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PE4312

UltraCMOS® RF Digital Step Attenuator

RF Attenuator, Digital, .001- 4 GHz, 31.5dB, 6-Bit 0.5dB Steps, Bi-directional

Status: Standard | Data Sheet:

| RoHS Compliance: Rohs Compliant

Key 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 •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 and serial •Unique power-up state selection •Pin-compatible to PE4302, PE4305 and PE4306 •Package—20-lead 4×4 mm QFN

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.

Part Number: PE4312
Manufacturer: pSemi
Type: 50
Frequency Min: 1 MHz
Frequency Max: 4000 MHz
Bits: 6
Attn Range: 31.5 dB
Attenuation Step: 0.5 dB
Insertion Loss Min: 1.3 dB
Insertion Loss Max: 2.1 dB
IIP3: 59 dBm
Package: 4x4

	Datasheet
	Material Declaration
	RoHS Compliance Certificate
	REACH Compliance Certificate
	S-Parameters
	Schematic/B.O.M.
	Software
	IPC-1752-2 Class 6 Form
	Application Note: Design Considerations for Connecting Multi
	Application Note: Programming Multiple Devices Using a Singl
	Application Note: Replacing PE4302 with PE4312
	Application Note: Soldering Guidelines for Mounting Bottom-t
	Application Note: Thermal Characterization

Part Function	Part Number	Description
Evaluation Board	EK4312-13 pSemi	Evaluation Kit for PE4312
Complementary Product	PE4302 pSemi	RF Attenuator, Digital, 0- 4 GHz, 31.5dB, 6-Bit 0.5dB Steps

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Product Specifications For PE4312 RF Attenuator

Part Number: PE4312 Manufacturer: pSemi Product Description: RF Attenuator, Digital, .001- 4 GHz, 31.5dB, 6-Bit 0.5dB Steps, Bi-directional

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Availability

In Stock

11665

On Order

9000

by 9/15/2025

8000

by 9/22/2025

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PE4312

UltraCMOS® RF Digital Step Attenuator

RF Attenuator, Digital, .001- 4 GHz, 31.5dB, 6-Bit 0.5dB Steps, Bi-directional

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PE4312

UltraCMOS® RF Digital Step Attenuator

RF Attenuator, Digital, .001- 4 GHz, 31.5dB, 6-Bit 0.5dB Steps, Bi-directional

Technical Inquiry Request for PE4312 RF Attenuator

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