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| WJZ2020 Broadband Surface Mount Mixer Product Features x x x x x x x +29 dBm Input IP3 RF: 800 - 1000 MHz LO: 700 - 900 MHz IF: 20 - 100 MHz +17 dBm LO Drive Level No Internal Solder Connections Lead Free/RoHS-compliant SMT package x No External Bias Required Product Description The WJZ2020 is a passive double-balanced diode-ring mixer that provides high dynamic range performance in a Lead Free/ RoHS-compliant surface mount package. The mixer is nominally driven with a LO input power of +17 dBm to optimize its performance. Other WJZ models are available for other LO drive levels. Targeted applications include frequency up/down conversion, modulation and demodulation for receivers and transmitters used in 2.5G and 3G GSM/CDMA/W-CDMA systems. The device can also be used in Radar, Satellite, Test / Medical Instruments, Avionics communications and Navigation markets. Functional Diagram 1 2 3 LO 8 4 RF 7 6 IF 5 Top View Applications x x x x Up/down frequency conversion Phase Detector Image Rejection Current Controlled Attenuator Specifications Parameter SSB Conversion Loss Port-to-Port Isolation L-R L-I R-I 3rd Order Input Intercept Point 1dB Input Compression Point VSWR RF Port LO Port IF Port LO Drive Level Units dB dB dB dB dBm dBm Min 27 20 Typ 6.2 36 32 32 +29 +14 1.6:1 1.2:1 1.1:1 +17 Max 7.7 Notes See note 1. Guaranteed at 7.2 dB max at 25oC IF = 100MHz dBm 1. Measured in a 50-ohm system with a nominal LO drive of +17 dBm, low side LO, in a downconverter application with LO = 700-900 MHz, RF = 800-1000 MHz, IF = 100 MHz Absolute Maximum Rating Parameter Operating Case Temperature Storage Temperature RF Input Power -40 to +85 qC -65 to +100 C +23 dBm Rating Ordering Information Part No. WJZ2020 WJZ2020-PCB Description Broadband Surface Mount Mixer Fully-Assembled Mixer Application Board Specifications and information are subject to change without notice Operation of this device above any of these parameters may cause permanent damage. Standard T/R reel size = 500 pieces on a 13" reel. WJ Communications, Inc x Phone 1-800-WJ1-4401 x FAX: 408-577-6621 x e-mail: sales@wj.com x Web site: www.wj.com Page 1 of 3 April 2007 WJZ2020 Broadband Surface Mount Mixer Performance Charts Input IP3 vs RF Frequency IF = 100 MHz, LO = 17 dBm, +25 UC Conversion Loss vs RF Frequency IF = 100 MHz, LO = 17 dBm, +25 UC 40 35 30 25 20 700 Conversion Loss (dB) 8 7 6 5 4 700 Input IP3 (dB) 750 800 850 900 950 1000 750 800 850 900 950 1000 RF Frequency (MHz) RF Frequency (MHz) LO VSWR vs Frequency 1.5 1.4 VSWR RF VSWR vs Frequency 2.2 2.0 1.8 VSWR IF = 100 MHz, +25oC 1.3 1.2 1.1 1.0 700 1.6 1.4 1.2 750 800 850 900 Frequency (MHz) 950 1000 1.0 700 750 800 850 900 RF Frequency (MHz) 950 1000 Isolation vs LO Frequency 60 50 40 30 20 700 IF = 100 MHz, +25 UC L-I Isolation (dB) L-R 750 800 850 900 LO Frequency (MHz) 950 1000 Specifications and information are subject to change without notice WJ Communications, Inc x Phone 1-800-WJ1-4401 x FAX: 408-577-6621 x e-mail: sales@wj.com x Web site: www.wj.com Page 2 of 3 April 2007 WJZ2020 Broadband Surface Mount Mixer Mechanical Information This package is lead-free/RoHS-compliant. The plating material is lead-free Tin (Sn). It is compatible with lead-free (maximum 260qC reflow temperature) and recommend 245qC reflow temperature soldering processes. Also recommend adding active flux of 2% during solder reflow Application Circuit WJZ2020 PIN 8 PIN 4 LO PIN 6 RF IF Notes: 1. Circuit board material: .021" FR-4, 2 layers, .025" total thickness 2. Blocking capacitors are required on the ports (pins 4., 6, 8) if any dc signal is present. Outline Drawing Product Marking The component will be marked with a "WJZ2020" designator followed by an alphanumeric lot code on the top surface of the package. WJZ2020 XXXX Tape and reel specifications for this part will be located on the website in the "Application Notes" section. Functional Pin Layout 1 2 3 Land Pattern / Mounting Configuration LO 8 4 RF 7 6 IF 5 Top view Pin No. 4 6 8 1,2,3,5,7 Backside Metal Notes: 1. Ground vias are critical for RF grounding considerations. 2. A minimum of 12 ground vias underneath the device is required. 3. Trace width depends on the PC board material and thickness Function RF IF LO GND Specifications and information are subject to change without notice WJ Communications, Inc x Phone 1-800-WJ1-4401 x FAX: 408-577-6621 x e-mail: sales@wj.com x Web site: www.wj.com Page 3 of 3 April 2007 |
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