Specifications and information are subject to change without notice.

WJ Communications, Inc

Phone 1-800-WJ1-4401 FAX: 408-577-6621

e-mail: sales@wj.com

Web site: www.wj.com

Page 3 of 5 April 2006

AH2

High Dynamic Range Amplifier

Product Information

Single – Ended CATV 75

: Evaluation Circuit: 50 – 860 MHz (AH2-PCB)

Typical RF Performance at 25

qC

Frequency

MHz 100

450

860

S21 – Gain

dB

14.5

14.5

13.2

S11 – Input R.L.

dB

-11.1 -12.7 -18.3

S22 – Output R.L.

dB

-9.5

-22.9 -10.6

Output IP2

(+5 dBm)

dBm

52.7

53.5

52.5

Output IP3

(+5 dBm / tone, 10 MHz spacing)

dBm

39.8

40.7

40.8

Noise Figure

dB

3.9

3.1

3.2

Device Bias

+5V @ 150mA

CTB

dBc

-71

CSO

dBc

-48

XMOD

dBc

-65

77 channels, 50-550MHz, +34dBmV/channel flat loading

IND

ID=L1

L=12 nH

IND

ID=L3

L=270 nH

CAP

ID=C4

C=1000 pF

CAP

ID=C3

C=1000 pF

CAP

ID=C1

C=1000 pF

CAP

ID=C2

C=2.2 pF

SUBCKT

ID=S1

NET="AH2"

PORT

P=1

Z=75 Ohm

PORT

P=2

Z=75 Ohm

+5 V

Circuit Board Material: .062” total thickness with a .028” FR-4 top RF layer, 4 layers (other

layers added for rigidity), 1 oz copper, 75 Microstrip.

Linearityvs. Frequency

0

10

20

30

40

50

60

0

200

400

600

800

1000

Frequency(MHz)

OIP3

OIP2

Input/OutputReturnLoss

andIsolation

-30

-20

-10

0

0

200

400

600

800

1000

Frequency(MHz)

S11

S12

S22

Gain

13

13.5

14

14.5

15

15.5

16

0

200

400

600

800

1000

Frequency(MHz)

S21-40C S2125C S2185C

CTB,CSO,andXMODVs.Frequency

-80

-70

-60

-50

-40

0

100

200

300

400

500

600

Frequency(MHz)

CTB

CSO

XMOD

77ChannelFlatLoading,+34dBmV/Ch.

NoiseFigure

0

1

2

3

4

5

0

200

400

600

800

1000

Frequency(MHz)

IP2andIP3vs. Power Out at 450MHz

25

30

35

40

45

50

55

-4

-2

0

2

4

6

8

10

Output power (dBm)

IP2

IP3