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PE4312C-Z Datasheet(PDF) 1 Page - Peregrine Semiconductor |
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PE4312C-Z Datasheet(HTML) 1 Page - Peregrine Semiconductor |
1 / 13 page Page 1 of 13 Document No. DOC-81482-1 │ www.psemi.com ©2017 Peregrine Semiconductor Corp. All rights reserved. Product Description The PE4312 is a 50Ω, HaRP™ technology-enhanced 6-bit RF Digital Step Attenuator (DSA) designed for use in 3G/4G wireless infrastructure and other high performance RF applications. This DSA is a pin-compatible upgraded version of the PE4302 with higher linearity, improved attenuation accuracy and faster switching speed. An integrated digital control interface supports both serial and parallel programming of the attenuation, including the capability to program an initial attenuation state at power-up. Covering a 31.5 dB attenuation range in 0.5 dB steps, it maintains high linearity and low power consumption from 1 MHz through 4 GHz. PE4312 also features an external negative supply option, and is offered in a 20-lead 4 × 4 mm QFN package. In addition, no external blocking capacitors are required if 0 VDC is present on the RF ports. The PE4312 is manufactured on Peregrine’s UltraCMOS® process, a patented variation of silicon-on-insulator (SOI) technology on a sapphire substrate. Peregrine’s HaRP™ technology enhancements deliver high linearity and excellent harmonics performance. It is an innovative feature of the UltraCMOS® process, offering the performance of GaAs with the economy and integration of conventional CMOS. Product Specification UltraCMOS® RF Digital Step Attenuator 6-bit, 31.5 dB, 1 MHz–4 GHz Figure 1. Functional Schematic Diagram PE4312 Features Attenuation: 0.5 dB steps to 31.5 dB Safe attenuation state transitions Monotonicity: 0.5 dB up to 4 GHz High attenuation accuracy ±(0.10 + 1% x Atten) @ 1 GHz ±(0.15 + 2% x Atten) @ 2.2 GHz ±(0.15 + 8% x Atten) @ 4 GHz High linearity: +59 dBm IIP3 Wide power supply range of 2.3–5.5V 1.8V control logic compatible 105 °C operating temperature Programming modes Direct parallel Latched parallel Serial Unique power-up state selection Pin compatible to PE4302, PE4305 and PE4306 Control Logic Interface Parallel Control Power-Up Control Serial Control RF Input RF Output Switched Attenuator Array 6 3 2 Figure 2. Package Type 20-lead 4 × 4 mm QFN DOC-02132 |
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