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PE4312

Peregrine Semiconductor
Part Number PE4312
Manufacturer Peregrine Semiconductor
Description RF Digital Step Attenuator
Published Oct 5, 2016
Detailed Description Product Description The PE4312 is a 50Ω, HaRP™ technology-enhanced 6-bit RF Digital Step Attenuator (DSA) designed for u...
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PE4312
PE4312

Overview
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.
Figure 1.
Functional Schematic Diagram Switched Attenuator Array RF Input RF Output Parallel Control 6 Serial Control 3 Power-Up Control 2 Control Logic Interface DOC-02132 Product Specification PE4312 UltraCMOS® RF Digital Step Attenuator 6-bit, 31.
5 dB, 1 MHz–4 GHz 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 selecti...


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