WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: 408-577-6620 • e-mail: sales@wj.com • Web site: www.wj.com

April 2002

AM1

Product Description

The AM1 is a general purpose gain block that

offers good dynamic range in a low cost surface

mount package. The combination of flat IP3

and noise figure performance over frequency

makes it attractive for both narrow and broad-

band applications. Superior thermal design

allows the product to achieve +37 dBm IP3 per-

formance at a mounting temperature of +85°C

devices are 100% RF and DC tested.

Product Features

Functional Diagram

4

123

Function

Pin No.

Input

1

Ground

2

Output/Bias

3

Ground

4

High Dynamic Range Gain Block

Absolute Maximum Ratings

Parameter

Rating

Operating Case Temperature

-40 to +85°C

Storage Temperature

-55 to +125°C

DC Voltage

+5.5 V

Input RF Power (continuous)

+7 dBm

Operation of this device above any of these parameters may cause permanent damage.

Ordering Information

Part No.

Description

AM1

High Dynamic Range Amplifier

(Available in tape and reel)

AM1-PCB

Fully Assembled Application Circuit

Specifications

Parameter

Units

Min.

Typical

Max.

Frequency Range

MHz

60

3000

S21 - Gain

dB

13

14

16

S11 - Input Return Loss

dB

-9

S22 - Output Return Loss

dB

-15

Output IP3

dBm

+33

+37

Output P1dB

dBm

+18

Noise Figure

dB

2.4

Operating Current Range

mA

55

75

100

Supply Voltage

V

4.5

Test conditions unless otherwise noted.

1. T = 25°C, Vdd = 4.5 V, Frequency = 800 MHz, 50

Ω system.

2. OIP3 measured with two tones at an output power of 2 dBm/tone separated by 10 MHz. The

suppression on the largest IM3 product is used to calculate the OIP3 using a 2:1 slope rule.

3. MTBF calculated with channel temperature at 155˚C.

Typical Parameters

Parameter

Units

Typical

Frequency

MHz

900

1900

S21

dB

13.4

12.2

S11

dB

-12.5

-13.2

S22

dB

-21.2

-17.8

Output IP3

dBm

+37.5

+37.0

Output P1dB

dBm

+18.1

+18.0

Noise Figure

dB

2.4

2.6

Typical specifications reflect AM1 measured on application circuit (AM1-PCB).

Actual Size