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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 +9 dBm/tone sepa-

rated by 6 MHz.

2) OIP2 is measured at F1+F2 Frequency.

3) CSO & CTB was measured at 335.25 MHz. For 116 flat channels at the input, measured

at the output were 77 analog channels (55 MHz to 550 MHz) @ +20 dBmV per channel

and 39 digital channels (550 MHz to 750 MHz) @ 6 dB lower than that of the analog channel.

Board Layout (FR4, 40x40 mm

Schematic

APPLICATION CIRCUIT

Frequency (MHz)

50

500

860

Noise Figure (dB)

2.0

2.0

2.2

Magnitude S21 (dB)

17.1

17.0

16.9

Magnitude S11 (dB)

-15

-15

-16

Magnitude S22 (dB)

-14

-17

-20

Output P1dB (dBm)

23

24

24

Output IP3

40

43

41.5

Output IP2

53

54

53

CSO

74

CTB

75

Device Voltage (V)

8

Current (mA)

120

S-parameters & Noise Figure

Gain Flatness (0.2 dB)

CATV

50 ~ 1000 MHz

+8 V

* Note: Gain slope can be adjusted

by L4 and R1 values at the

expense of S11 & S22.

0

100

200

300

400

500

600

700

800

900 1000 1100

0

5

10

15

20

25

Frequency (MHz)

-40

25

85

0

100

200

300

400

500

600

700

800

900 1000 1100

-25

-20

-15

-10

-5

0

Frequency (MHz)

-40

25

85

C2=100 nF

C4=4.7 nF

Vcc=8 V

RF IN

RF OUT

C5=68 pF

C6=1

mF

ASL550

C1=100 pF

C3=0.3 pF

+

L3=220 nH

(Coil Inductor)

L2=5.6 nH

(Coil Inductor)

L1=270 nH

(Coil Inductor)

L4=68 nH

R1=240

W

0

100

200

300

400

500

600

700

800

900

1000 1100

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

2.2

2.4

2.6

2.8

3.0

Frequency (MHz)

-40

25

85

0

100

200

300

400

500

600

700

800

900

1000 1100

-25

-20

-15

-10

-5

0

Frequency (MHz)

-40

25

85