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  • Provides up to 15dB reduction in system EMI
  • ‘Drop-in’ replacement for standard clocks
  • Choice of modulation rate and spread
  • Miniature package: 7.0mm x 5.0mm x 1.8mm

Typical Applications

  • Printers, Multiple Function Printers (MPCs)
  • Digital Copiers; PDAs
  • Networking: LAN/WAN; Routers
  • Storage Systems (CD-ROM, VCD, DVD, HDD)
  • Scanners; Modems; Projectors
  • Embedded Systems
  • Musical Instruments
  • Automotive: GPS car navigation systems


Model No: 3EQHM57 (Group ‘P’)
Frequency Range: 13.0MHz to 220MHz
EMI Reduction*: EMI Reduction (dB) = 10log("Total%"x"SSC Frequency(MHz)"/0.12)
Modulation Carrier Frequency: 25.3kHz min, 58.6kHz max. Frequency dependent Call for details
Output Logic: CMOS
Input Voltage: Vdd = +3.3VDC ±5%
Frequency Stability*** Commercial (0~70°C): ±25ppm (Spec. code = ‘A’) ±50ppm (Spec. code = ‘B’) ±100ppm (Spec. code = ‘C’) Industrial (-40~+85°C): ±25ppm (Spec. code = ‘D’) ±50ppm (Spec. code = ‘E’) ±100ppm (Spec. code = ‘F’)
Output Voltage HIGH ‘1’: 2.4V min. at 80% Vdd
Output Voltage LOW ‘0’: 0.4V max. at 20% Vdd
Rise/fall Times: 1.2ns max, (frequency dependant
Load: 15pF
Start-up Time: 2ms typical, 5ms max.
Current Consumption: 25mA typical, freq. dependant
Duty Cycle: 50%±5% (CL=15pF, 50%Vdd)
Cycle to Cycle Jitter: ±100ps typ. ±150ps max.
Output Impedance: 40 Ohms typical
Static Discharge Voltage: >2000V (per MIL STD 833)
Storage Temperature: -65°C to +150°C
Ageing: ±5ppm /year max at Ta=25°C
Packaging: EIA 16mm tape and reel, 1k per
Pad 1 Option: No function available. Do not electrically connect pad 1.