Overview
The HMC129G8, produced by Analog Devices Inc., is a GaAs MMIC (Monolithic Microwave Integrated Circuit) double-balanced mixer. This component is designed to operate within the 4 to 8 GHz frequency band and can be used as either an upconverter or a downconverter. It is notable for its compact size, lack of requirement for DC bias, and consistent IC performance, making it ideal for applications where space and reliability are critical.
Key Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 4 GHz to 8 GHz |
| LO Drive | +11 dBm to +15 dBm |
| RF Return Loss | -10 dB to -5 dB |
| LO Return Loss | -10 dB to -5 dB |
| IF Frequency Range | DC to several GHz (dependent on external capacitor) |
| IP2 (Second Order Intercept Point) | Typically 25 dBm at +15 dBm LO drive |
| IP3 (Third Order Intercept Point) | Typically 15 dBm at +15 dBm LO drive |
| P1dB (1 dB Compression Point) | Typically -5 dBm at +15 dBm LO drive |
| Package Options | Chip (HMC129), Hermetic Surface Mount Package (HMC129G8), RoHS compliant SMT |
Key Features
- Compact size, suitable for integration into hybrid MICs without DC bias or external baluns.
- No DC bias required.
- Consistent IC performance across the specified frequency range.
- DC coupled RF, LO, and IF ports.
- RF and LO ports matched to 50 Ohms.
- IF port requires external DC blocking for frequencies above DC.
Applications
- Microwave and VSAT Radios.
- Test Equipment.
- Military Electronic Warfare (EW), Electronic Countermeasures (ECM), and Command, Control, Communications, and Intelligence (C3I) systems.
- Space Telecommunications.
Q & A
- What is the frequency range of the HMC129G8?
The HMC129G8 operates within the 4 to 8 GHz frequency band. - What are the typical LO drive levels for the HMC129G8?
The typical LO drive levels range from +11 dBm to +15 dBm. - Does the HMC129G8 require DC bias?
No, the HMC129G8 does not require DC bias. - What are the return loss specifications for the RF and LO ports?
The return loss for both RF and LO ports is typically between -10 dB and -5 dB. - What is the IP3 (Third Order Intercept Point) of the HMC129G8?
The IP3 is typically around 15 dBm at +15 dBm LO drive. - What are the package options available for the HMC129?
The HMC129 is available in a chip form (HMC129), a hermetic surface mount package (HMC129G8), and a RoHS compliant SMT package. - What are the typical applications of the HMC129G8?
The HMC129G8 is typically used in microwave and VSAT radios, test equipment, military EW, ECM, C3I systems, and space telecommunications. - How should the IF port be handled for frequencies above DC?
The IF port should be DC blocked externally using a series capacitor chosen to pass the necessary IF frequency range. - What is the maximum current that the IF port can handle for DC operation?
The IF port must not source or sink more than 2 mA of current to avoid die non-function or failure. - How is the backside of the die connected?
The backside of the die must be connected to RF ground.
