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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 +9 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)

16.1

15.7

14.2

Magnitude S11 (dB)

-17

-15

-14

Magnitude S22 (dB)

-17

-15

-14

Output P1dB (dBm)

26

26

26

Output IP3

35

38

44

Output IP2

82

79

75

Noise Figure (dB)

3.1

2.3

2.5

Device Voltage (V)

8

Current (mA)

240

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

C4=10 uF

C5=10 nF

C1=10 nF

C2=560 pF

R1=270

W

RF OUT

C6=560 pF

C8=10 uF

Vs=8 V

L3=15 uH

L8=15 uH

L5=4.7 uH

L10=4.7 uH

L1=2.2 uH

R3=270

W

L6=2.2 uH

2 : 1

transformer

2 : 1

transformer

R2=910

W

R4=910

W

L2=4.7 uH

C3=10 nF

L7=4.7 uH

C7=10 nF

L4=15 uH

L9=15 uH

ASL552