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Product Specification
PE64905
UltraCMOS ? Digitally Tunable Capacitor
?? 2-wire (I C compatible) Serial Interface
?? DuNE?-enhanced UltraCMOS device
Product Description
The PE64905 is a DuNE?-enhanced Digitally Tunable
Capacitor (DTC) based on Peregrine’s UltraCMOS ?
technology. DTC products provide a monolithically
integrated impedance tuning solution for demanding RF
applications.
The PE64905 offers high RF power handling and
ruggedness, while meeting challenging harmonic and
linearity requirements.
This highly versatile product can be used in series or shunt
configurations to support a wide variety of tuning circuit
topologies.
The device is controlled through the widely supported 2-wire
(I 2 C compatible) interface and has two selectable addresses
for implementations with multiple DTCs. All decoding and
biasing is integrated on-chip, and no external bypassing, or
filtering components are required.
Peregrine’s DuNE? technology enables excellent linearity
and exceptional harmonic performance. DuNE devices
deliver performance superior to GaAs devices with the
economy and integration of conventional CMOS.
Figure 1. Functional Block Diagram
(DTC) 100 - 3000 MHz
Features
2
with built-in bias voltage generation and
ESD protection
?
?? 5-bit 32-state Digitally Tunable Capacitor
?? Series configuration C = 0.60 - 4.60 pF
(7.7:1 tuning ratio) in discrete 129 fF steps
?? Shunt configuration C = 1.10 - 5.10 pF
(4.6:1 tuning ratio) in discrete 129 fF steps
?? High RF Power Handling (up to 38 dBm,
30 V pk RF) and High Linearity
?? Wide power supply range (2.3 to 3.6V)
and low current consumption
(typ. 140 μ A at 2.6V)
?? Excellent 1.5 kV HBM ESD tolerance on
all pins
?? 2 x 2 x 0.45 mm QFN package
?? Applications include:
?? Tunable Filter Networks
?? Tunable Antennas
?? RFID
?? Tunable Matching Networks
?? Phase Shifters
?? Wireless Communications
Figure 2. Package Type
RF+
Serial
Interface
ESD
CMOS Control
Driver and ESD
ESD
71-0066-01
RF-
10L 2 x 2 x 0.45 mm QFN package
Document No. 70-0335-06 │ www.psemi.com
?2011-2012 Peregrine Semiconductor Corp. All rights reserved.
Page 1 of 11
Logo updated under non-rev change. Peregrine products are protected under one or more of the following U.S. Patents: http://patents.psemi.com
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