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 7 of 9 May 2007

AH202

1W High Linearity Amplifier

Application Circuit: 2140 MHz (AH202-PCB2140)

Typical RF Performance at 25°°C

Frequency

2140 MHz

S21 - Gain

15 dB

S11

- 8 dB

S22

- 13 dB

Output P1dB

+ 29.4 dBm

Output IP3

+ 45.5 dBm

W-CDMA Ch. Power

@ -45 dBc ACLR

+ 20.5 dBm

Noise Figure

4.8 dB

Supply Voltage

+11 V

Supply Current

330 mA

Notes:

1.

The amplifier should be connected directly to a +11 V regulator; no dropping resistor is required.

2.

If no DC signal is present at the input (pin 1), C1 can be removed. The gate (input pin) is internally grounded in the amplifier.

3.

Component sizes are 0603 unless otherwise noted. RF choke L1 should be wirewound ceramic type to insure sufficient current carrying

capacity. Coilcraft’s 1008 CS series (part # 1008CS-220X_B) is recommended.

4.

C7 is located at silk screen marker “6” on the WJ evaluation board.

S-Parameters

Vd = +11.0V, Temp = +25°C

6

8

10

12

14

16

2000

2100

2200

2300

Frequency (MHz)

-25

-20

-15

-10

-5

0

S21

S11

S22

Noise Figure

Vd = + 11V, Temp = 25°C

0

1

2

3

4

5

6

2000

2100

2200

2300

Frequency (MHz)

OIP3 vs. Pout

Vd = +11.0 V, Temp = +25°C

35

40

45

50

55

5

7

9

11

13

15

17

Pout (dBm)

ACLR vs. Channel Power

f = 2140MHz, 3GPP W-CDMA, Test Model 1, +32 DPCH, ±5 MHz offset

-60

-55

-50

-45

-40

15

16

17

18

19

20

21

22

Output Channel Power (dBm)

C A P

ID=C 2

C = 56 pF

C AP

ID = C3

C = 56 pF

CAP

ID =C 7

C=1 .0 pF

CAP

ID=C 4 (0 80 5)

C=1 000 pF

CAP

ID =C5 (12 06 )

C=1e 5 pF

IND

ID=L 1 (1 008 )

L= 2 2 nH

T LIN

ID =T L1

Z 0= 50 O hm

EL = 28 D eg

F 0= 21 40 M H z

C AP

ID = L2

C = 2.2 p F

S UB C K T

ID=S 1

N ET ="A H 20 2_F"

P O R T

P =1

Z = 50 O hm

P O R T

P =2

Z = 50 O hm

+ 11V