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> Macom emrs-11F dbl bal mixer 350MHZ..2GHZ +7DBM (qty.2)
Macom emrs-11F dbl bal mixer 350MHZ..2GHZ +7DBM (qty.2)
MACOM EMRS-11F 350MHz..2GHz, IF DC-400MHz, +7dBm Dbl Bal Mixer (Qty.2)
On offer are 2 new (old stock) Double Balanced Diode mixers by M/A-Com (now part of Tyco Electronics), fresh in cut factory tape.
* Wideband - RF and LO (local oscillator) range of 350MHz..2000MHz, IF of DC..400MHz
* Useful for 23cm / 1296MHz ham band transverters, GPS, weather satellite receivers, etc
* Excellent performance - professional device, 50 ohm matched
* Easily driven with a +7dBm LO signal (ie. 5mW at 50 ohm) from a MMIC or regular transistor stage
* Passive diode mixers are symmetrical so can both upconvert and downconvert
* High quality ceramic SMD package (approx size of a 6 pin DIP optoisolator, 0.1" pitch)
[Note: these pictures are of my spares. You will receive yours in sealed tape ...]
This is a current model, and an exact equivalent (second source) of the Minicircuits RMS-11F. As it says in the datasheet ...
"M/A-COM s EMRS-11F is a Low Cost, Broadband, high performance Double Balanced Mixer designed for use in high volume wireless applications. The device has been optimised by careful selection of the Schottky Diode and Balun Transformer for excellent performance."
There are relatively few mixers which are suitable for experimenters on the 23cm / 1296MHz Ham band. Most (like the SBL-1 or 2) top out at 500MHz or 1GHz. However these EMRS-11F parts, designed for GSM mobile and GPS use are well suited to receive converters or transverters on 23cm, the lowest microwave Ham band.
The most common scheme is to mix in an 1152MHz local oscillator to convert signals to the 144MHz VHF band where there's plenty of equipment and experience.
In another experiment I used these to mix a couple of cheap mobile phone VCOs (like the MQE-504 I'm also listing) to get a DC-150MHz sweeper, and I'm sure you'll think of others ...
As mentioned, these are not so commonly seen, so might be worth picking up a couple for the parts drawer while they're available.
Being a current model, full data is on the Macom website at the link below. Also given is a link to the MCL part data because it contains some useful graphs.
4.75mm (H) x 6.5mm (W) x 10mm (L), (0.1") 2.54mm pin pitch (6 pad DIL)
http:// /DataSheets/EMRS-11F%20Verison%204.pdf
http://minicircuits.com/pdfs/RMS-11F.pdf
