STHVDAC-253MTG Datasheet, PDF (1/28 Pages) STMicroelectronics – Antenna tuning circuit with turbo and glide

STHVDAC-253MTG
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 3
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-253MTG 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 3 independent high voltage outputs,
thus having the capability to control 3 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 (top view)
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November 2015
This is information on a product in full production.
DocID027917 Rev 4
1/28
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