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Home » NEWEST Products » New by Manufacturer » STMicroelectronics » STHVDAC-253M Antenna Tuning Circuit - STM
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STMicroelectronics STHVDAC-253M Antenna Tuning Circuit

STMicroelectronics STHVDAC-253M
Antenna Tuning Circuit

STMicroelectronics STHVDAC-253M Antenna Tuning Circuit is a high voltage Digital-to-Analog Converter (DAC) that integrates three independent high voltage outputs, allowing it to simultaneously optimize antenna performance in three different frequency bands. STHVDAC-253M meets the wide tuning bias voltage requirement of the BST tunable capacitances through a bias voltage ranging from 0 to 25V. Fully controlled through the RFFE serial interface, STHVDAC-253M enables significant improvement in mobile phones in terms of radiated performances, making the performance almost insensitive to the external environment. The device is available in WLCSP for stand-alone or SiP module integration.

Features
  • Dedicated ASIC to control BST tunable capacitances
  • Operation compliant with cellular systems requirements
  • Integrated boost converter with 3 programmable outputs (from 0 to 25V)
  • Low power consumption
  • MIPI RFFE serial interface 1.8V
  • Available in WLCSP for stand-alone or SiP module integration
  • RF tunable passive implementation in mobile phones to optimize the radiated performances
Applications
  • Cellular antenna tunable matching network in multi-band GSM/WCDMA mobile phone
  • Compatible with open loop antenna tuner application
Functional Block Diagram
Functional Block Diagram
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