Launch of low power gain blocks for RF and wireless applications

09-12-2022 | CML Micro | Power

CML Microcircuits offers the availability of the CMX90G701 and CMX90G702 Positive Gain-Slope Amplifiers. Produced using its innovative SµRF MMIC design capability, these general-purpose gain blocks are ideal for a broad range of wireless applications operating in the 6-18GHz frequency range, incorporating microwave backhaul, satellite communications, radar, 5G fixed wireless access and VSAT. They can also be employed to eradicate passive equalisers by compensating for system losses across their operating frequency range.

The devices are fabricated employing GaAs pHEMT process technology to deliver an optimal combination of high linearity, low noise and low DC power consumption. The CMX90G701 offers +1dB positive gain-slope, while the CMX90G702 has a +2dB gain-slope for applications needing higher gain-slope compensation. These devices provide a small signal gain within 9.5-11.5dB, a P1dB output rating of +10dBm, and a low noise figure of 3dB.

As with other devices in the SµRF family, the gain blocks are created for ease of use, with a high level of integration, reducing the external component count and smaller PCB footprints. As 'plug-in', cascadable gain blocks the devices eradicate the requirement for passive equalisation circuits within the system design and, due to an on-board active bias circuit, the devices function over a wide supply voltage of 2V to 5V, with a typical current of 22mA. Also, the RF ports of each device are internally matched to 50-Ohm, supporting rapid product development cycles, especially for mass-market applications.

"Following on from our earlier release of positive gain-slope amplifiers targeting the sub-7GHz markets, the CMX90G701 and CMX90G702 Low Power Gain Blocks move further up the RF spectrum to 6-18GHz. These devices employ CML's advanced SµRF design capability and add to our growing portfolio of positive gain-slope amplifiers. These devices address the growing market requirement for high-performing mmWave devices in various applications, including microwave backhaul, radar, and satellite communications", said Arwyn Roberts, product manager for RF and mmWave. "The CMX90G701 and CMX90G702 are now available, joining the CMX90G301 and CMX90G302 low-power amplifier range. Future products in the SµRF family will include a range of PAs, LNAs, Gain Blocks and FEMs, employing high-performance GaAs and GaN technologies."

By Natasha Shek