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Peregrine Semiconductor

PE64908 Datasheet Preview

PE64908 Datasheet

UltraCMOS Digitally Tunable Capacitor

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Product Description
PE64908 is a DuNE™ technology-enhanced Digitally
Tunable Capacitor (DTC) based on Peregrine’s UltraCMOS®
technology.This highly versatile product supports a wide
variety of tuning circuit topologies with emphasis on
impedance matching and aperture tuning applications.
PE64908 offers high RF power handling and ruggedness
while meeting challenging harmonic and linearity
requirements enabled by Peregrine’s HaRP™ technology.
The device is controlled through the widely supported 3-wire
(SPI compatible) interface. All decoding and biasing is
integrated on-chip and no external bypassing or filtering
components are required.
DuNE™ devices feature ease of use while delivering
superior RF performance in the form of tuning accuracy,
monotonicity, tuning ratio, power handling, size, and quality
factor. With built-in bias voltage generation and ESD
protection, DTC products provide a monolithically integrated
tuning solution for demanding RF applications.
Product Specification
PE64908
UltraCMOS® Digitally Tunable Capacitor
(DTC) 100-3000 MHz
Features
3-wire (SPI compatible) serial interface
with built-in bias voltage generation and
ESD protection
DuNE™ technology enhanced
5-bit 32-state Digitally Tunable Capacitor
Shunt configuration C = 2.15 pF to 7.7 pF
(3.6:1 tuning ratio) in discrete 180 fF
steps
High RF power handling (30 Vpk RF) and
linearity
Wide power supply range (2.3 to 4.8V) for
and low current consumption
(typ. 140 μA at 2.75V)
High ESD tolerance of 2kV HBM on all
pins
Applications include:
Tunable antennas
Tunable matching networks
Tunable filter networks
Phase shifters
Figure 1. Functional Diagram
Figure 2. Package Type
10-lead 2 x 2 x 0.55 mm QFN
RF+
ESD
RF-
ESD
Serial
Interface
CMOS Control
Driver and ESD
DOC-02169
Document No. DOC-30314-2 www.psemi.com
©2013 Peregrine Semiconductor Corp. All rights reserved.
Logo updated under non-rev change. Peregrine products are protected under one or more of the following U.S. Patents: http://patents.psemi.com
Page 1 of 10




Peregrine Semiconductor

PE64908 Datasheet Preview

PE64908 Datasheet

UltraCMOS Digitally Tunable Capacitor

No Preview Available !

PE64908
Product Specification
Table 1. Electrical Specifications @ 25°C, VDD = 2.75V (In shunt configuration, RF- connected to GND)
Parameter
Condition
Min Typ Max Unit
Operating frequency
100 3000 MHz
Minimum capacitance
(Cmin)
Maximum capacitance
(Cmax)
Tuning ratio
Step size
State 00000, 100 MHz
State 11111, 100 MHz
Cmax/Cmin, 100 MHz
5 bits (32 states), 100 MHz
1.93 2.15 2.37 pF
6.93
7.70
3.6:1
0.180
8.47
pF
pF
Quality factor at Cmin1
Quality factor at Cmax1
Self resonant frequency5
698 - 960 MHz, with LS removed
1710 - 2170 MHz, with LS removed
698 - 960 MHz, with LS removed
1710 - 2170 MHz, with LS removed
State 00000
State 11111
41
24
15
6
3.9
2.1
GHz
Harmonics2
IMD3
2fo, 3fo: 698 - 915 MHz; PIN +34 dBm, 50Ω
2fo, 3fo: 1710 - 1910 MHz; PIN +32 dBm, 50Ω
Bands I,II,V/VIII, +20 dBm CW @ TX freq,
-15 dBm CW @ 2Tx-Rx freq, 50 Ω
-36
-36
-105
dBm
dBm
dBm
Third order intercept point
(IP3)
Switching time3,4
Start-up time3
Wake-up time3,4
Shunt configuration derived from IMD3 spec
IP3 = (2PTX + Pblock - IMD3) / 2
State change to 10/90% delta capacitance between any two states
Time from VDD within specification to all performances within specification
State change from Standby mode to RF state to all performances within specification
65 dBm
12 µs
70 µs
70 µs
Notes: 1. Q for a Shunt DTC based on a Series RLC equivalent circuit
Q = XC / R = (X - XL) / R, where X = XL + XC , XL = 2*pi*f*L, XC = -1 / (2*pi*f*C), which is equal to removing the effect of parasitic inductance LS
2. In Shunt between 50Ω ports. Pulsed RF input with 4620 µS period, 50% duty cycle, measured per 3GPP TS 45.005
3. DC path to ground at RFmust be provided to achieve specified performance
4. State change activated on falling edge of SEN following data word
5. DTC operation above SRF is possible
©2013 Peregrine Semiconductor Corp. All rights reserved.
Document No. DOC-30314-2 UltraCMOS® RFIC Solutions
Page 2 of 10
Logo updated under non-rev change. Peregrine products are protected under one or more of the following U.S. Patents: http://patents.psemi.com


Part Number PE64908
Description UltraCMOS Digitally Tunable Capacitor
Maker Peregrine Semiconductor
Total Page 10 Pages
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