measured at F1+F2 Frequency.

Board Layout (FR4, 40x40 mm

Schematic

APPLICATION CIRCUIT

Frequency (MHz)

5

50

200

Magnitude S21 (dB)

14.5

15.2

14.5

Magnitude S11 (dB)

-20

-15

-18

Magnitude S22 (dB)

-4

-17

-15

Output P1dB (dBm)

23

22

23

Output IP3

27

37

41

Output IP2

75

76

68

Noise Figure (dB)

2.5

2.6

2.6

Device Voltage (V)

8

Current (mA)

100

S-parameters

Note: MABA-007681 2:1 impedance transformers

are used.

0

50

100

150

200

0

5

10

15

20

25

Frequency (MHz)

0

50

100

150

200

-25

-20

-15

-10

-5

0

Frequency (MHz)

0

50

100

150

200

-25

-20

-15

-10

-5

0

Frequency (MHz)

CATV Push-Pull

2 : 1 transformer

5 ~ 200 MHz

+8 V

RF IN

Vs=8 V

C3=10 uF

C4=470 pF

C1=470 pF

C2=390 pF

R1=120

W

RF OUT

C5=390 pF

C6=10 uF

Vs=8 V

L2=27 uH

L5=27 uH

L3=1.8 uH

L6=1.8 uH

L1=1.8 uH

R3=120

W

L4=1.8 uH

2 : 1

transformer

2 : 1

transformer

R2=1.8 k

W

R4=1.8 k

W

ASL552