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Name: HMC998A
Brand: Analog Devices Inc.
SKU: HMC998A
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. HMC998A

Part No.:: HMC998A

Manufacturer:: Analog Devices Inc.

Package:: Die

Datasheet:: HMC998A.pdf

Description:: IC MMIC AMP 2W DIE

In Stock:: 2228

Quantity:: Add To Cart

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HMC998A Specifications

Packaging:
Tray
Series:
-
ProductStatus:
Active
Frequency:
100MHz ~ 20GHz
P1dB:
31dBm
Gain:
12dB
NoiseFigure:
8dB
RFType:
VSAT
Voltage-Supply:
15V
Current-Supply:
500mA
TestFrequency:
-
MountingType:
Surface Mount

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HMC998A information

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HMC998A Typical application Circuitry

HMC998A

HMC998A is a high-performance, wideband, programmable gain amplifier (PGA) developed by Analog Devices. It is designed for applications requiring precise gain control, high linearity, and wide dynamic range. The HMC998A is commonly used in telecommunications, radar systems, test equipment, and broadband communication systems.

Application Scenario: Telecommunications Signal Chain

In telecommunications, the HMC998A can be integrated into the signal chain to amplify varying signal levels, ensuring optimal signal quality and strength for transmission and reception.

Parameter Features

- Wideband Operation: The HMC998A supports a broad frequency range, making it versatile for various RF and IF applications.

- Programmable Gain: Offers precise gain control, allowing for dynamic adjustment of amplification levels to accommodate different signal strengths.

- High Linearity: Ensures minimal distortion in the amplified signal, critical for maintaining signal fidelity in communication systems.

Telecommunications Signal Chain Circuit Design

Designing a signal chain in telecommunications using the HMC998A involves several critical considerations:

1. Power Supply Connection: Connect the Vdd pin of the HMC998A to a regulated power supply, ensuring it meets the specified voltage requirements for stable operation.

2. Input Signal Coupling: The input signal should be coupled to the RF input pin (RFin) through a DC blocking capacitor. This setup prevents DC voltage from affecting the HMC998A's performance.

3. Gain Control: Utilize the gain control pins (Vgc) to adjust the gain dynamically. By applying different voltages to these pins, the gain can be precisely controlled to match the signal requirements.

4. Output Matching: The output (RFout) may require impedance matching to ensure optimal power transfer to the subsequent stage in the signal chain. This typically involves designing a matching network using inductors and capacitors.

5. Decoupling and Bypassing: Implement proper decoupling and bypassing techniques on the power supply pins to minimize noise. This often involves placing capacitors close to the HMC998A's power supply pins.

Design Considerations

When incorporating the HMC998A into a circuit, several key factors must be addressed:

- Thermal Management: Consider the thermal dissipation of the HMC998A, especially at high gain settings and continuous operation, to prevent overheating and ensure reliability.

- Signal Integrity: Maintain signal integrity by carefully designing the PCB layout to minimize parasitic elements and signal path lengths, particularly for high-frequency signals.

- EMI/RFI Considerations: Implement strategies to minimize electromagnetic interference (EMI) and radio frequency interference (RFI), such as shielding and proper grounding practices, to ensure the HMC998A operates without disturbances.

- Component Selection: Choose external components, such as capacitors and inductors for matching networks, that are suitable for the operating frequency range and power levels of the HMC998A.

By carefully addressing these design aspects, the HMC998A can be effectively utilized in telecommunications systems, providing precise gain control and high-quality signal amplification to meet the demands of modern communication networks.

HMC998A FAQ

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3. Are the HMC998A price and inventory displayed accurate?

The price and inventory of HMC998A fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

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Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

6. What is the process for return or replacement of HMC998A?

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 HMC998A we delivered, we will accept the replacement or return of the HMC998A 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 HMC998A.

(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