PE43502 Datasheet, PDF (1/11 Pages) Peregrine Semiconductor – RF Digital Attenuator

Product Description
The PE43502 is a HaRP™-enhanced, high linearity, 5-bit RF
Digital Step Attenuator (DSA). This highly versatile DSA
covers a 15.5 dB attenuation range in 0.5 dB steps. The
Peregrine 50Ω RF DSA provides multiple CMOS control
interfaces. It maintains high attenuation accuracy over
frequency and temperature and exhibits very low insertion loss
and low power consumption. Performance does not change
with V_DD due to on-board regulator. This next generation
Peregrine DSA is available in a 4x4 mm 24-lead QFN footprint.
The PE43502 is manufactured on Peregrine’s UltraCMOS™
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.
Figure 1. Package Photo
24-lead 4x4x0.85 mm QFN Package
Product Specification
PE43502
50 Ω RF Digital Attenuator
5-bit, 15.5 dB, 9 kHz - 6 GHz
Features
• HaRP™-enhanced UltraCMOS™ device
• Attenuation: 0.5 dB steps to 15.5-dB
• High Linearity: Typical +58 dBm IP3
• Excellent low-frequency performance
• 3.3 V or 5.0 V Power Supply Voltage
• Fast switch settling time
• Programming Modes:
• Direct Parallel
• Latched Parallel
• Serial
• High-attenuation state @ power-up (PUP)
• CMOS Compatible
• No DC blocking capacitors required
• Packaged in a 24-lead 4x4x0.85 mm QFN
Figure 2. Functional Schematic Diagram
RF Input
Switched Attenuator Array
Parallel Control 5
Serial In
CLK
LE
Control Logic Interface
P/S
Document No. 70-0247-06 │ www.psemi.com
RF Output
©2008-2009 Peregrine Semiconductor Corp. All rights reserved.
Page 1 of 11