PE43503

Product Description The PE43503 is a HaRP™-enhanced, high linearity, 5-bit RF Digital Step Attenuator (DSA) covering a 31 dB attenuation range in 1 dB steps. The Peregrine 50Ω RF DSA provides a serial 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 4x4 mm 24-lead QFN footprint. The PE43503 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 Type 24-lead 4x4x0.85 mm QFN Package Product Specification PE43503 50 Ω RF Digital Attenuator 5-bit, 31 dB, 9 kHz - 6.0 GHz Features HaRP™-enhanced UltraCMOS™ device Attenuation: 1 dB steps to 31 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 Switched Attenuator Array RF Input RF Output Parallel Control 5 Serial In CLK LE Control Logic Interface A0 A1 Document No. 70-0252-05 │ www.pse...