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PE43503_15

Description
RF Digital Attenuator
File Size431KB,11 Pages
ManufacturerpSemi (peregrine semiconductor)
Websitehttp://www.psemi.com/
Download Datasheet View All

PE43503_15 Overview

RF Digital Attenuator

Product Specification
PE43503
Product Description
The PE43503 is a HaRP™-enhanced, high linearity, 5-bit RF
Digital Step Attenuator (DSA) covering a 31 dB attenuation
range in 1 dB steps. The Peregrine 50Ω RF DSA provides a
serial CMOS control interface. It maintains high attenuation
accuracy over frequency and temperature and exhibits very low
insertion loss and low power consumption. Performance does
not change with Vdd due to on-board regulator. This next
generation Peregrine DSA is available in a 4x4 mm 24-lead
QFN footprint.
The PE43503 is manufactured on Peregrine’s UltraCMOS™
process, a patented variation of silicon-on-insulator (SOI)
technology on a sapphire substrate, offering the performance
of GaAs with the economy and integration of conventional
CMOS.
50
RF Digital Attenuator
5-bit, 31 dB, 9 kHz - 6.0 GHz
Features
HaRP™-enhanced UltraCMOS™ device
Attenuation: 1 dB steps to 31 dB
High Linearity: Typical +58 dBm IP3
Excellent low-frequency performance
3.3 V or 5.0 V Power Supply Voltage
Fast switch settling time
Programming Modes:
Direct Parallel
Latched Parallel
Serial
High-attenuation state @ power-up (PUP)
CMOS Compatible
Figure 1. Package Type
24-lead 4x4x0.85 mm QFN Package
No DC blocking capacitors required
Packaged in a 24-lead 4x4x0.85 mm QFN
Figure 2. Functional Schematic Diagram
Switched Attenuator Array
RF Input
RF Output
Parallel Control
Serial In
5
Control Logic Interface
CLK
LE
A0
A1
A2
P/S
©2008-2009 Peregrine Semiconductor Corp. All rights reserved.
Page 1 of 11
Document No. 70-0252-05
www.psemi.com
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