Wide band Digital Step Attenuator ZX76-31A+ Series 50 0 to 31 dB, 1 dB Step DC to 4.0 GHz The Big Deal Wideband, operates up to 4 GHz Immune to latchup Generic photo used for illustration purposes only High IP3, 52 dBm CASE STYLE: HK1172 Control inputs buffered by Schmitt Triggers Product Overview The ZX76-31A+ series of 50 digital step attenuators adjustable attenuation from 0 to 31 dB in 1 dB steps. The control is a 5-bit serial/parallel interface, and the attenuators operate with either single positive or dual (positive and negative) supply voltage. Control lines are buffered by Schmitt Triggers to allow a wide range of control voltage levels. The ZX76-31A+ series is produced using a unique unibody case package for ruggedness and operation in tough environments. Key Features Feature Advantages Wideband operation, specified from DC Can be used in multiple applications such as communications, satellite and defense, to 4.0 GHz reducing part count. Serial interface (Model suffixes: -SN+ and SP+) Models available with serial or parallel interface mode to suit customer demand. or parallel interface (Model suffixes: -PN+ and PP+) Good VSWR, 1.3:1 typ. Eases interfacing with adjacent components and results in low amplitude ripple. Single positive supply models: Use of single positive supply simplifies power supply design. An internal negative voltage (Model suffixes: -SPS+ and PPS+) generator supplies the desired negative voltage. Single positive supply results in excellent +2.3 to +3.6 V spurious performance, -140 dBm typical. Dual supply models: (Model suffixes: -SNS+ and PNS+) Dual supply provides spurious-free operation. It also allows fast switching up to 1 MHz (vs. +2.7 to +3.6 V (Positive) and 25 kHz for single supply). -3.6 to -3.2 V (Negative) Replaces ZX76-31-XX-S+ series Same case and pinout and provide wideband performance, to 4 GHz instead of 2.4 (XX=SN/SP/PN/PP) GHz. 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 DC-4000 MHz 31 dB, 1 dB Step 5 Bit, Parallel control interface, Single Supply Voltage Product Features Low Insertion Loss High IP3, +52 dBm Typ Excellent return loss, 20 dB Typ Excellent accuracy, 0.1 dB Typ Single Supply Voltage: Vdd =+3V Generic photo used for illustration purposes only Control inputs buffered by Schmitt Triggers CASE STYLE: HK1172 Rigid unibody case Protected by US patent 6,790,049 ZX76-31A-PPS+ Connectors Order P/N Typical Applications SMA ZX76-31A-PPS+ Lab +RoHS Compliant Instrumentation The +Suffix identifies RoHS Compliance. See our web site Test equipment for RoHS Compliance methodologies and qualifications General Description The ZX76-31A-PPS+ is a 50 digital step attenuator provides adjustable attenuation of 0 to 31 dB in 1 dB steps. The control is a 5-bit parallel interface, and the attenuators operate on a single (positive) supply voltage. See application note AN-70-004 for 5V supply voltage. The ZX76-31A-PPS+ is produced using a unique case package for ruggedness and operation in tough environments. Simplified Schematic RF Input RF Out 16dB 8dB 4dB 2dB 1dB Parallel Control Internal Control Logic Interface Latch Enable REV. E ECO-009940 ZX76-31A-PPS+ RAV Mini-Circuits 210930 www.minicircuits.com P.O. Box 350166, Brooklyn, NY 11235-0003 (718) 934-4500 sales minicircuits.com Page 2 of 7