PE43501 RF Digital Attenuator

PE43501 RF Digital Attenuator

The PE43501 is a HaRP™-enhanced, high linearity, 5-bit RF Digital Step Attenuator (DSA). This highly versatile DSA covers a 7.75 dB attenuation range in 0.25 dB steps. The Peregrine 50Ω RF DSA provides a serial-addressable CMOS control interface. It maintains high attenuation accuracy over frequency.

Features

• HaRP™-enhanced UltraCMOS™ device
• Attenuation: 0.25 dB steps to 7.75 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-Addressable: Program up to eight addresses 000 - 111
• High-attenuation state @ power-up (PUP)
• CMOS Compatible
• No DC blocking capacitors required
• Packaged in a 32-lead 5x5x0.85 mm QFN Obsolete Figure 2. Functional Schematic Diagram RF Input Switched Attenuator Array RF Output Parallel Control 5 Serial I.