LFOCXO065520BULK

OCXO Specification Part No. + Packaging: LFOCXO065520BULK Customer Part: Description A GPS disciplined OCXO (GPSDO) incorporating sync to a 1pps input and 1pps output with tight holdover stability achieved by using an adaptive algorithm. Current internal parameters of the algorithm are available to the user via Tx and Rx commands. Model IQCM-100 Model Issue number 2 Application Information (Reference Drawing): Connect the 1PPS output of your GPS system to the IQCM-100. A MCU can be used to monitor the working state of the IQCM-100. Working States (Reference Drawing): Run1: Fast track. Adjust the OCXO 10MHz output frequency quickly to track the 1PPS to 10MHz with 1PPS reference. Run2: Slow track. Adjust the OCXO 10MHz output frequency slowly when phase error is in the defined range. Holdover: No 1PPS input present; an algorithm enables adaptive modelling of the frequency stability of an OCXO with reference to the GPS timing signal. Free Run: Clock module powered up with no 1PPS input. Note1: The IQCM-100 should be left powered and running for 7 days minimum before operation to allow for the OCXO's internal drift to stabilise. Note2: The adaptive module algorithm can be built after two days operation with good GPS signal, however this data will be lost at power down. Note3: When State input (Pin 8) is set low the IQCM-100 will operate in Holdover mode regardless of the 1PPS signal condition. Output Data Word Example: $PDP,00,0,F,1,-3095,32768.0000,32768.0000,000,000,00000. 0000,00000.0000,00000.0000,00000.0000,3-23,+000.0000,-00 00,www.iqdfp.com,1.1,2011-05-16*55 (See table for full description) Outline (mm) Workflow Diagram Frequency Parameters Frequency 10.0MHz Operating Temperature Range -20.00 to 75.00°C Accuracy (24-hour averaging when locked to 1PPS): ±1E-12 Ageing (Vs and temperature constant, reference to T=25°C, Vs = 5.0V and after 30 days operation): ±0.2ppb per day, ±10ppb per year Short Term Stability (tested after power for 1hr ref to 25°C, 1s): 2E-11 max Sales Office Contact Details: UK: +44 (0)1460 270200 France: 0800 901 383 Germany: 0800 1808 443 USA: +1.760.318.2824 Printed on 4 Sep 21 23:14 using Part Data Sheet V1.0018 Email: info@iqdfrequencyproducts.com Web: www.iqdfrequencyproducts.com Page 1 of 4 OCXO Specification Part No. + Packaging: LFOCXO065520BULK Customer Part: Electrical Parameters 5.0V ±5% Supply Voltage Note: Pins 3 to 11 and Pin 13 should not be subjected to a voltage greater 3.6V. If subjected to a higher voltage the processor will be damaged and the unit will not work correctly. 1PPS Reference Input, Pin 10 (50Ω test condition): Waveform: HCMOS ViH: 2.7V min ViL: 0.4V max Pulse Width: 10us min Stability: 200ns max State Input, Pin 8 (24hrs after GNSS lock status: ±25ns 10MHz RF Output Details, Pin 2: HCMOS Compatible, 15pF load (Sinewave 50Ω option available) VoH: 2.7V min VoL: 0.4V max Rise and Fall time: 8ns max Duty Cycle: 45/55% max Lock Status Indicator, Pin 5: Module Locked: 2.7V min Module Holdover: 0.4V max Module Locked means Working State is = Run2 Serial Interface (Pin 6 and Pin 7) UART VoL and ViL: 0.4V max VoH and ViH: 2.7V min Baud rate: 9600 Bits: 8 Parity: N Stop Bit: 1 Sales Office Contact Details: UK: +44 (0)1460 270200 France: 0800 901 383 Germany: 0800 1808 443 USA: +1.760.318.2824 Printed on 4 Sep 21 23:14 using Part Data Sheet V1.0018 Email: info@iqdfrequencyproducts.com Web: www.iqdfrequencyproducts.com Page 2 of 4 OCXO Specification Part No. + Packaging: LFOCXO065520BULK Customer Part: Noise Parameters Phase Noise on 10MHz RF output signal (dBm/Hz) Offset Typical Max 10Hz -125 -120 100Hz -140 -135 1kHz -148 -143 10kHz -152 -147 100kHz -155 -150 1MHz -155 -150 Environmental Parameters ESD Level: ANSI/ESDA/JEDEC JS-001-2010; HBM Class 2; 2kV to 4kV ANSI/ESDA/JEDEC JS-001-2010; Machine Model Class B 200V to 400V Storage Conditions: Temperature: -55 to 105°C Humidity: 30 to 80% Shock: IEC68-2-27 Test Ea, severity 50A, 50G 11ms half sinewave, 3 times in three mutually perpendicular axis Vibration: IEC 68-2-06 Test Fc, 10G, 0.75mm acceleration, 10Hz to 500Hz, 3 times in three mutually perpendicular axis Compliance RoHS Status (2015/863/EU) REACh Status MSL Rating (JDEC-STD-033): Compliant Compliant Not Applicable Packaging Details Pack Style: Bulk Pack Size: 1 Loose in bulk pack Alternative packing option available Technical Notes Holdover stability 1.5μs in 24hrs ref ±5°C Functional Block Diagram Application Information Sales Office Contact Details: UK: +44 (0)1460 270200 France: 0800 901 383 Germany: 0800 1808 443 USA: +1.760.318.2824 Printed on 4 Sep 21 23:14 using Part Data Sheet V1.0018 Email: info@iqdfrequencyproducts.com Web: www.iqdfrequencyproducts.com Page 3 of 4 OCXO Specification Part No. + Packaging: LFOCXO065520BULK Customer Part: Output Data Word (Format Key: c=Character, d=Numerical Digit, s=Sign) Field No. Name Format Description Length 0 $PDP$ $ccc Message ID, Protocal Header 4 1 No dd Message No 2 2 TxRxFlag d 1 3 CStatus c 4 TrackStatus d 5 cPHDiff sdddd 6 cPWM1 ddddd.dddd 7 cPWM2 ddddd.dddd 8 SYNCNT ddd Transmit and Receive Flag (0 = upper computer transmit, 1 = upper computer receive) Current Status (F = warm up, L = lock, H = holdover) Track status (Q = fast track, S = slow track) Current phase difference, 1 unit = 6.25ns Current PWM1 (Voltage control value1) Current PWM2 (Voltage Controlled Value 2), not used, defult value = 32769.000000 The synchornous times 9 HCNT ddd Power on hours count 3 10 HPAVG ddddd.dddd 10 11 VCH1 ddddd.dddd 12 HPMOD ddddd.dddd The average of the PWM in the last half hour Voltage Controlled compensation value every half hour The Module PWM Value 13 VCM10 ddddd.dddd 10 14 POS d-dd 15 TEMP sdddd.ddd 16 AlarmFlag sdddd Voltage controlled compensation value every 10mins The position of the product. (Layer-No), just for the inner test. The temperature monitor inside the module Only the last 1 byte indicates Alarm flag (0=Normal, 1=OCXO warmup abnormal, 2=OCXOoutput abnormal, 3=Internal temperature sensor abnorm www.IQDFP.com 1 1 5 10 10 3 10 10 4 9 5 17 Website 18 Version d.d version 3 19 Date dddd-dd-dd Date 10 55 2 2 20 21 dd END 13 Sales Office Contact Details: UK: +44 (0)1460 270200 France: 0800 901 383 Germany: 0800 1808 443 USA: +1.760.318.2824 Printed on 4 Sep 21 23:14 using Part Data Sheet V1.0018 Email: info@iqdfrequencyproducts.com Web: www.iqdfrequencyproducts.com Page 4 of 4