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Name: HMC349AMS8GE
Brand: Analog Devices Inc.
SKU: HMC349AMS8GE
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Analog Devices Inc. HMC349AMS8GE

Part No.:: HMC349AMS8GE

Manufacturer:: Analog Devices Inc.

Package:: 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) Exposed Pad

Datasheet:: HMC349AMS8GE.pdf

Description:: IC RF SWITCH SPDT 4GHZ 8MSG

In Stock:: 3865

Quantity:: Add To Cart

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HMC349AMS8GE Typical application Circuitry

HMC349AMS8GE

The HMC349AMS8GE is a high-performance GaAs MMIC SPDT (Single Pole Double Throw) non-reflective switch chip designed for use in RF and microwave applications. This chip is renowned for its low insertion loss, high isolation, and fast switching speed.

Applications: The HMC349AMS8GE is widely used in communication systems, radar systems, test equipment, and satellite communication where precise signal routing is crucial. It is particularly suited for applications requiring fast switching between signal paths and high isolation, such as in RF transceivers, signal processing systems, and antenna switching circuits.

Parameters: This SPDT switch operates over a frequency range of DC to 4 GHz and offers high isolation of up to 45 dB with low insertion loss of 0.6 dB at 2 GHz. It features a fast switching speed of 8 ns and can handle input power levels up to 27 dBm.

Circuit Design for an RF Transceiver Application:

1. Signal Routing: Utilize the HMC349AMS8GE in the RF transceiver to switch between transmit and receive signal paths. Connect the common port to pin 5 (RFC), the transmit path to pin 3 (RF1), and the receive path to pin 1 (RF2).

2. Control Logic: Interface a microcontroller or FPGA with the HMC349AMS8GE to control the switching state. Connect the control voltage (Vctl) to pin 6 (Vctl) with a logic high (3V) for RF1 path and logic low (0V) for RF2 path.

3. Power Supply: Provide a stable +5V supply to pin 8 (Vdd) and ground pin 4 (GND) for proper operation. Use bypass capacitors close to the supply pin to filter out noise.

4. Impedance Matching: Design proper impedance matching networks at the common port and both RF ports (pins 5, 3, and 1, respectively) to ensure maximum power transfer and minimize reflections.

5. Isolation: Ensure that the control logic is isolated from the RF signal path to prevent interference and maintain signal integrity.

6. Thermal Management: Ensure adequate heat sinking for the HMC349AMS8GE to dissipate heat generated during operation and maintain stable performance.

Design Considerations: When designing a circuit with the HMC349AMS8GE, it is crucial to consider the impedance matching for optimal performance, the power supply stability to ensure consistent operation, and the isolation between control logic and RF signal path. Additionally, thermal management should be carefully planned to prevent overheating.

By integrating the HMC349AMS8GE into your RF transceiver design, you can achieve precise signal routing with high isolation, low insertion loss, and fast switching speed, enhancing the overall performance and flexibility of the system.

HMC349AMS8GE information

HMC349AMS8GE Specifications

Packaging:
Strip
Series:
-
ProductStatus:
Active
RFType:
General Purpose
Topology:
-
Circuit:
SPDT
FrequencyRange:
0Hz ~ 4GHz
Isolation:
50dB
InsertionLoss:
1.2dB
TestFrequency:
3GHz
P1dB:
34dBm
IIP3:
53dBm (min)
Features:
-
Impedance:
50Ohm
Voltage-Supply:
5V
OperatingTemperature:
-40°C ~ 85°C

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6. What is the process for return or replacement of HMC349AMS8GE?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the HMC349AMS8GE we delivered, we will accept the replacement or return of the HMC349AMS8GE only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of HMC349AMS8GE.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations