At the SCTE Cable-Tec Expo in Atlanta (21-24 October), RF front-end component maker and foundry services provider TriQuint Semiconductor Inc of Hillsboro, OR, USA has launched the first two members of its cost-effective TriAccess hybrid-packaged power doubler family. The CATV infrastructure devices are the first to utilize proprietary on-die linearization for what is claimed to be best-in-class performance including excellent gain and low distortion. TriQuint has also announced full production of two new GaN monolithic microwave integrated circuit (MMIC) power doublers for CATV infrastructure.
TriQuint is now sampling its new gallium nitride (GaN) and gallium arsenide (GaAs) hybrid power doublers as well as its MMIC power doublers.
The firm says that its fully released and wide-ranging CATV portfolio includes both hybrid package and surface-mount package (SMP) products that can reduce part counts and improve performance in 12-24V systems. The new hybrid products with on-die linearization complement the firm's recently released 1200MHz, 12V GaAs and 24V GaN surface-mount devices. TriQuint is a vertically integrated CATV/FTTH solutions provider with all key technologies in-house, enabling what is claimed to be cost-effective, high-performance broadband content delivery through infrastructure, head-end and subscriber premises solutions.
TriQuint is also addressing the future of CATV design and the new DOCSIS 3.1 specification. On Wednesday 23 October, at a Cable-Tec Expo workshop 'HFC on Steroids: Options for Energizing the HFC Plant into the Future' senior director of engineering Chris Day is presenting the paper 'Rethinking Amplifier Technology for DOCSIS 3.1', which focuses on meeting the challenges of this demanding new specification through increased bandwidth, higher RF output power and improved power efficiency. He is demonstrating how these goals can be achieved without adding component costs.
Housed in SOT115J packages and operating over a frequency range of 50-1000GHz from a supply voltage of 24V and drain current of 440mA, the TAT8884HO and TAT8888 CATV GaAs power doubler hybrids have gains of 26dB and 24dB and noise figures of 5.0dB and 3.5dB, respectively, and CSO/CTB of -75/-78dBc (at 56dBmV) and -75/-69dBc (at 61dBmV).
Housed in 5mm x 7mm QFN packages and operating over a frequency range of 50-1200GHz from supply voltages of 24V and 12V and drain currents of 440mA and 650mA respectively, the TAT9988 GaN CATV power doubler MMIC and TAT8804D1H GaAs CATV power doubler MMIC have gains of 24dB and 21dB, respectively, both with a noise figure of 4.0dB, and CSO/CTB of -65/-65dBc (at 61dBmV) and -82/-78dBc (at 59dBmV), respectively.
