Datasheet > AP601-PCB900

AP601-PCB900

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
WJCI		放大器
页数	文件大小	规格书
10页	767K
描述
High Dynamic Range 1.8W 28V HBT Amplifier

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AP601-PCB900 数据手册

AP601

High Dynamic Range 1.8W 28V HBT Amplifier

Application Circuit PC Board Layout

Baseplate Configuration

Notes:

1. Please note that for reliable operation, the evaluation board will have to be mounted to a much larger

heat sink during operation and in laboratory environments to dissipate the power consumed by the

device. The use of a convection fan is also recommended in laboratory environments.

2. The area around the module underneath the PCB should not contain any soldermask in order to

maintain good RF grounding.

Circuit Board Material: 0.0147” Rogers Ultralam 2000, single layer, 1 oz

copper, ε_r= 2.45, Microstrip line details: width = .042”, spacing = .050”

3. For proper and safe operation in the laboratory, the power-on sequencing is recommended.

Evaluation Board Bias Procedure

Following bias procedure is recommended to ensure proper functionality of AP601 in a laboratory environment. The sequencing is not

required in the final system application.

Bias.

Vcc

Vbias

Vpd

Voltage (V)

+28

Turn-on Sequence:

1. Attach input and output loads onto the evaluation board.

2. Turn on power supply Vcc = +28V.

3. Turn on power supply Vbias = +5V. At this point, the only current drawn by the device is leakage current (< 25μA).

4. Turn on power supply Vpd = +5V. Power supply Vcc should now be drawing typical Icq = 40 mA.

5. Turn on RF power.

Turn-off Sequence:

1. Turn off RF power.

2. Turn off power supply Vpd = +5V.

3. Turn off power supply Vbias = +5V.

4. Turn off power supply Vcc = +28V.

Notes:

1. Icq can be adjusted with the resistor R2 from the Vpd (+5V) supply and the PIN_VPD (pin14) of the amplifier. Increasing R2

results in a lower Icq. Icq should not be increased above 80mA.

2. Vpd is used as a reference for the internal active bias circuitry. It can be used to turn on/off the amplifier. Ipd depends on the Icq

quiescent current setting. Ipd can be up to 2mA at a quiescent current setting of 40mA.

3. Vbias should be maintained fixed at +5V. Ibias will change based on RF input power level. It can be up to 2mA on the AP601.

Ipd vs Icq

Ibias vs Output Power

1.5

0.5

100

Icq Setting (mA)

Output Average Power (dBm)

Specifications and information are subject to change without notice

Page 3 of 10 May 2007 ver 1

WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com

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