This is information on a product in full production.

February 2015

DocID023772 Rev 4

1/13

STPTIC

Parascan™ tunable integrated capacitor

Datasheet

Features

• High power capability (+36 dBm)

• High tuning range (3.5/1)

• High quality factor (Q)

• High linearity device

• Low leakage current

• Capacitor bias is DC blocked

• Frequency of operation from DC to 3 GHz

• 8 values available: 1.2 pF, 2.7 pF, 3.3 pF,

3.9 pF, 4.7 pF, 5.6 pF, 6.8 pF and 8.2 pF

• Analog control voltage

• Compatible with high voltage control IC

(STHVDAC series)

• Available in plastic molded package:

– µQFN package 1.2 x 1.6 x 0.9 mm

– Flip Chip 0.65 x 1.0 x 0.3 mm

– Flip Chip 0.65 x 1.2 x 0.3 mm

Benefit

• RF tunable passive implementation in mobile

phones to optimize antenna radiated

performances.

Applications

• Cellular Antenna open loop tunable matching

network in multi-band GSM/WCDMA/LTE

mobile phone

• Open loop tunable RF filters

Description

The ST integrated tunable capacitor, offers

excellent RF performance, low power

consumption and high linearity required in

adaptive RF tuning applications. The fundamental

building block of PTIC is a tunable material called

Parascan, which is a version of barium strontium

titanate (BST) developed by Paratek microwave.

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 2 to 20 V. The use of

BST tunable capacitance in mobile phones

enables significant improvement in terms of

radiated performances making the performance

almost insensitive to the external environment.

TM: Parascan is a trade mark of Paratek microwave Inc.

µQFN

Flip Chip

www.st.com