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| GaAs MMIC Receiver - NEW June 2005 - Rev 01-Jun-05 General Description MSRX-1823 The MSRX-1823 is a low cost, highly integrated MMIC-based receiver, suitable for use in the 18 GHz and 23 GHz microwave radio bands. The receiver design is based on one MMIC chip from Mimix Broadband, the XR1006 receiver. Features in the MMIC are low noise, sub-harmonic mixing, image rejection, and LO buffering. Typical performance of the module includes < 3.5 dB noise figure, >15 dB image rejection, 26 dB conversion gain, and 15 dB RF return loss. The module's RF interface is a standard WR-42 flange, with LO input and IF output connections made using SMA connectors. A 90 hybrid coupler combines the quadrature IF outputs from the MMIC to achieve image rejection, followed by a non-reflective RF switch. The upper and lower sideband can be selected easily using a RF switch and a single control voltage, followed by an IF amplifier. The module accepts a single +8V supply with 0 / 5 V band selection control voltage. Specifications Parameter RF Frequency LO Frequency (x2) IF Frequency RF Input Return Loss Input P1dB Conversion Gain Image Reject Noise Figure LO power level (x2) LO Isolation @RF port VSupply ISupply RF Interface LO Interface IF Interface Unit GHz GHz GHz dB dBm dB dB dB dBm dBc V mA 18 GHz 23 GHz 17.7 - 19.7 21.2 - 23.6 7.5-8.95 (USB) 9.25 - 10.9 (USB) 9.75-11.2 (LSB) 1.8 - 2.7 < -15 < -15 > -17 > -17 26 (LSB) 26 (USB) 26 (USB) < -15 (LSB) < -18 (USB) < -27 (USB) 3.5 (LSB) 3.2 (USB) 3.5 (USB) -2 - +2 < -50 < -50 +8 350 WR42 SMA (f ) SMA (f ) Block Diagram WR42 interface RF INPUT 17.7 - 23.6 GHz XR1006 Sub-Harmonic Image Reject Mixer 90 o Hybrid Coupler Non-reflective IF switch IF amplifier G LNA I Q G G SMA IF OUT 1.8 - 2.7 GHz SMA LO IN (-2 - 2 dBm) 7.5 - 11.5 GHz For a complete 18 and 23 GHz transceiver solution, please see the datasheet on the MSTX-1823. Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099 Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com Characteristic Data and Specifications are subject to change without notice. 2005 Mimix Broadband, Inc. Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept their obligation to be compliant with U.S. Export Laws. |
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