Low-EMI SST Oscillators come in miniature SMD package.
Press Release Summary:
Operating from 3.3 V supply, EQHM53 series covers 6-160 MHz frequencies and offers up to -15 dBc equipment EMI reduction from 5 x 3.2 mm package. They use spread spectrum technology (SST) to modulate output frequency with low frequency carrier. Reducing EMI radiation in electronic systems at clock oscillator, series has high output voltage of 2.4 V min, low output voltage of 0.4 V max, and output load of 10LSTTL gates or 15 pF.
Original Press Release:
Low-EMI SST Oscillators in Miniature Surface Mount Package!
Pittsford, NY. European crystal and oscillator specialist Euroquartz introduces a new series of low EMI oscillators offering a low cost solution to expensive EMI problems.
The new EQHM53 series oscillators are housed in a 5 x 3.2mm SMD package and offer up to -15dBc equipment EMI reduction. Operating from a 3.3V supply, EQHM53 series oscillators are available covering a broad frequency range from 6 to 160MHz and are drop-in replacements for standard 5 x 3.2mm SMD packaged devices.
EQHM series oscillators reduce EMI radiation in electronic systems at its origin - the clock oscillator itself. These low-EMI oscillators use spread spectrum technology (SST) to modulate the output frequency with a low frequency carrier, spreading the peak energy of the output frequency and its harmonics over a wider bandwidth.
By suppressing EMI at its source, Euroquartz's EQHM53 series oscillators eliminate the need for many expensive EMI protection aids such as PCB ground-planes, metal shielding, ferrite beads, RF gaskets and EMI filters, or even last-minute fixes when already-designed equipment fails at EMI testing time.
Specifications include "high" output voltage of 2.4V minimum, "low" output voltage of 0.4V maximum, output load of 10LSTTL gates or 15pF and operating temperature from -40 to +85 deg C for industrial versions and 0 to 70 deg C for commercial types.
EQHM53 series oscillators deliver duty cycle of 45/55, rise/fall times of 5ns maximum (1.5ns typical), current consumption of 15 to 45mA (frequency dependent) and peak frequency reduction of 10 to 16dB for 3rd to 19th odd harmonics. Pin 1 options include modulation on/off, tri-state for all outputs and power down. Aging is ±5ppm/year maximum while standard jitter is typically 250ps.
Available on tape and reel now from Euroquartz' USA distributor Saelig Co. Inc., Euroquartz's new EQHM53 series SST oscillators provide a drop-in replacement and low cost solution to expensive EMI problems and are priced under $30 each.
More: Alan Lowne, 585 385-1750 o fax -1768 Saelig Co. Inc, 1160-D2 Pittsford-Victor Rd. Pittsford, NY 14534 USA. info@saelig.com
