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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.

3) Pout = 106 dBuV for 84 channels.

Board Layout (FR4, 40x40 mm

Schematic

APPLICATION CIRCUIT

Frequency (MHz)

50

500

860

Noise Figure (dB)

1.8

1.85

1.95

Magnitude S21 (dB)

20.2

19.6

18.8

Magnitude S11 (dB)

-20

-17

-20

Magnitude S22 (dB)

-20

-17

-17

Output P1dB (dBm)

28

28

28

Output IP3

44.5

46.5

45

Output IP2

78

76

66

CSO (dBc)

3)

60

CTB (dBc)

3)

64

Device Voltage (V)

6.5

Current (mA)

433

Note: MABA-007159 1:1 impedance transformers

are used.

S-parameters

CATV Push-Pull

1 : 1 transformer

50 ~ 1000 MHz

+6.5 V

0

100

200

300

400

500

600

700

800

900

1000

0

5

10

15

20

25

Frequency (MHz)

-40

25

85

0

100

200

300

400

500

600

700

800

900

1000

-35

-30

-25

-20

-15

-10

-5

0

Frequency (MHz)

-40

25

85

0

100

200

300

400

500

600

700

800

900

1000

-35

-30

-25

-20

-15

-10

-5

0

Frequency (MHz)

-40

25

85

RF IN

Vs=6.5 V

C4=10 uF

RF OUT

C8=10 uF

Vs=6.5 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

L1=1 uH

(LQH31CN1R0M03)

R3=15 k

W

R4=15 k

W

ASL551

L2=1 uH

(LQH31CN1R0M03)