SP43602 Datasheet, PDF (1/10 Pages) SIPAT Co,Ltd – 50 Ω RF Digital Attenuator

Product Description
The SP43602 is a Silicon-on-Sapphire (SOS) enhanced, high
linearity, 6-bit RF Digital Step Attenuator (DSA) covering a 31.5 dB
attenuation range in 0.5 dB steps. This SIPAT 50Ω RF DSA provides
both a serial and parallel 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 V_DD due to on-board regulator. This next
generation DSA is available in a 4x4 mm 24 lead QFN footprint.
The SP43602 is manufactured on the Silicon-on-Sapphire 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
SP43602
50 Ω RF Digital Attenuator
6-bit, 31.5 dB, 9 kHz - 5.0 GHz
Features
 Silicon-on-Sapphire enhanced Silicon-on-
Sapphire device
 Attenuation: 0.5 dB steps to 31.5-dB
 High Linearity: Typical +58 dBm IIP3
 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
Parallel Control 7
Serial In
CLK
LE
Control Logic Interface
P/S
RF Output
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