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ASB Inc.

· sales@asb.co.kr · Tel: +82-42-528-7220

June 2012

ASL551

Wideband Linear Push-pull Amplifier MMIC

.

1) OIP3 and OIP2 are measured with two tones at an output power of +12 dBm/tone

separated by 6 MHz.

2) OIP2 is measured at F1+F2 Frequency.

Board Layout (FR4, 40x40 mm

Schematic

APPLICATION CIRCUIT

Frequency (MHz)

50

500

860

Noise Figure (dB)

1.75

1.9

2.15

Magnitude S21 (dB)

20.3

19.6

18.8

Magnitude S11 (dB)

-20

-17

-20

Magnitude S22 (dB)

-20

-17

-17

Output P1dB (dBm)

28

28

28

Output IP3

42

45

43

Output IP2

74

72

65

Device Voltage (V)

8

Current (mA)

360

Note: MABA-007159 1:1 impedance transformers

are used.

S-parameters

CATV Push-Pull

1 : 1 transformer

High Linearity

50 ~ 1000 MHz

+8 V

0

100

200

300

400

500

600

700

800

900

1000

0

5

10

15

20

25

Frequency (MHz)

0

100

200

300

400

500

600

700

800

900

1000

-30

-25

-20

-15

-10

-5

0

Frequency (MHz)

0

100

200

300

400

500

600

700

800

900

1000

-30

-25

-20

-15

-10

-5

0

Frequency (MHz)

RF IN

Vs=8 V

C4=10 uF

RF OUT

C8=10 uF

Vs=8 V

1 : 1

transformer

1 : 1

transformer

R1=470

W

R2=470

W

C1=1 uF

C2=1 uF

C3=1 uF

C5=1 uF

C6=1 uF

C7=1 uF

C9=0.5 pF

R3=51 k

W

R4=51 k

W

ASL551

L1=1 uH

(LQH31CN1R0M03)

L2=1 uH

(LQH31CN1R0M03)