STHVDAC-256MTG Datasheet, PDF (1/27 Pages) STMicroelectronics – Antenna tuning circuit with turbo and glide

STHVDAC-256MTG
Antenna tuning circuit with turbo and glide
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Features
• Dedicated controller to bias BST tunable
capacitors
• Operation compliant with cellular systems
requirements
• Turbo and glide modes for optimal system
performance
• Integrated boost converter with 6
programmable outputs (from 0 to 24 V)
• Low power consumption
• MIPI RFFE serial interface 1,8 V
• Available in WLCSP for stand-alone or SiP
module integration
Applications
• Cellular antenna tunable matching network in
multi-band GSM/WCDMA/LTE handsets
• Compatible for open loop antenna tuner
application
Benefits
RF tunable passive implementation in mobile
phones to optimize the radiated performance.
Datasheet - production data
Description
The ST high voltage BST capacitor controller
STHVDAC-256MTG 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 capacitors.
It provides 6 independent high voltage outputs,
thus having the capability to control 6 different
capacitors. It is fully controlled through an RFFE
serial interface.
BST capacitors are tunable capacitors intended
for use in mobile phone application and dedicated
to RF tunable application. These tunable
capacitors are controlled through a bias voltage
ranging from 0 to 24 V. The implementation of
BST tunable capacitor in mobile phones enables
significant improvement in term of radiated
performance, making the performance almost
insensitive to external environment.
Figure 1. Pin configuration




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November 2015
This is information on a product in full production.
DocID028369 Rev 1
1/27
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