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Product Specification

RF DSAs PE4302 - 34407 PE4302

50 RF Digital Attenuator 6-bit, 31.5 dB, DC – 4.0 GHz

Product Description

The PE4302 is a high linearity, 6-bit RF Digital Step Attenuator (DSA) covering a 31.5 dB attenuation range in 0.5 dB steps. This 50-ohm RF DSA provides both parallel and serial CMOS control interface operates on a single 3-volt supply and maintains high attenuation accuracy over frequency and temperature. It also has a unique control interface that allows the user to select an initial attenuation state at power-up. The PE4302 exhibits very low insertion loss and low power consumption. This functionality is delivered in a 4x4 mm QFN footprint. The PE4302 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. Features Attenuation: 0.5 dB steps to 31.5 dB Flexible parallel and serial programming interfaces Unique power-up state selection Positive CMOS control logic High attenuation accuracy and linearity over temperature and frequency Very low power consumption Single-supply operation 50 impedance Packaged in a 20 lead 4x4mm QFN Figure 1. Functional Schematic Diagram Figure 2. Package Type
4x4 mm 20-Lead QFN Switched Attenuator Array Parallel ControlPower-Up ControlSerial ControlRF InputRF Output 632 Control Logic Interface Table 1. Electrical Specifications @ +25°C, V
DD = 3.0 V
Parameter Test Conditions Frequency Minimum Typical Maximum Units Operation Frequency DC 4000 MHz Insertion Loss 2 DC - 2.2 GHz - 1.5 1.75 dB Attenuation Accuracy Any Bit or Bit CombinationDC 1.0 GHz 1.0 < 2.2 GHz - - ±(0.10 + 3% of atten setting) ±(0.15 + 5% of atten setting) dBdB1 dB Compression 3 1 MHz - 2.2 GHz 30 34 - dBm Input IP3 1,2 Two-tone inputs +18 dBm 1 MHz - 2.2 GHz - 52 - dBm Return Loss DC - 2.2 GHz 15 20 - dBSwitching Speed 50% control to 0.5 dB of final value -- 1 s Notes: 1. Device Linearity will begin to degrade below 1 Mhz 2. See Max input rating in Table 3 & Figures on Pages 2 to 4 for data across frequency. 3. Note Absolute Maximum in Table 3. Document No. 70-0056-04 www.psemi.com ©2003-2008 Peregrine Semiconductor Corp. All rights reserved. Page 1 of 11