Wide band Digital Step Attenuator ZX76-31R75PP-S+ 50 0 to 31.75 dB, 0.25 dB Step 9 kHz to 6.0 GHz 7 Bit, Parallel control interface, Single Supply Voltage The Big Deal Wideband, operates up to 6 GHz Immune to latchup Generic photo used for illustration purposes only High IP3, 53 dBm CASE STYLE: HK1172 Control inputs buffered by Schmitt Triggers Product Overview The ZX76-31R75PP-S+ is a 50 digital step attenuator model which provides adjustable attenuation from 0 to 31.75 dB in 0.25 dB steps. The control is a 7-bit parallel interface, with a single positive supply voltage. Control lines are buffered by Schmitt Triggers to allow a wide range of control voltage levels. The model is produced using a unique unibody case package for ruggedness and operation in tough environments. Key Features Feature Advantages Wideband operation, specified from 9 Can be used in multiple applications such as communications, satellite and defense, kHz to 6.0 GHz reducing part count. Parallel control interface with wide Uses a simple parallel control interface with no clock required and can accept control voltage range commands with 1 from 1.17V to 5V making it suitable for a wide range of applications. Good VSWR, 1.45:1 typ. Eases interfacing with adjacent components and results in low amplitude ripple. The ZX76-31R75PP-S+ employs novel architecture to reduce the RF output power spikes during attenuation transition to 0.3 dB Typ thus reducing noise in the system Glitch-less attenuation transitions and eliminating the risk of a transient spike damaging sensitive components in the system. Use of single positive supply simplifies power supply design. An internal negative voltage Single positive supply generator supplies the desired negative voltage. Single positive supply results in excellent spurious performance, -110 dBm typical. Model suitable for both 5V and 3.3V systems applications with no voltage dividers or Power Supply 3.0 to 5.5 V multipliers needed. Mini-Circuits www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales minicircuits.com Page 1 of 7Digital Step Attenuator 50 0.009-6000 MHz 31.75 dB, 0.25 dB Step 7 Bit, Parallel control interface, Single Supply Voltage Product Features Low Insertion Loss High IP3, +53 dBm Typ Very good return loss, 15 dB Typ Excellent accuracy, 0.1 dB Typ Glitch-less attenuation transitions Generic photo used for illustration purposes only Single Supply Voltage: Vdd =+3.3V or 5V CASE STYLE: HK1172 Control inputs buffered by Schmitt Triggers Rigid unibody case Protected by US patent 6,790,049 ZX76-31R75PP-S+ Connectors Order P/N SMA ZX76-31R75PP-S+ Typical Applications Lab +RoHS Compliant The +Suffix identifies RoHS Compliance. See our web site Instrumentation for RoHS Compliance methodologies and qualifications Test equipment General Description The ZX76-31R75PP-S+ is a 50 digital step attenuator provides adjustable attenuation of 0 to 31.75 dB in 0.25 dB steps. The control is a 7-bit parallel interface, and the attenuators operate on a single (positive) supply voltage of 3.0V to 5.5V. The ZX76-31R75PP-S+ is produced using a unique case package for rug- gedness and operation in tough environments. Simplified Schematic RF Input RF Out 16 8 4 2 1 0.5 0.25 dB dB dB dB dB dB dB Parallel Control Internal Control Logic Interface Latch Enable REV. E ECO-009940 EDR-11384 ZX76-31R75PP-S+ Mini-Circuits RAV 210930 www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales minicircuits.com Page 2 of 7