COUPLING AND TERMINATION MODULES APPLICATIONS * * * * * * * * AC coupling between signals. Waveform Clipping RF Signal Isolation RF I/O Port Decoupling Precision 50 Termination RF Signal Detection Microwave Signal Attenuation DC Restoration FEATURES * * * * * * * * * DC Blocks with 0.1, 2.2 or 300 uf RF Chokes with 1 uh or 10 uh Series- or Shunt-connected Diodes Series-Connected Resistors to 1 M 0.5% 50 Feedthru Terminations Dual AC- or DC-coupled 50 Terminations AC- or DC-Coupled Attenuators SMA Male/Female I/O Connectors for inline use with no cabling required 0.41W x -0.35H x 1.5-in. Modules Clockwise from top-left: 1) PRL-ACX-12dB, AC-Coupled 50 Attenuator (12 dB) 2) PRL-ACT-50, Dual Ch. AC-Coupled 50 Termination 3) PRL-FTC-104, Feedthru Decoupling Cap (0.1 f) 4) PRL-SC-104, DC Block (0.1 f) 5) PRL-FTR-50, Feedthru 50 Termination DESCRIPTION The PRL Series of Coupling and Termination Modules are two-terminal devices containing components which are seriesconnected, shunt-connected, or combination of both. They are intended for use in general purpose lab and production test environments. For example, in a given test setup one may need to insert a DC Block, an Attenuator, a 50 Termination, a Feed-through Decoupling Capacitor, an RF Choke, a Series Diode, etc. in order to accommodate a change in the test requirement. As of this date, the following modules are available, and more are being developed. Series-Connected Series Capacitor Series Inductor Series Schottky Diode Series Resistor Shunt-Connected Feed-Thru Shunt Capacitor Feed-Thru Shunt Resistor Feed-Thru Shunt Schottky Diode Series and Shunt-Connected AC-Coupled 50 Termination AC-Coupled Attenuator DC-Coupled Attenuator Custom configurations containing combinations of different components are available on special order. Please consult factory. AVAILABLE MODELS AND SPECIFICATIONS: DC Blocks, Series-Connected Capacitors Model No. Capacitance value/Type PRL-SC-104 0.1 uf, 10%, 30 V,X7R PRL-SC-225 2.2 uf, 20%, 30 V, Z5U PRL-SC-307-6V 300 uf, 30%, 6 V, Z5U RF Chokes, Series-Connected Inductors Model No. Inductance Value PRL-SL-102 1000 nh, 5% PRL-SL-103 10 uh, 5% Irms Max 300 mA 300 mA VSWR <1.1@3.0 GHz <1.2@2.5 GHz <1.5@1.0 GHz Tr/3dB BW 40 ps/>8 GHz 50 ps/7 GHz 80 ps/4.3 GHz DCR max 3.5 3 SRF Typical 400 MHz 60 MHz Application AC Coupling AC Coupling AC Coupling Application RF Isolation RF Isolation 1234 Francisco Street, Torrance, CA 90502 Tel: 310-515-5330 Fax: 310-515-0068 Email: sales@pulseresearchlab.com www.pulseresearchlab.com Series-Connected Schottky or PN Junction Diodes Model No. Equivalent Device Type PRL-SSDP HSMS-2813/-2814 (Schottky) PRL-SDP 1N914 VBR 20 V 100 V If @ 1V Vf 70 mA 10 mA CT 2.4 pf 4 pf Application RF Detector General purpose detector Comments 2 devices in // Series-Connected Resistors Model No. PRL-SR-50 PRL-SR-450 PRL-SR-950 PRL-SR-106 Resistance Value 50 1% 450 1% 950 1% 1 M 1% Max. Vr 5V 10 V . 15 V. 100 V Shunt-Connected Capacitors Model No. Value/Type PRL-FTC-104 0.1 uf, 10%, 30 V,X7R Application Back 50 Term. 10X attenuator 20X attenuator Current source Application Decoupling/AC short Shunt-Connected Resistive Terminations Model No. Value/Type Max Vr/Ir PRL-ACT-50 50 , 1% 5 V Max. PRL-DCT-50 50 , 1% 5 V Max. PRL-FTR-50 50 , 0.5% 5 V Max. PRL-FTR-0 0 , +0.005 500 mA Max. Application/Description Dual AC Coupled 50 termination Dual DC Coupled 50 termination Precision Feed-Thru Termination. Short circuit termination Shunt-Connected Diodes Model No. Type PRL-FTSDPD HSMS-2813/-2814, SBD PRL-FTSDND HSMS-2813/-2814, SBD If @ 1V Vf 70 mA 70 mA Attenuators Model No. PRL-ACX-12dB PRL-DCX-3dB PRL-DCX-6dB PRL-DCX-10dB PRL-DCX-14dB PRL-DCX-20dB Type AC Coupled DC Coupled DC Coupled DC Coupled DC Coupled DC Coupled VBR 20 V 20 V Attenuation/Accuracy 12 dB, 0.75dB 3 dB, 0.3dB 6 dB, 0.4dB 10 dB, 0.5dB 14 dB, 0.75dB 20 dB, 1.0dB CT 2.4 pf 2.4 pf PD Max 1W 1W 1W 1W 1W 1W Application +Signal clipping -Signal clipping Tr/3dB BW 60 ps/5.8 GHz 60 ps/5.8 GHz 60 ps/5.8 GHz 60 ps/5.8 GHz 60 ps/5.8 GHz 60 ps/5.8 GHz Comments Grounded Cathode, 2 devices in // Grounded Anode, 2 devices in // VSWR, f 3.3GHz 1.25 Max. 1.25 Max. 1.25 Max. 1.25 Max. 1.25 Max. 1.25 Max. Cascading Modules Although these modules are self contained, multiple modules can be cascaded for value change or for performing different applications. The most common application is cascading attenuators to obtain higher attenuation values. Adding a DC block, such as the PRL-SC-104, in series with the PRL-FTSDPD/ND, shunt connected diode, produces a DC Restorer. Depending on the polarity of the diode, an AC coupled input signal can be shifted either above or below ground using the DC Restorer. For example, the maximum output of the PRL-470A, variable output driver, ranges from -5 V to +10 V into a 1 M load. It can be made into either a +15 V output , when the PRL-FTSDND is used, or into a -15 V output when the PRL-SDPD is used. In each case, the diode simply limits the output swing either above or below ground. The combination of a DC block and either a series or shunt Schottky diode can also be used as a detector. The PRL-FTR-50, 0.5% 50 feed-through termination, is especially useful for checking the DC accuracy of an attenuator. Once connected to the output of the attenuator, or any similar device, the feed-through output can be connected to a DVM without have to worry about IR loss of the interconnecting cable. The PRL-SR-50, the series 50 module can be connected to the output of an Op Amp to give the amplifier a 50 back matched resistance. The higher value series resistor modules, such as the SR-450 or PRL-SR-950, can be used as 10X and 20X attenuators for circuits that need to, but can not, drive 50 loads. The RF choke module is often used for adding DC bias to a sensitive circuit node where the far end of the inductor isolates the stray capacitance of the bias circuit from the node. 1234 Francisco Street, Torrance, CA 90502 Tel: 310-515-5330 Fax: 310-515-0068 Email: sales@pulseresearchlab.com www.pulseresearchlab.com