STHVDAC-303:Antenna Tuning Circuit

The ST BST capacitance controller STHVDAC-303 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 in parallel. It is fully controlled through a 3-wire 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 30 V. The implementation of BST tunable capacitance in mobile phones enables significant improvement in terms of radiated performance, making the performance almost insensitive to the external environment.

Key Features

  • Dedicated ASIC to control BST tunable capacitances
  • Operation compliant with cellular systems requirements
  • Integrated boost converter with 3 programmable outputs (from 0 to 30 V)
  • Low power consumption
  • 3-wire serial interface (30 or 32 bit SPI)
  • Available in WLCSP for stand-alone or SiP module integration
  • RF tunable passive implementation in mobile phones to optimize the radiated performances
Product Specifications
DescriptionVersionSize
DS7059: High voltage BST capacitance controller4.0281 KB
Application Notes
DescriptionVersionSize
AN4440: RFFE HVDAC control1.01 MB
Technical Notes & Articles
DescriptionVersionSize
TN1173: Packing information for IPAD™, protection, rectifiers, thyristors and AC Switches4.0330 KB
Sample & Buy
Part NumberPackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)Unit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
STHVDAC-303F6WLCSP 36Tape And Reel--0.96610NECEAR99CHINA
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
STHVDAC-303F6WLCSP 36IndustrialEcopack2md_bd-wspc-wlcsp0.5-wspc-rdl-wspc-4-wspc-36_kbbd-wspc-hvdac5b.pdf
md_bd-wspc-wlcsp0.xml
High voltage BST capacitance controller STHVDAC-303
RFFE HVDAC control STHVDAC-256MTG
Packing information for IPAD™, protection, rectifiers, thyristors and AC Switches FLC21
md_bd-wspc-wlcsp0.5-wspc-rdl-wspc-4-wspc-36_kbbd-wspc-hvdac5b.pdf STHVDAC-303
md_bd-wspc-wlcsp0.xml STHVDAC-303