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Marki亚太地区总经销BAL-0026巴伦平衡器,放大器隔离器

发布时间:2019/11/6 17:26:00 访问次数:44发布企业:深圳市芯达科技有限公司

Broadband Isolation Balun (300KHz to 26.5GHz) BAL-0026 Page 1 215 Vineyard Court, Morgan Hill, CA 95037 | Ph: 408.778.4200 | Fax 408.778.4300 | info@markimicrowave.com Copyright © 2019 Marki Microwave, Inc. | Rev. c Features  300 kHz to 26.5 GHz Balun (Balanced to Unbalanced Balun Transformer)  1:2 Transformer (50 Ω unbalanced, 100 Ω differential/50 Ω balanced port)  Applications: Analog to Digital Converters, Balanced Receivers, Baseband Digital Modulation, Signal Integrity  Termination insensitive: Particularly suited to testing poorly matched or non-50 Ω devices or for extending 2 port VNAs for differential testing  BAL-0026.s3p Electrical Specifications - Specifications guaranteed from -55 to +100C, measured in a 50Ω system. Parameter Frequency Range Min Typ Max Insertion Loss (dB) 300 kHz to 26.5 GHz 5.5 7.5 Isolation (dB) 1 to 26.5 GHz 24 Nominal Phase Shift (Degrees) 300 kHz to 26.5 GHz 180 Amplitude Balance (dB) ±0.5 ±1.2 Phase Balance (Degrees) ±3 ±10 Common Mode Rejection (dB) 22 30 VSWR (Input) 1.5 VSWR (Output) 1.55 Group Delay (ps) 520 RMS Group Delay Ripple (ps) 8.2 Risetime /Falltime (ps)1 7.5 Total Input Power (W) 1 Weight (g) 125 Model Number Description BAL-0026 300 kHz to 26.5 GHz Balun with SMA connectors1 , LEAD-FREE/RoHS COMPLIANT 1Default is SMA female connectors. Consult factory for other connector options. Broadband Isolation Balun (300KHz to 26.5GHz) BAL-0026 Page 2 215 Vineyard Court, Morgan Hill, CA 95037 | Ph: 408.778.4200 | Fax 408.778.4300 | info@markimicrowave.com Copyright © 2019 Marki Microwave, Inc. | Rev. c Block Diagram Single ended to differential Differential to single ended Typical Performance 180° 0° 180° 0° Broadband Isolation Balun (300KHz to 26.5GHz) BAL-0026 Page 3 215 Vineyard Court, Morgan Hill, CA 95037 | Ph: 408.778.4200 | Fax 408.778.4300 | info@markimicrowave.com Copyright © 2019 Marki Microwave, Inc. | Rev. c Typical Performance This space is left blank intentionally Low frequency 1MHz square wave input Low frequency oscilloscope measurement of a 1MHz square wave input. Blue is 0° port output, pink is 180° port output. Note the amplitude divergence due to slight high pass roll off near DC. Oscilloscope measurements of the BAL-0026 with a 40 Gb/s PRBS pattern in single ended-to-differential mode. Eye diagrams are taken with a 231 -1 PRBS input demonstrating minimal eye distortion/closure afforded by the extremely low frequency operation of the balun (<300 kHz). Broadband Isolation Balun (300KHz to 26.5GHz) BAL-0026 Page 4 215 Vineyard Court, Morgan Hill, CA 95037 | Ph: 408.778.4200 | Fax 408.778.4300 | info@markimicrowave.com Copyright © 2019 Marki Microwave, Inc. | Rev. c Oscilloscope measurements of the BAL-0026 with a 28 Gb/s PRBS pattern. Bit pattern is measured with a 27 -1 PRBS input demonstrating extremely good pulse fidelity for both differential-to-single ended and single ended to differential mode conversions. Apparent baseline wander in differential-to-single ended is due to low pass filtering by test cables. Broadband Isolation Balun (300KHz to 26.5GHz) BAL-0026 Page 5 215 Vineyard Court, Morgan Hill, CA 95037 | Ph: 408.778.4200 | Fax 408.778.4300 | info@markimicrowave.com Copyright © 2019 Marki Microwave, Inc. | Rev. c Mixed Mode Scattering Parameters Mixed mode scattering parameters are used to characterize differential circuits. For baluns, this means that the 0° and 180° ports become a single 100Ω differential port and the common port remains the same 50Ω common port. The two-port s-parameters of the balun are then characterized based on differential (d), common mode (c), or single-ended (s) signals. For example: S12ds is the differential output response given a single ended input. Broadband Isolation Balun (300KHz to 26.5GHz) BAL-0026 Page 6 215 Vineyard Court, Morgan Hill, CA 95037 | Ph: 408.778.4200 | Fax 408.778.4300 | info@markimicrowave.com Copyright © 2019 Marki Microwave, Inc. | Rev. c Broadband Isolation Balun (300KHz to 26.5GHz) BAL-0026 Page 7 215 Vineyard Court, Morgan Hill, CA 95037 | Ph: 408.778.4200 | Fax 408.778.4300 | info@markimicrowave.com Copyright © 2019 Marki Microwave, Inc. | Rev. c DC Interface Port Description DC Interface Schematic Common (Unbalanced Port) The common port is DC connected to the 0 o port through a resistor and to ground through a resistor. 0 o Port (Balanced) The 0o port is DC connected to the common port through a resistor and to ground through a resistor. 180o Port (Balanced) The 180o port is DC shorted to ground. Revision History Revision code Revision Date Comment - 2014 Datasheet initial Release A 2016 Typical Performance Plots Updated B October 2019 Mixed Mode Scattering Parameters added C November 2019 RoHS Compliant assembly Marki Microwave reserves the right to make changes to the product(s) or information contained herein without notice. Marki Microwave makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpos

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