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PEM001 Datasheet(PDF) 7 Page - Pasternack Enterprises, Inc. |
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PEM001 Datasheet(HTML) 7 Page - Pasternack Enterprises, Inc. |
7 / 18 page 7 TECHNICAL DATA SHEET PEM001 60 GHz Transmitter (Tx) Waveguide Module Click the following link (or enter part number in “SEARCH” on website) to obtain additional part information including price, inventory and certifications: 60 GHz Transmitter (Tx) Waveguide Module PEM001 PEM001 REV Transmitter Architecture The PEM001 transmitter uses a double conversion superheterodyne architecture with a sliding IF. The IF frequency is at 1/7 the RF carrier frequency, and the VCO is at 2/7 the RF carrier frequency. The LO is 3x the VCO frequency. The LO and IF are generated from a built-in synthesizer that has a step size at the RF carrier frequency of either 500 MHz or 540 MHz depending upon which reference clock frequency is used. The 540 MHz step size uses a 308.571 MHz reference, and the 500 MHz step uses a 285.714 MHz frequency. The IEEE channels for 802.11ad and 802.11aj are supported when the 540 MHz step size is used. I and Q analog baseband signals are upconverted to the IF frequency at the input mixers. The IF signal is filtered with a variable gain amplifier and filter with approximately 20 dB range, which is then mixed with the LO. A notch filter attenuates the image frequency. The output of the mixer is fed to the PA stage which is coupled to the low-loss waveguide transition. There are optional FSK/MSK baseband data inputs for non-coherent modulation applications. The overall phase noise and I/Q balance specifications are sufficient for up to 16 QAM operation. Configuration and settings are controlled through a digital serial interface port. The block diagram below shows the various stages and circuits in the module. BB_IP PA Var IF Filter IF VGA x3 2 0 90 Div BB_IM BB_QP BB_QM FMP_Q FMM_Q FMP_I FMM_I REFCLKP REFCLKM Serial Control Registers +1.5 +2.7 +4 WR-15 Waveguide UG-385/U Flange Synthesizer 57.0 to 64.8 GHz 0.5 or 0.54 GHz step Figure 3 PEM001 Block Diagram |
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