MD-124 Double-Balanced Mixer, 500 KHz - 500 MHz Features V 3.00 FP-2 Usable down to 200 KHz Conversion Loss: 6.5 dB Typical Impedance: 50 Ohms Nominal Maximum Input Power: 300 mW max. @ 25°C, Derated to 85°C @ 3.2 mW/°C n IF Port Current: 50 mA Max. n MIL-STD-883 Screening Available n n n n Description Transformers convert to the LO and RF paths to balanced lines connecting a low barrier, Schottky diode ring quad. These transformers help provide excellent isolation between ports. Conversion loss is low. The direct connection of the IF port to the diode quad allows these mixers to be used as phase detectors and bi-phase modulators. Pin Configuration Pin No. Function Pin No. Function 1 GND 5 LO 2 GND 6 GND 3 GND 7 GND 4 IF 8 RF Electrical Specifications1: TA = -55°C to +85°C Parameter Test Conditions Frequency Units Min Typ Max Frequency Range RF, LO Ports IF Port 0.5 - 500 DC - 500 MHz MHz — — — — — — dB — — 7.0 Conversion Loss Isolation LO to RF 0.5 - 10 MHz 10 - 200 MHz 200 - 500 MHz dB dB dB 35 30 25 — — — — — — LO to IF 0.5 - 10 MHz 10 - 200 MHz 200 - 500 MHz dB dB dB 30 25 20 — — — — — — RF to IF 0.5 - 10 MHz 10 - 200 MHz 200 - 500 MHz dB dB dB 25 15 15 — — — — — — DC Polarity Negative — — — — — DC Offset — — mV — <3 — RF Input 1 dB Compression 1 dB Desensitization dBm dBm — — +2 -2 — — 1. All specifications apply when operated at +7 dBm available LO power with 50 ohm source and load impedance. Double-Balanced Mixer, 500 KHz - 500 MHz MD-124 V 3.00 Electrical Specifications: TA = -55°C to +85°C Parameter Test Conditions Frequency Units Min Typ Max SSB Noise Figure Within 1 dB of Conversion Loss Max. — — — — — Typical Two Tone IM Ratio With –10 dBm input, each input 25 MHz and 35 MHz IF 100 - 400 MHz 400 - 500 MHz dB dB — — >50 >40 — — Typical Performance Curves Isolation Conversion Loss (LO = +7 dBm, RF = -5 dBm) LO - RF RF - IF 45 Isolation (dB) Conversion Loss (dB) LO - IF 50 7 6 40 35 30 25 5 20 0.2 1 5 20 50 100 300 500 700 0.2 1 5 Frequency (MHz) 20 50 100 300 500 700 Frequency (MHz) Conversion Loss vs. LO Power (LO = 35 MHz, RF = 30 MHz @ -20 dBm, IF = 5 MHz) 11 Ordering Information Part Number Package MD-124 PIN FP-2 Loss (dB) 10 9 8 7 6 5 -10.0 -7.5 -5.0 -2.5 0.0 2.5 5.0 7.5 10.0 LO Power (dBm) Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. 2