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DDA8-0.1-8G-3514 Digital attenuator
Attenuator

Digital attenuator DDA8-0.1-8G-3514

0.1~8GHz, Attenuation range0~63dB, step0.25dB, 0.3W, SMA

Model
DDA8-0.1-8G-3514
Stock
In stock: 1
Address
BLD# 4-3A, No. 118 Hangtian Road, Chenghua District, Chengdu, Sichuan, China.

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Description

Main specifications

ParametersMinTypicalMaxUnits
Frequency0.1~8GHz
Attenuation range0~63dB
IL810dB
VSWR1.51.9
Attenuation accuracy root mean square1.52dB
Channel isolation60dB
Input power (RF input port)+25dBm
Input power (RF output port)+18dBm
Attenuation switching time100ns

Other parameters

step0.25dB
Power Capacity0.3W Design assurance
Impedance50Ω
ConnectorSMA-K
SurfaceNickel plating
Working voltage+5V, USB-C interface power supply, equipped with power adapter
Working current250mA
Operation Temp.-0~+50℃ Design assurance
Storage Temp.-30~+85℃ Design assurance
Control portUSB-C/RJ-45
OtherFour sets of attenuation, independent control

Control Command Description

This product has 4 channels of attenuation and independent control. The control command format is AA TD ATT1 ATT2 00 00 55, where TD represents the selected attenuation channel (1-4), ATT1 and ATT2 represent the attenuation amount (the maximum attenuation amount for a single attenuation is 31.75dB), and control software can be provided

Select channel 1: AA 01 xx xx 00 00 00 55

Select channel 2: AA 01 xx xx 00 00 00 55

Select channel 3: AA 01 xx xx 00 00 00 55

Select channel 4: AA 01 xx xx 00 00 00 55

Attenuation control command

0 dBAA 01 00 00 00 00 00 55
0.25 dBAA 01 01 00 00 00 00 55
0.5 dBAA 01 02 00 00 00 00 55
1 dBAA 01 04 00 00 00 00 55
2 dBAA 01 08 00 00 00 00 55
4 dBAA 01 10 00 00 00 00 55
8 dBAA 01 20 00 00 00 00 55
16 dBAA 01 40 00 00 00 00 55
31.7 dBAA 01 FF 00 00 00 00 55
32.25dBAA 01 FF 02 00 00 00 55
32.75dBAA 01 FF 04 00 00 00 55
33.75dBAA 01 FF 08 00 00 00 55
35.75dBAA 01 FF 10 00 00 00 55
39.75dBAA 01 FF 20 00 00 00 55
47.75dBAA 01 FF 40 00 00 00 55
63.5dBAA 01 FF FF 00 00 00 55

Typical test data

Frequency GHzVSWRIL (dB)0.25 dB0.5 dB1 dB2 dB4 dB8 dB16 dB63.5dBIsolation dB
0.11.17-1.17-0.25-0.51-0.95-1.73-3.58-7.48-15.1-59.2-86.1
0.641.17-1.81-0.23-0.47-0.89-1.85-3.74-7.96-15.9-62.2-84.9
1.291.09-2.08-0.25-0.5-0.93-1.87-3.78-8.04-16.2-62.3-84.9
1.931.34-2.57-0.27-0.51-0.94-1.84-3.74-8.01-16.2-63-84.6
2.571.34-2.95-0.24-0.46-0.85-1.84-3.74-8.09-16.3-63.5-70.9
3.211.25-3.42-0.24-0.46-0.87-1.85-3.76-8.15-16.6-64.6-72.5
3.861.14-3.77-0.23-0.45-0.85-1.85-3.75-8.14-16.6-65.3-74.5
5.141.38-4.48-0.2-0.4-0.77-1.87-3.76-8.18-16.7-64.9-60.5
6.431.26-5.97-0.23-0.47-0.9-1.89-3.75-8.11-16.5-67.6-61.1
7.071.39-6.56-0.17-0.4-0.84-1.98-3.85-8.33-16.5-62.2-75
8.361.69-8.54-0.15-0.42-0.98-2.05-3.98-8.7-16.1-60.9-68.1

Reference picture

Configuration(mm)

Typical test curve

Typical switching time - rising and falling edges

Description of the network port system

1、The device defaults as a TCP/ip server;

2、Default IP address: 192.168.1.100;

3、Default port number: 1000;

Note

1. Clean the surface of the product, do not soak the product in a cleaning solution; 2. This product belongs to electrostatic sensitive devices. Pay attention to anti-static measures during installation or storage; 3. If the overall temperature is greater than 125 ℃, please consult with us before placing an order.

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