RFM offers a full set of custom embedded wireless networking solutions like Zigbee wireless mesh sensor networks, RF modules, IC transceiver, IC transmitters and IC receivers. RFM, Inc. manufactures low power wireless and RF radio modules, wireless mesh nodes for distributed sensing on distributed sensor networks. Low Power radio, n../arrowband and short range devices, front end saw filters, active RFID, RFIC, coupled resonator filters, single silicon chips in the 70MHZ and 300-1000Mhz range.

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RF Components
Products Guide



Wireless Device
Selection Guide

OP4015B

13.5x9.4mm case
780.881 MHz Clock - Optical Timing

Click here if you need additional technical information,
to inquire about samples or to discuss your custom needs.


• Quartz SAW Stabilized and Filtered “Diff Sine” Technology
• Fundamental-Mode Oscillation at 780.881 MHz
• Voltage Tunable for Phase Lock Loop Operations
Click here if you need additional technical information,
to inquire about samples or to discuss your custom needs.

download data sheet Rev Date 02/08/10

download Package Specs

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The output of this device is generated and filtered by narrowband quartz SAW elements at 780.881 MHz. The configuration of this clock is intended to provide a pure signal for optical timing applications in noisy signal environments. The Q/Qbar differential output swing of ±1 volt about 0 vdc has symmetry better than ±1% into loads from 40 ohms to 70 ohms; determined by customer application. The long term frequency accuracy is set by an external reference source allowing this device to complete a Phase Lock Loop design without the usual noise and jitter problems associated with PLL’s.

   
Electrical Characteristics
Characteristic Symbol Minimum Typical Maximum Units
Operating Frequency Absolute Frequency fO 780.881 MHz
Tune Range ±25 ppm
Tune Voltage 0 +3 VDC
Tuning Linearity ±3%
Tuning Sensitivity df/dv 140 300 ppm/V
Modulation Bandwidth 125 265 kHz
Q and Q Output Voltage into 50 Ohm (VSWR?1.2) VO 0.60 1.1 VP-P
Operating Load VSWR 2:1 VP-P
Symmetry 49 51 %
Harmonic Spurious -30 dBc
Nonharmonic Spurious -60 dBc
Phase Noise dBc/Hz@100 Hz offset -70 dBc/Hz
Phase Noise @ 1 kHz offset -100 dBc/Hz
Phase Noise @ 10 k offset -120 dBc/Hz
Noise Floor -150 dBc/Hz
Q and Q Jitter RMS Jitter .20 ps
No Noise on VCC 10 PSP-P
200 mVP-P noise added from 1 MHz to ½ fO 12 PSP-P
Input Impedence (Tuning Port) 1 KOhm
Output DC Resistance (between Q & Q) 50 KOhm
DC Power Supply Operating Voltage VCC 3.13 3.3 5.0 5.25 VDC
Operating Current ICC 70 mA
Operating Case Temperature TC -40°C +85°C °C

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