PE4312MLBA-Z Datasheet, PDF (1/13 Pages) Peregrine Semiconductor – UltraCMOS® RF Digital Step Attenuator 6-bit, 31.5 dB, 1 MHz–4 GHz

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 selection
 Pin compatible to PE4302, PE4305
and PE4306
Figure 2. Package Type
20-lead 4 × 4 mm QFN
Document No. DOC-81482-1 │ www.psemi.com
©2017 Peregrine Semiconductor Corp. All rights reserved.
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