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ASB Inc.

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

September 2012

ASL550

Wideband Linear Amplifier MMIC

.

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

separated 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)

16.2

15.8

14.5

Magnitude S11 (dB)

-17

-15

-14

Magnitude S22 (dB)

-16

-15

-14

Output P1dB (dBm)

26.5

27.5

27.5

Output IP3

36.5

40.5

43.5

Output IP2

72

73

77

Noise Figure (dB)

2.9

2.2

2.4

Device Voltage (V)

8

Current (mA)

240

Note: MABA-007681 2:1 impedance transformers

are used.

S-parameters

ASL550

RF IN

Vcc=8 V

C4=10 uF

C5=10 nF

C1=10 nF

C2=560 pF

2:1

transformer

RF OUT

C6=560 pF

C8=10 uF

Vcc=8 V

ASL550

2:1

transformer

L3=15 uH

L2=4.7 uH

L4=15 uH

L5=4.7 uH

R1=270

W

L1=2.2 uH

R2=910

W

C3=10 nF

L6=2.2 uH

R3=270

W

L8=15 uH

L9=15 uH

L10=4.7 uH

L7=4.7 uH

R4=910

W

C7=10

nF

CATV Push-Pull

2 : 1 transformer

5 ~ 200 MHz

+8 V

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)