CHC6054-QQA vs CHC6094-QKB: UMS Ka-Band and Q-Band RF Front-Ends
The UMS CHC6054-QQA and CHC6094-QKB are integrated millimeter-wave RF front-ends combining transmit amplification, receive amplification and T/R switching in compact QFN packages.
The CHC6054-QQA covers Ka-Band and adjacent 24.25–30.5GHz systems using mixed GaN and GaAs technologies. The CHC6094-QKB targets 37–41GHz Q-Band systems and integrates a 2W GaN transmit path with a receive path and input/output switches.
Specification Comparison
| Parameter | CHC6054-QQA | CHC6094-QKB |
| Frequency Range | 24.25–30.5GHz | 37–41GHz |
| Transmit Gain | 28dB | 23dB |
| Transmit Saturated Power | 31dBm, approximately 1.25W | 33dBm, approximately 2W |
| Published Tx Linearity | −36dBc ACPR at 23dBm average output | −33dBc ACPR at 25dBm average output |
| Receive Gain | 18dB | 23dB |
| Receive Noise Figure | 3.25dB | 4.8dB |
| Receive Input P1dB | −7dBm | −12dBm |
| Transmit Bias | 25V, 40mA | 23V, 60mA |
| Receive Bias | 4V, 60mA | 12V, 40mA |
| Technology | 150nm GaN-on-SiC and 150nm GaAs | GaN-on-SiC HEMT |
| Package | 28-lead 4 × 5mm QFN | 24-lead 4 × 4mm QFN |
| Moisture Sensitivity | MSL3 | MSL3 |
Which RF Front-End Should You Choose?
Choose CHC6054-QQA for Ka-Band and 28GHz Systems
The CHC6054-QQA is the appropriate choice for systems operating between 24.25GHz and 30.5GHz, including 28GHz radio equipment.
Its mixed-technology architecture uses GaN-on-SiC for the high-power transmit function and GaAs for the receive path. It also provides the lower receiver noise figure of the two models, making it suitable for systems where receive sensitivity is a key requirement.
Choose CHC6094-QKB for 37–41GHz Q-Band Systems
The CHC6094-QKB is intended for Q-Band radios, 39GHz fixed wireless access and high-frequency phased-array antennas.
It provides higher transmit output and higher receiver gain in a smaller QFN package. Its complete front-end is manufactured using GaN-on-SiC technology and is designed for 5G terrestrial networks and high-throughput wireless links.
Typical Applications
28GHz and 39GHz 5G radio systems
Fixed wireless access equipment
Active phased-array antennas
Millimeter-wave telecom radios
Compact transmit/receive modules
High-capacity point-to-point wireless links
The two models address different frequency ranges rather than serving as direct alternatives: CHC6054-QQA supports lower Ka-Band systems, while CHC6094-QKB supports higher Q-Band networks.
Price and RFQ
For pricing and availability, specify the complete UMS part number, required quantity, target delivery date and whether the requirement is for evaluation or production.
Frequently Asked Questions
1. Can CHC6054-QQA be used in a 28GHz 5G radio?
Yes. Its operating range includes the 28GHz region, making it suitable for applicable 5G, telecom and phased-array systems.
2. Does CHC6094-QKB cover 39GHz fixed wireless access?
Yes. Its 37–41GHz range covers the 39GHz region and UMS specifically positions it for high-throughput fixed wireless access and 5G terrestrial networks.
3. Which model offers the lower receive noise figure?
The CHC6054-QQA provides the lower published receiver noise figure and is generally more suitable when receive sensitivity is the main priority.
4. Are CHC6054-QQA and CHC6094-QKB interchangeable?
No. They cover different frequency bands and use different package sizes, pin layouts, bias conditions and semiconductor architectures.
5. Are these devices only power amplifiers?
No. Both are integrated RF front-ends containing transmit and receive paths together with RF switching, reducing the number of separate components required in a T/R module.
