Overview
The HMC438MS8G, produced by Analog Devices Inc., is a low noise Divide-by-5 Static Divider that utilizes InGaP GaAs HBT (Heterojunction Bipolar Transistor) technology. This device is packaged in a low-cost 8-lead surface mount plastic package. It operates from DC to 7 GHz input frequency and is powered by a single +5V DC supply. The HMC438MS8G is designed to maintain good system noise performance with its low additive SSB (Single Side Band) phase noise of -153 dBc/Hz at 100 kHz offset.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Frequency Range | DC to 7 GHz | GHz |
| Supply Voltage | 4.75 to 5.25 V | V |
| Supply Current | 80 mA (typical at Vcc = 5V) | mA |
| SSB Phase Noise | -153 dBc/Hz @ 100 kHz offset | dBc/Hz |
| Output Power | -1 dBm | dBm |
| Package Type | 8-Lead Mini Small Outline Package with Exposed Pad (MSOP) | |
| RoHS Compliance | Yes (for HMC438MS8GE version) | |
| Maximum RF Input Power | 13 dBm | dBm |
Key Features
- Low noise Divide-by-5 Static Divider using InGaP GaAs HBT technology.
- Operates from DC to 7 GHz input frequency.
- Single +5V DC supply with a typical supply current of 80 mA.
- Low additive SSB phase noise of -153 dBc/Hz at 100 kHz offset.
- Output power of -1 dBm.
- 8-Lead Mini Small Outline Package with Exposed Pad (MSOP).
- RoHS-compliant version available (HMC438MS8GE).
- Requires DC blocking capacitors at RF input and output ports.
Applications
The HMC438MS8G is suitable for various high-frequency applications, including:
- Wireless communication systems.
- Radar systems.
- Test and measurement equipment.
- Satellite communications.
- Other high-frequency signal processing systems where low noise and stable frequency division are critical.
Q & A
- What is the input frequency range of the HMC438MS8G?
The input frequency range is from DC to 7 GHz.
- What is the typical supply voltage and current for the HMC438MS8G?
The typical supply voltage is 5V, and the typical supply current is 80 mA.
- What is the SSB phase noise of the HMC438MS8G at 100 kHz offset?
The SSB phase noise is -153 dBc/Hz at 100 kHz offset.
- What is the output power of the HMC438MS8G?
The output power is -1 dBm.
- What type of package does the HMC438MS8G come in?
The device is packaged in an 8-Lead Mini Small Outline Package with Exposed Pad (MSOP).
- Is the HMC438MS8G RoHS-compliant?
Yes, the HMC438MS8GE version is RoHS-compliant.
- What is the maximum RF input power for the HMC438MS8G?
The maximum RF input power is 13 dBm.
- Are DC blocking capacitors required for the HMC438MS8G?
Yes, DC blocking capacitors are required at the RF input and output ports.
- What are some common applications for the HMC438MS8G?
Common applications include wireless communication systems, radar systems, test and measurement equipment, and satellite communications.
- How should the circuit board be designed for the HMC438MS8G?
The circuit board should use RF circuit design techniques, with signal lines having 50 Ohm impedance and sufficient via holes to connect the top and bottom ground planes.
