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LOW EMI SPREAD SPECTRUM CRYSTAL CLOCK OSCILLATOR
ASSM/ASSML SERIES
*RoHS COMPLIANT
APPLICATIONS: * Telecommunications. * Capital equipment. * Aerospace. * Consumer electronics, printers. * Medical equipment.
14.27 x 10.7 x 5.3mm
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FEATURES: * Patented spread spectrum technology. * Meets FCC and EMC Directive for EMI requirements. * Standard TTL or HCMOS compatible output. * Drop-in replacement for standard plastic SMD crystal oscillators * Reduce electromagnetic emissions up to 20dB!
STANDARD SPECIFICATIONS:
PARAMETERS Frequency Range (Fo) Operating Temperature (Topr) Storage Temperature (Tsto) Frequency Stability vs. Temp (dF/Fo) Operating Supply Voltage (VDC) Operating Input Current (IDD) duty Cycle Rise time Full time Output Voltage (VOH/VOL) Start Up Time Aging Jitter (CCJ1) Jitter (CCJ2) Jitter (CCJ3) Jitter (CCJ4) Jitter (CCJ5) Output Load Bandwidth Accuracy ASSM ASSML CONDITIONS 3.500MHz ~ 128.000MHz -40C to +85C (See Ordering Options) -65C to +150C 100 ppm max. (See Ordering Options) 5.0 Vdc 3.3 Vdc 30 mA max. 45/55 5.0 nS 3.5 nS 5.0 nS 3.5 nS 3.0 Vdc min. / 0.4 Vdc max. 10 mS max. / 3 mS typ. 5 ppm max. / year 625 pS typ. 225 pS typ. 125 pS typ. 135 pS typ. 180 pS typ. 10 - LS TTL or 15 pF 10 %
5% % max. 15 pF 15 pF +25C
F = 4 MHz F = 8 MHz F = 32 MHz F = 64 MHz F = 128 MHz
OUTLINE DRAWING:
Recommended Land Pattern
PIN 1 2 3 4 5 FUNCTION Input Input-GND GND Output Output
ABRACON IS ISO 9001 / QS 9000 CERTIFIED
rev2.1-5/06
30332 Esperanza, Rancho Santa Margarita, California 92688 tel 949-546-8000 | fax 949-546-8001 | www.abracon.com
LOW EMI SPREAD SPECTRUM CRYSTAL CLOCK OSCILLATOR
ASSM/ASSML SERIES
*RoHS COMPLIANT
14.27 x 10.7 x 5.3mm
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OPTIONS AND PART IDENTIFICATION (Left blank if standard):
ASSM(L) - Frequency - Temperature - Frequency Stability - Bandwidth - Packaging Operating Voltage: - ASSML = 3.3 5 % Vdc - ASSM = 5.0 5 % Vdc Temperature options: - E for -20C to +70C - F for -30C to +70C - N for -30C to +85C - L for -40C to +85C Frequency stability option: - R for 25 ppm max. - K for 30 ppm max. - H for 35 ppm max. - C for 50 ppm max. Bandwidth option: - CX = Center Spread - DX = Down Spread (See table above for selection options) Packaging option: - T for Tape and Reel
* Example: ASSM-48.000-E-C-C1-T would be the part number for a 48.000MHz, 1.2% certer spread with a 50 ppm center frequency accuracy.
FACTORY BANDWIDTH SELECTION:
FREQ. (MHz) Order Options 4-5 5-6 6-7 7-8 8 - 10 10 - 12 12 - 14 14 - 16 16 - 20 20 - 24 24 - 28 28 - 32 32 - 40 40 - 48 48 - 56 56 - 64 64 - 80 80 - 96 96 - 112 112 - 128 CENTER SPREAD (%) C1 1.4 1.3 1.2 1.1 1.4 1.3 1.2 1.1 1.4 1.3 1.2 1.1 1.4 1.3 1.2 1.1 1.4 1.3 1.2 1.1 C2 1.2 1.1 0.9 0.9 1.2 1.1 0.9 0.9 1.2 1.1 0.9 0.9 1.2 1.1 0.9 0.9 1.2 1.1 0.9 0.9 C3 0.6 0.5 0.5 0.4 0.6 0.5 0.5 0.4 0.6 0.5 0.5 0.4 0.6 0.5 0.5 0.4 0.6 0.5 0.5 0.4 C4 0.5 0.4 0.4 0.3 0.5 0.4 0.4 0.3 0.5 0.4 0.4 0.3 0.5 0.4 0.4 0.3 0.5 0.4 0.4 0.3 DOWN SPREAD (%) D1 -3.0 -2.7 -2.5 -2.3 -3.0 -2.7 -2.5 -2.3 -3.0 -2.7 -2.5 -2.3 -3.0 -2.7 -2.5 -2.3 -3.0 -2.7 -2.5 -2.3 D2 -2.2 -1.9 -1.8 -1.7 -2.2 -1.9 -1.8 -1.7 -2.2 -1.9 -1.8 -1.7 -2.2 -1.9 -1.8 -1.7 -2.2 -1.9 -1.8 -1.7 D3 -1.9 -1.7 -1.5 -1.4 -1.9 -1.7 -1.5 -1.4 -1.9 -1.7 -1.5 -1.4 -1.9 -1.7 -1.5 -1.4 -1.9 -1.7 -1.5 -1.4 D4 -0.7 -0.6 -0.6 -0.5 -0.7 -0.6 -0.6 -0.5 -0.7 -0.6 -0.6 -0.5 -0.7 -0.6 -0.6 -0.5 -0.7 -0.6 -0.6 -0.5 (KHz)
31.25 - 39.06 39.06 - 46.88 46.88 - 54.69 54.69 - 62.50 31.25 - 39.06 39.06 - 46.88 46.88 - 54.69 54.69 - 62.50 31.25 - 39.06 39.06 - 46.88 46.88 - 54.69 54.69 - 62.50 31.25 - 39.06 39.06 - 46.88 46.88 - 54.69 54.69 - 62.50 31.25 - 39.06 39.06 - 46.88 46.88 - 54.69 54.69 - 62.50
ABRACON IS ISO 9001 / QS 9000 CERTIFIED
rev2.1-5/06
30332 Esperanza, Rancho Santa Margarita, California 92688 tel 949-546-8000 | fax 949-546-8001 | www.abracon.com

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