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Product Specification
PE43601
50 ? RF Digital Attenuator
Product Description
The PE43601 is a HaRP ? -enhanced, high linearity, 6-bit RF
Digital Step Attenuator (DSA). This highly versatile DSA
covers a 15.75 dB attenuation range in 0.25 dB steps. The
Peregrine 50 ? RF DSA provides a serial-addressable 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 V DD due to on-board regulator. This next generation
Peregrine DSA is available in a 5x5 mm 32-lead QFN footprint.
6-bit, 15.75 dB, 9 kHz - 6.0 GHz
Features
? HaRP?-enhanced UltraCMOS? device
? Attenuation: 0.25 dB steps to 15.75 dB
? High Linearity: Typical +58 dBm IIP3
? Excellent low-frequency performance
? 3.3 V or 5.0 V Power Supply Voltage
? Fast switch settling time
? Programming Modes:
The PE43601 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.
?
?
?
?
Direct Parallel
Latched Parallel
Serial-Addressable: Program up to
eight addresses 000 - 111
Serial Two-Byte Protocol: Address and
Data Word
Figure 1. Package Type
32-lead 5x5x0.85 mm QFN Package
? High-attenuation state @ power-up (PUP)
? CMOS Compatible
? No DC blocking capacitors required
? Packaged in a 32-lead 5x5x0.85 mm QFN
Figure 2. Functional Schematic Diagram
Switched Attenuator Array
RF Input
Parallel Control
6
RF Output
Serial In
Control Logic Interface
CLK
LE
A0
A1
A2
P/S
Document No. 70-0253-05 │ www.psemi.com
?2008-2009 Peregrine Semiconductor Corp. All rights reserved.
Page 1 of 13
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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