The ST BST capacitance controller STHVDAC-253M is a high voltage digital to analog converter (DAC), specifically designed to control and meet the wide tuning bias voltage requirement of the BST tunable capacitances.
It provides 3 independent high voltage outputs, thus having the capability to control 3 different capacitances. It is fully controlled through a RFFE serial interface.
BST capacitances are tunable capacitances intended for use in mobile phone application, and dedicated to RF tunable applications. These tunable capacitances are controlled through a bias voltage ranging from 0 to 25 V. The implementation of BST tunable capacitance in mobile phones enables significant improvement in terms of radiated performances, making the performance almost insensitive to the external environment.
- Dedicated ASIC to control BST tunable capacitances
- Operation compliant with cellular systems requirements
- Integrated boost converter with 3 programmable outputs (from 0 to 25 V)
- Low power consumption
- MIPI RFFE serial interface 1.8 V
- Available in WLCSP for stand-alone or SiP module integration
- RF tunable passive implementation in mobile phones to optimize the radiated performances
DS10107: Antenna tuning circuit
AN4440: RFFE HVDAC control
Technical Notes & Articles
TN1173: Axial, through hole, surface mount and chip scale packages for IPAD™, protection, rectifiers, thyristors and AC Switches
Sample & BuyTop
|Part Number||Marketing Status||Package||Packing Type||Operating Temperature (min)||Operating Temperature (max)||Order From ST||Unit Price (US$)*|
|Distributor Availability||RoHS Compliance Grade||Download
|STHVDAC-253MF3||Active||Flip-Chip 400u||Tape And Reel||-25||85||-||.57||No availability reported, please contact our Sales office||Ecopack2||PDF|
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.