125 Series FR125 GPS Synchronous Clock Generator 2111 Comprehensive Drive Aurora, Illinois 60505 Phone: 630- 851- 4722 Fax: 630- 851- 5040 www.conwin.com D A T A S H E E T General Description The FR125 Frequency module is a GPS driven, mixedsignal phase lock loop, generating up to 10.0MHz CMOS and a 10MHz SINE output from an intrinsically low jitter voltage controlled crystal oscillator. The FR125 can lock to a 10MHz reference derived from the onboard GPS receiver or an external 10MHz reference or to an external 1PPS reference. Alarms are provided to indicate Loss-of-Lock, Holdover, and Antenna Fault. The on-board GPS receiver requires an outdoor mounted GPS antenna for the best stability and consistent performance. The mode control inputs are used to manually switch between references and/or holdover. The user application should monitor the alarm outputs and manually switch modes as needed. Serial I/O lines provide access to the NMEA messages from the GPS receiver (referenced in the Connor-Winfield’s Wi125 User Manual. Contact Connor-Winfield Sales for a copy). The serial I/O lines can be used to access GPS timestamp information, or to verify that the receiver has recovered from an alarm condition. The reset is used to reset the GPS receiver (if needed). Features •Phase locked 10.0 MHz output •Available with other output Frequencies (ie: 16.384MHz) •3 selectable references: GPS, External 10MHz or External 1PPS •Holdover •Three alarm outputs. (Loss-of-Lock, Holdover and Antenna Fault) •Serial input and output ports (GPS receiver) •Master reset •+3.3 Volt power supply •Commercial Temp (0-70° C) •Meets ITU-T G.811 Wander Generation Mask •Meets ETSI-PRC Wander Generation Mask (w/ OCXO reference) •MCX GPS Antenna Connection •Available in 016.384M Frequency Output •Fixed Position Unit Bulletin Revision Date Issued By SG157 01 27 May 11 ENG Functional Block Diagram Figure 1 OCXO or TCXO REFERENCE FR125 Module SERIAL OUTPUT (A, B, C) MCX Connector BOOT SEL HOLDOVER STATUS LOCK STATUS ANTENNNA FAULT STATUS Wi125 (GPS Receiver) SERIAL IN (A, B, C) GPS REF 10 MHz REF DPFD 1 PPS REF RESET SYNC 1 CONTROL SYNC 2 CONTROL CPLD ANALOG FILTER LOW JITTER VCXO or OCVCXO 1/N DRIVER 33Ω DISABLE JTAG (Programming Only) DRIVER & TRANSLATION FR125 Data Sheet #: SG157 Page 2 10 MHz CMOS OUTPUT 10 MHz SINE OUTPUT Rev: 01 Date: 05/27/11 © Copyright 2011 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice Typical Application FR125 Module NU Figure 2 FR125 Data Sheet #: SG157 Page 3 Rev: 01 Date: 05/27/11 © Copyright 2011 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice Pin Description Table 1 Pin # Pin Name Description 1 TXC RS-232 communication transmit signal for UART2 (Optional) 2 TXB RS-232 communication transmit signal for UART1 (Optional) 3 TXA RS-232 communication transmit signal for UART0 (Optional) 4 GND 5 RXC RS-232 communication receive signal for UART2 (Optional) 6 RXB RS-232 communication receive signal for UART1 (Optional) 7 RXA RS-232 communication receive signal for UART0 (Optional) 8 *Bootsel 9 10MHz Ref Input 10 *Reset 11 GND 12 1PPS Ref Input 13 GND 14 Antenna Supply Voltage 15 GND 16 VCC1 Supply voltage for GPS timing circuitry. 17 VCC2 Supply voltage for noise clean-up and interfacing circuitry. 18 GND 19 SYNC1 Control Lock mode control signal 1. See Table 4 for functional description. Default state is pulled high internally. 20 SYNC2 Control Lock mode control signal 2. See Table 4 for functional description. Default state is pulled high internally. 21 *Disable 22 Unused 23 Holdover Status 24 Lock Status 25 Antenna Fault Status 26 Unused 27 GND 28 10MHz CMOS Output* 29 Unused 30 Unused 31 GND 32 10MHz SINE Output* Normally HIGH - Only pulled low for RS-232 re-programming of GPS software. Default state is pulled high internally. External LVCMOS 10.0MHz reference (Optional). Default state is pulled high internally. Hardware Reset for the GPS timing circuitry. Pull low to reset. Default state is pulled high internally. External LVCMOS 1PPS reference (Optional). Default state is pulled high internally. Antenna Supply Voltage. Limit continuous current to 45mA Max. Open/High = enabled outputs. Pull low to disable the 10MHz CMOS and SINE outputs. Default state is pulled high internally. High= Unit is in Holdover High= Unit is locked to selected reference. High= A fault has been detected on Pin 14 (Antenna Supply Voltage) 10MHz low jitter CMOS output 10MHz AC coupled low jitter SINE output Note: Other frequencies (ie: 16.384 MHz) available upon request. FR125 Data Sheet #: SG157 Page 4 Rev: 01 Date: 05/27/11 © Copyright 2011 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice Absolute Maximum Rating Table 2 Symbol Parameter Minimum Maximum Units N otes VCC Power Supply Voltage -0.3 3.7 Volts 1 VIN Input Voltage -0.3 4.6 Volts 1 VPREAMP Antenna Supply Voltage 2.7 13.2 Volts 1 TS Storage Temperature -30 80 °C 1 Operating Specifications Table 3 Symbol Parameter Minimum Nominal Maximum Units VCC1 Supply Voltage 1 ICC1 Supply Current 1 with TCXO with OCXO VCC2 Supply Voltage 2 ICC2 Supply Current 2 with VCXO with VCOCXO TO Temperature Range tJTOL tAQ_GPS 3.135 3.3 3.465 V .200 .480 .300 1.2 A A 3.135 3.3 3.465 V 2 .040 .380 .75 1.0 A A 0 70 °C Input Jitter Tolerance 30 ns GPS Input Acquisition Time TCXO OCXO 120 150 sec sec 3 3 tAQ_EXT External Input Acquisition Time VCXO OCVCXO 90 120 sec sec 3 3 4 5 Oscillator Performance PLL Option: FCAP Notes Capture/Pull-in Range VCXO ±50 ppm OCVCXO ±45 ppb FBW Jitter Filter Bandwidth 6 Hz Typ. 0.1 Hz Typ. DC Duty Cycle 45/55% 45/55% RMS RMS Phase Noise 10Hz - 2MHz 12kHz - 2MHz 20 ps Typ. 0.5 ps Typ. 1 ps Typ. 0.6 ps Typ. Holdover/Wander Generation Performance Reference Option: TCXO OCXO TSTA Temperature Stability ±0.5 ppm ±20 ppb VSTA Vcc Stability 0.1 ppm ±5 ppb ADAILY Daily Aging TBD 2 ppb AYEARLY Yearly Aging 2 ppm 80 ppb Wander Generation Specification ITU-T G.811 ETSI-PRC NOTES: 1. Stresses beyond those listed under “Absolute Maximum Rating” may cause permanent damage to the module. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under “Operating Specifications” is not implied. Exposure to absolute maximum rated conditions for extended periods may affect device reliability. 2. Requires external regulation and supply decoupling 3. Cold Power-up 4. Holdover will be re-calculated with each successful lock. Yearly aging represents 1 continous year in Holdover. 5. Relative to 25°C FR125 Data Sheet #: SG157 Page 5 Rev: 01 Date: 05/27/11 © Copyright 2011 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice Mode Control Table Table 4 * Note: Holdover is not supported in this mode; loss of the 10MHz reference will rail the PLL output until the reference returns or another mode is selected. Input And Output Characteristics Table 5 LVCMOS Inputs and Outputs Symbol Parameter Minimum Maximum Units VIH VIL High Level Input Voltage 1.7 4.0 V Low Level Input Voltage -0.5 0.8 V VOH High Level Output Voltage 2.4 V VOL Low Level Output Voltage 0.4 V Notes Sine Output (Pin 32) Symbol Parameter Load Output Power Total Harmonic Distortion Typical 50 9 2.2 Units Notes ohms dBm % GPS Receiver Specifications Table 6 Parameter Specifications Acquisition/Tracking Sensitivity -155dBm/-156dBm Notes Acquisition Time: Hot Start w/ Network Assist Outdoor: <2 sec Indoor(-148dBm) <5 sec Stand Alone Supported Protocols Cold <45 sec Warm: <38 sec Hot: <5 sec Re-acquisition: <1sec (90% confidendce) Network Assist, NMEA 0183 Reset Generation (I/O pin 10 - RESET) The power-on-reset for the FR125 is generated on-board. If it is desired to extend the power-on-reset signal or provide a manual reset of the GPS receiver, pull this signal low. FR125 Data Sheet #: SG157 Page 6 Rev: 01 Date: 05/27/11 © Copyright 2011 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice Antenna Requirements Table 7 Parameter Notes The FTS125 antenna connector is an MCX (female) The antenna supply voltage provided to Pin 14 must be within the range of 2.7 to 13.2V (AMR); the antenna must be able to operate at this voltage The antenna’s continuous current draw must be <=45mA The antenna must have a full sky view for optimal receiver performance An active antenna with a minimum 10dB gain (including cable loss) should be used Standard 125 Series models are designed for fixed position operation only. Contact Connor-Winfield Sales for mobile application model offerings Phase Noise Figure 2 Phase Noise: Offset Frequency (Hz) COO (dBc/Hz) CTV (dBc/Hz) 10 -105 -70 100 -132 -105 1k -145 -135 10k -150 -145 100k -152 -152 1M -154 -158 FR125 Data Sheet #: SG157 Page 7 Rev: 01 Date: 05/27/11 © Copyright 2011 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice Allan Variance – CTV Figure 3 Allan Variance – COO Figure 4 FR125 Data Sheet #: SG157 Page 8 Rev: 01 Date: 05/27/11 © Copyright 2011 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice Wander Generation Plot – CTV versus G.811 Wander Generation Mask Figure 5 100,000 10,000 MTIE (ns) 1,000 100 10 1 0.01 0.10 1.00 10.00 100.00 1,000.00 10,000.00 100,000.00 1,000,000.00 Observation Interval (sec) Wander Generation Plot – COO versus ETSI-PRC Wander Generation Mask Figure 6 10000 MTIE (ns) 1000 100 10 1 0.1 1 10 100 1000 Observation Interval (sec) FR125 Data Sheet #: SG157 Page 9 Rev: 01 Date: 05/27/11 © Copyright 2011 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice 10000 100000 Soldering and Cleaning Recommendations Hand solder, leaded wave solder, and lead-free wave solder processes are recommended for attaching the FR125 after reflow processes are complete. Since the FR125 does not have hermetic enclosure, hand cleaning the leads is recommended and the module should not be completely immersed. Package Dimensions Figure 7 Recommended Footprint Dimensions Figure 8 0.038" Hole Thru All x32 0.065" Pad x32 FR125 Dimensions and Keepout Area Top View FR125 Data Sheet #: SG157 Page 10 Rev: 01 Date: 05/27/11 © Copyright 2011 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice Ordering Information Ex: FR125-COO-010.0MHz FR125 C Temp Range O Wi125 Reference O PLL Oscillator C = 0-70degC O = OCXO O = OCVCXO * T = TCXO V = VCXO * CTO Option is not available ** Other output frequencies (ie: 16.384MHz) available upon request. FR125 Data Sheet #: SG157 Page 11 Rev: 01 Date: 05/27/11 © Copyright 2011 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice 10.0M Output Frequency** 2111 Comprehensive Drive Aurora, Illinois 60505 Phone: 630- 851- 4722 Fax: 630- 851- 5040 www.conwin.com Revision Date Note A00 A01 P00 P01 P02 P03 P04 P05 P06 P07 00 01 2/27/08 6/19/08 8/19/08 8/26/08 9/12/08 11/13/08 12/03/08 11/05/09 12/10/09 01/08/10 06/16/10 05/27/11 Advance Informational Release Temperature Range Edit Edit to Preliminary from Advanced Edits to temperature Indoor Temp Revision Updated Block Diagram MCX Info added & Block Diagram Update New Frequency Output Antenna Requirements & Typical App Drawing Fixed Unit Clarification & GPS Reference Information 125 Series Update and revised to release Updated Block Diagram to Wi125 Receiver & Soldering Recommendations