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Peregrine Semiconductor - RF Digital Step Attenuator

Numéro de référence PE43712
Description RF Digital Step Attenuator
Fabricant Peregrine Semiconductor 
Logo Peregrine Semiconductor 





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PE43712 fiche technique
PE43712
Product Specification
UltraCMOS® RF Digital Step Attenuator, 9 kHz–6 GHz
Features
• Flexible attenuation steps of 0.25 dB, 0.5 dB and
1 dB up to 31.75 dB
• Glitch-less attenuation state transitions
• Monotonicity: 0.25 dB up to 4 GHz, 0.5 dB up to
5 GHz and 1 dB up to 6 GHz
• Extended +105 °C operating temperature
• Parallel and Serial programming interfaces with
Serial Addressability
• Packaging—32-lead 5 × 5 mm QFN
Applications
• 3G/4G wireless infrastructure
• Land mobile radio (LMR) system
• Point-to-point communication system
Figure 1 • PE43712 Functional Diagram
Switched Attenuator Array
RF
Input
Parallel
Control
×7
Serial In
CLK
Control Logic Interface
LE
RF
Output
A0 A1 A2
P/S
Product Description
The PE43712 is a 50, HaRP™ technology-enhanced,7-bit RF digital step attenuator (DSA) that supports a
broad frequency range from 9 kHz to 6 GHz. It features glitch-less attenuation state transitions and supports
1.8V control voltage and an extended operating temperature range to +105 °C, making this device ideal for
many broadband wireless applications.
The PE43712 is a pin-compatible upgraded version of the PE43601 and PE43701. An integrated digital control
interface supports both Serial Addressable and Parallel programming of the attenuation, including the capability
to program an initial attenuation state at power-up.
The PE43712 covers a 31.75 dB attenuation range in 0.25 dB, 0.5 dB and 1 dB steps. It is capable of
maintaining 0.25 dB monotonicity through 4GHz, 0.5 dB monotonicity through 5 GHz and 1 dB monotonicity
through 6 GHz. In addition, no external blocking capacitors are required if 0 VDC is present on the RF ports.
The PE43712 is manufactured on Peregrine’s UltraCMOS® process, a patented variation of silicon-on-insulator
(SOI) technology on a sapphire substrate.
©2015, Peregrine Semiconductor Corporation. All rights reserved. • Headquarters: 9380 Carroll Park Drive, San Diego, CA, 92121
Product Specification
www.psemi.com
DOC-49514-1 – (3/2015)

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