PE43701 Datasheet | pSemi

Description .. 50 Ω RF Digital Attenuator 7-bit, 31.75 d B, DC-4.0 GHz Features - Ha RP™-enhanced Ultra CMOS™ device - Attenuation: 0.25 d B steps to 31.75 d B - High Linearity: Typical +59 d Bm IIP3 The PE43701 is a Ha RP™-enhanced, high linearity, 7-bit RF Digital Step Attenuator (DSA). This highly versatile DSA covers a 31.75 d B attenuation range in 0.25 d B steps. The Peregrine 50Ω RF DSA provides a parallel or serialaddressable CMOS control interface. It maintains high attenuation accuracy over frequency and temperature and exhibits very low insertion loss and low power consumption. Performance does not change with Vdd due to on-board regulator. This next generation Peregrine DSA is available in a 5x5 mm 32-lead QFN footprint. The PE43701 is manufactured on Peregrine’s Ultra CMOS™ process, a patented variation of silicon-on-insulator (SOI) technology on a sapphire substrate, offering the performance of Ga As with the economy and integration of conventional CMOS. Figure 1. Package Type 32-lead 5x5x0.85 mm QFN Package 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-Addressable: Program up to eight addresses 000 - 111 - High-attenuation state @ power-up (PUP) - - - CMOS patible - No DC blocking capacitors required - Packaged in a 32-lead 5x5x0.85 mm QFN Figure 2. Functional Schematic Diagram Switched Attenuator Array RF Input RF Output Parallel Control Serial In Control Logic Interface CLK LE A0 A1 A2 P/S Document No. 70-0243-04 │ .psemi. ©2008-2009 Peregrine Semiconductor Corp. All rights reserved. Page 1 of 13 Product Specification Table 1. Electrical Specifications @ +25°C, VDD = 3.3 V or 5.0 V Parameter Frequency Range Attenuation Range .. Insertion Loss Attenuation Error Return Loss Relative Phase P1d B IIP3 Typical Spurious Value Video Feed Through Switching Time RF Trise/Tfall Settling Time 50% DC CTRL to 10% / 90% RF 10%...