Document No. 70-0161-05 │ www.psemi.com

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©2003-2013Peregrine Semiconductor Corp. All rights reserved.

The PE4307 is a high linearity, 5-bit RF Digital Step

Attenuator (DSA) covering a 15.5 dB attenuation range in

0.5 dB steps. The device is pin compatible with the PE430x

series. This 75-ohm RF DSA provides both parallel (latched

or direct mode) 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 PE4307 exhibits

very low insertion loss and low power consumption. This

functionality is delivered in a 4x4 mm QFN footprint.

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.

Product Specification

75Ω RF Digital Attenuator

5-bit, 15.5 dB, 1 – 2000 MHz

Product Description

Figure 1. Functional Schematic Diagram

PE4307

Features



Attenuation: 0.5 dB steps to 15.5 dB



Flexible parallel and serial programming

interfaces



Latched or direct mode



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



75Ω impedance



Pin compatible with PE430x series



Packaged in a 20-lead 4x4 mm QFN

Notes: 1. Device Linearity will begin to degrade below 1 MHz

2. Max input rating in Table 3 & Figures on Pages 4 to 6 for data across frequency

3. Note Absolute Maximum in Table 3

4. Measured in a 50Ω system

Control Logic Interface

Parallel Control

Power-Up Control

Serial Control

RF Input

RF Output

Switched Attenuator Array

5

3

1

Parameter

Test Condition

Frequency

Minimum

Typical

Maximum

Unit

Operation Frequency

1

2000

MHz

1 MHz ≤1.2 GHz

-

1.4

1.95

dB

Attenuation Accuracy

Any Bit or Bit

Combination

1 MHz ≤1.2 GHz

-

-

±(0.15 + 4% of atten setting)

Not to exceed +0.25 dB

dB

dB

1 MHz ≤1.2 GHz

30

34

-

dBm

Two-tone inputs up to

+18 dBm

1 MHz ≤1.2 GHz

-

52

-

dBm

Return Loss

Zo = 75 ohms

1 MHz ≤1.2 GHz

10

13

-

dB

Switching Speed

50% control to 0.5 dB

of final value

-

-

1

s

Figure 2. Package Type

20-lead 4x4 mm QFN

71-0007