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.
|DS10107: Antenna tuning circuit||1.0||538 KB|
|AN4440: RFFE HVDAC control||1.0||1 MB|
|TN1173: Packing information for IPAD™, protection, rectifiers, thyristors and AC Switches||5.0||1 MB|
|Part Number||Package||Packing Type||Operating Temperature (°C) (min)||Operating Temperature (°C) (max)||Marketing Status||Unit Price (US$) *||Quantity||ECCN (EU)||ECCN (US)||Country of Origin||More info||Order from ST||Order from Distributors|
|STHVDAC-253MF3||Flip-Chip 400u||Tape And Reel||-25||85||Active : Product is in volume production||0.57||10||NEC||EAR99||CHINA||MORE INFO||DISTRIBUTOR AVAILABILITY|
|Part Number||Marketing Status||Package||Grade||RoHS Compliance Grade||Material Declaration**|
(**) 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.