DATASHEET Quantum SA.45s CSAC ™ Chip Scale Atomic Clock Key Features • Power consumption <120 mW •Less than 17 cc volume, 1.6” x 1.39” x 0.45” •10 MHz CMOS-compatible output •1 PPS output and 1 PPS input for synchronization •RS-232 interface for monitoring and control •Short term stability (Allan Deviation) of 2.5E-10@ TAU =1 sec Applications* • Underwater sensor systems •GPS receivers •Backpack radios •Anti-IED jamming systems •Autonomous sensor networks •Unmanned vehicles With an extremely low power consumption of <120 mW and a volume of <17 cc, the Microsemi® SA.45s Chip Scale Atomic Clock (CSAC) brings the accuracy and stability of an atomic clock to portable applications for the first time. The SA.45s provides 10 MHz and 1 PPS outputs at standard CMOS levels, with short-term stability (Allan Deviation) of 2.5E-10 @ TAU =1 sec, long-term aging of <9E-10/month, and maximum frequency change of 5E-10 over an operating temperature range of -10°C to +35°C. The SA.45s CSAC accepts a 1 PPS input that may be used to synchronize the unit’s 1 PPS output to an external reference clock with ±100 ns accuracy. The CSAC can also use the 1 PPS input to discipline its phase and frequency to within 1 ns and 1.0E-12, respectively. A standard CMOS-level RS-232 serial interface is built in to the SA.45s. This is used to control and calibrate the unit and also to provide a comprehensive set of status monitors. The interface is also used to set and read the CSAC’s internal timeof-day clock. *The Chip Scale Atomic Clock is not tested, qualified, and rated for space applications. Microsemi invented portable atomic timekeeping with QUANTUM™, the worldʼs first family of miniature and chip scale atomic clocks. Choose QUANTUM™ class for best-in-class stability, Size, Weight and Power consumption (SWAP). Page 1 of 7 DATASHEET Quantum™ SA.45s CSAC Options to Meet a Wider Range of Applications The standard SA.45s CSAC option 001 provides an output frequency of 10MHz. However, other output frequencies are available: option 003 provides 16.384 MHz, and option 004 provides 10.24 MHz and option 006 provides a 5 MHz output. For other output frequencies please contact Microsemi for details. The Chip Scale Atomic Clock is not tested, qualified, and rated for space applications. Mechanical Interface PIN NO. I.D. 1 Tune 2 N/A 3 N/A 4 BITE 5 Tx 6 Rx 7 Vcc 8 GND 1 PPS IN 9 10 1 PPS OUT 11 N/A 12 10 MHz OUT Bottom View Page 2 of 7 DATASHEET Quantum™ SA.45s CSAC Option 001 Part number 090-00218-001 Specifications All specifications at 25°C, Vcc =3.3V DC unless otherwise specified ELECTRICAL SPECIFICATIONS RF Output - Frequency: - Format: - Amplitude: - Load impedance: - Quantity: 10 MHz CMOS 0V to Vcc 1 MΩ 1 1 PPS Output - Rise/fall time (10%-90%) at load capacitance 10pF: <10 ns - Pulse width: 100 µs - Level: 0V to Vcc - Logic High (VoH) min: 2.80 V - Logic Low (VoL) max: 0.30 V - Load impedance: 1 MΩ - Quantity: 1 1 PPS Input - Format: - Low level: - High level: - Input impedance: - Quantity: Rising edge <0.5 V 2.5 V to Vcc 1 MΩ 1 Serial Communications - Protocol: - Format: - Tx/Rx impedance: - Baud rate: RS232 CMOS 0V to Vcc 1 MΩ 57600 Built-in Test Equipment (BITE) output - Format: CMOS 0V to Vcc - Load impedance: 1 MΩ - Logic: 0 = Normal operation 1 = Alarm Power Input - Operating: - Warmup: - Input voltage (Vcc): <120 mW <140 mW 3.3 ± 0.1 VDC PHYSICAL SPECIFICATIONS - Size: - Weight: - MTBF: 1.6” x 1.39” x 0.45” <35 g >100,000 hours ENVIRONMENTAL SPECIFICATIONS Operating: - Operating temperature: - Maximum frequency change over operating temp range (max. rate of change 0.5 °C/minute): - Frequency change over allowable input voltage range: -10°C to +35°C ±5x10-10 ±4x10-10 .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ENVIRONMENTAL SPECIFICATIONS (Continued) - Magnetic sensitivity (≤2.0 Gauss): ±9x10-11/Gauss - Radiated emissions. Compliant to FCC part 15, Class B, when mounted properly onto host PCB. - Vibration: Maintains lock under MIL-STD-810, Method 514.5, Procedure 1, 7.7 grms - Humidity: 0 to 95% RH per MIL-STD-810, Method 507.4. Storage and Transport (non-operating): - Temperature: -55°C to +40°C - Shock (1 ms half-sine): 1000 g - Vibration: MIL-STD-810, Method 514.5, Procedure 1, 7.7 grms PERFORMANCE PARAMETERS Stability (Allan Deviation) ADEV TAU = 1 sec TAU = 10 sec TAU = 100 sec TAU = 1000 sec 2.5x10-10 8x10-11 2.5x10-11 8x10-12 RF Output Phase Noise (SSB) 1 Hz 10 Hz 100 Hz 1000 Hz 10000 Hz 100,000 Hz <-50 dBc/Hz <-70 dBc/Hz <-113 dBc/Hz <-128 dBc/Hz <-135 dBc/Hz <-140 dBc/Hz Frequency Accuracy - Maximum offset at shipment: ±5x10-11 - Maximum retrace (48 hrs off): ±5x10-10 - Aging, monthly*: <9x10-10 typical - Aging, yearly*: <1x10-8 typical - 1 PPS Sync.: ±100 ns (*After 30 days of continuous operation) Digital Tuning - Range: - Resolution: ±2x10-8 1x10-12 Analog Tuning - Range: - Resolution: - Input: ±2.2x10-8 1x10-11 0-2.5V into 100 kΩ Warm-up Time <180 s Solder Hand solder using 63/37 Tin/Lead Solder with maximum soldering tip of 329°C (625°F) Page 3 of 7 DATASHEET Quantum™ SA.45s CSAC Option 003 Part number 090-00218-003 Specifications All specifications at 25°C, Vcc =3.3V DC unless otherwise specified ELECTRICAL SPECIFICATIONS RF Output - Frequency: 16.384 MHz - Format: CMOS - Amplitude: 0V to Vcc - Load impedance: 1 MΩ - Quantity: 1 1 PPS Output - Rise/fall time (10%-90%) at load capacitance 10pF: <10 ns - Pulse width: 97.656 μs - Level: 0V to Vcc - Logic High (VOH) min: 2.80 V - Logic Low (VOL) max: 0.30 V - Load impedance: 1 MΩ - Quantity: 1 1 PPS Input - Format: Rising edge - Low level: <0.5 V - High level: 2.5 V to Vcc - Input impedance: 1 MΩ - Quantity: 1 Serial Communications - Protocol: RS-232 - Format: CMOS 0V to Vcc - Tx/Rx impedance: 1 MΩ - Baud rate: 57600 Built-in Test Equipment (BITE) output - Format: CMOS 0V to Vcc - Load impedance: 1 MΩ - Logic: 0 = Normal operation 1 = Alarm Power Input - Operating: <120 mW - Warmup: <140 mW - Input Voltage (Vcc): 3.3 ± 0.1 VDC PHYSICAL SPECIFICATIONS - Size: 1.6” x 1.39” x 0.45” - Weight: <35 g - MTBF: >100,000 hours ENVIRONMENTAL SPECIFICATIONS Operating: - Operating temperature: -10°C to +35°C - Maximum frequency change over operating temp range (max. rate of change 0.5°C/minute): ±5x10-10 - Frequency change over allowable input voltage range: ±4x10-10 .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . ENVIRONMENTAL SPECIFICATIONS (Continued) - Magnetic sensitivity (≤2.0 Gauss): ±9x10-11/Gauss - Radiated emissions: Compliant to FCC part 15, Class B, when mounted properly onto host PCB - Vibration: - Humidity: Maintains lock under MIL-STD-810, method 514.5, procedure 1, 7.7 grms 0 to 95% RH per MILSTD-810, method 507.4 Storage and Transport (non-operating): - Temperature: -55°C to +40°C - Shock (1 ms half-sine): 1000 g - Vibration: MIL-STD-810, method 514.5, procedure 1, 7.7 grms PERFORMANCE PARAMETERS Stability (Allan Deviation) ADEV TAU = 1 sec TAU = 10 sec TAU = 100 sec TAU = 1000 sec 2.5x10-10 8x10-11 2.5x10-11 8x10-12 RF Output Phase Noise (SSB) 1 Hz 10 Hz 100 Hz 1000 Hz 10000 Hz 100,000 Hz <-46 dBc/Hz <-66 dBc/Hz <-110 dBc/Hz <-128 dBc/Hz <-135 dBc/Hz <-140 dBc/Hz Frequency Accuracy - Maximum offset at shipment: ±5x10-11 - Maximum retrace (48 hrs off): ±5x10-10 - Aging, monthly*: <9x10-10 typical - Aging, yearly*: <1x10-8 typical - 1 PPS Sync.: ±100 ns (*After 30 days of continuous operation) Digital Tuning - Range: - Resolution: ±2x10-8 1x10-12 Analog Tuning - Range: - Resolution: - Input: ±2.2x10-8 1x10-11 0-2.5V into 100 kΩ Warm-up Time <180 s Solder Hand solder using 63/37 Tin/Lead Solder with maximum soldering tip of 329°C (625°F) Page 4 of 7 DATASHEET Quantum™ SA.45s CSAC Option 004 Part number 090-00218-004 Specifications All specifications at 25°C, Vcc =3.3V DC unless otherwise specified ELECTRICAL SPECIFICATIONS RF Output - Frequency: 10.24 MHz - Format: CMOS - Amplitude: 0V to Vcc - Load impedance: 1 MΩ - Quantity: 1 1 PPS Output - Rise/fall time (10%-90%) at load capacitance 10pF: <10 ns - Pulse width: 100 μs - Level: 0V to Vcc - Logic High (VOH) min: 2.80 V - Logic Low (VOL) max: 0.30 V - Load impedance: 1 MΩ - Quantity: 1 1 PPS Input - Format: Rising edge - Low level: <0.5 V - High level: 2.5 V to Vcc - Input impedance: 1 MΩ - Quantity: 1 Serial Communications - Protocol: RS-232 - Format: CMOS 0V to Vcc - Tx/Rx impedance: 1 MΩ - Baud rate: 57600 Built-in Test Equipment (BITE) output - Format: CMOS 0V to Vcc - Load impedance: 1 MΩ - Logic: 0 = Normal operation 1 = Alarm Power Input - Operating: <120 mW - Warmup: <140 mW - Input Voltage (Vcc): 3.3 ± 0.1 VDC PHYSICAL SPECIFICATIONS - Size: 1.6” x 1.39” x 0.45” - Weight: <35 g - MTBF: >100,000 hours ENVIRONMENTAL SPECIFICATIONS Operating: - Operating temperature: -10°C to +35°C - Maximum frequency change over operating temp range (max. rate of change 0.5°C/minute): ±5x10-10 - Frequency change over allowable input voltage range: ±4x10-10 .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . ENVIRONMENTAL SPECIFICATIONS (Continued) - Magnetic sensitivity (≤2.0 Gauss): ±9x10-11/Gauss - Radiated emissions: Compliant to FCC part 15, Class B, when mounted properly onto host PCB - Vibration: - Humidity: Maintains lock under MIL-STD-810, method 514.5, procedure 1, 7.7 grms 0 to 95% RH per MILSTD-810, method 507.4 Storage and Transport (non-operating): - Temperature: -55°C to +40°C - Shock (1 ms half-sine): 1000 g - Vibration: MIL-STD-810, method 514.5, procedure 1, 7.7 grms PERFORMANCE PARAMETERS Stability (Allan Deviation) ADEV TAU = 1 sec TAU = 10 sec TAU = 100 sec TAU = 1000 sec 2.5x10-10 8x10-11 2.5x10-11 8x10-12 RF Output Phase Noise (SSB) 1 Hz 10 Hz 100 Hz 1000 Hz 10000 Hz 100,000 Hz <-50 dBc/Hz <-70 dBc/Hz <-113 dBc/Hz <-128 dBc/Hz <-135 dBc/Hz <-140 dBc/Hz Frequency Accuracy - Maximum offset at shipment: ±5x10-11 - Maximum retrace (48 hrs off): ±5x10-10 - Aging, monthly*: <9x10-10 typical - Aging, yearly*: <1x10-8 typical - 1 PPS Sync.: ±100 ns (*After 30 days of continuous operation) Digital Tuning - Range: - Resolution: ±2x10-8 1x10-12 Analog Tuning - Range: - Resolution: - Input: ±2.2x10-8 1x10-11 0-2.5V into 100 kΩ Warm-up Time <180 s Solder Hand solder using 63/37 Tin/Lead Solder with maximum soldering tip of 329°C (625°F) Page 5 of 7 DATASHEET Quantum™ SA.45s CSAC Option 006 Part number 090-00218-006 Specifications All specifications at 25°C, Vcc =3.3V DC unless otherwise specified ELECTRICAL SPECIFICATIONS RF Outptut - Frequency: 5 MHz - Format: CMOS - Amplitude: 0V to Vcc - Load impedance: 1 MΩ - Quantity: 1 1 PPS Output - Rise/fall time (10%-90%) at load capacitance 10pF: <10 ns - Pulse width: 100 μs - Level: 0V to Vcc - Logic High (VOH) min: 2.80 V - Logic Low (VOL) max: 0.30 V - Load impedance: 1 MΩ - Quantity: 1 1 PPS Input - Format: Rising edge - Low level: <0.5 V - High level: 2.5 V to Vcc - Input impedance: 1 MΩ - Quantity: 1 Serial Communications - Protocol: RS-232 - Format: CMOS 0V to Vcc - Tx/Rx impedance: 1 MΩ - Baud rate: 57600 Built-in Test Equipment (BITE) output - Format: CMOS 0V to Vcc - Load impedance: 1 MΩ - Logic: 0 = Normal operation 1 = Alarm Power Input - Operating: <120 mW - Warmup: <140 mW - Input Voltage (Vcc): 3.3 ± 0.1 VDC PHYSICAL SPECIFICATIONS - Size: 1.6” x 1.39” x 0.45” - Weight: <35 g - MTBF: >100,000 hours ENVIRONMENTAL SPECIFICATIONS Operating: - Operating temperature: -10°C to +35°C - Maximum frequency change over operating temp range (max. rate of change 0.5°C/minute): ±5x10-10 - Frequency change over allowable input voltage range: ±4x10-10 .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . ENVIRONMENTAL SPECIFICATIONS (Continued) - Magnetic sensitivity (≤2.0 Gauss): ±9x10-11/Gauss - Radiated emissions: Compliant to FCC part 15, Class B, when mounted properly onto host PCB - Vibration: - Humidity: Maintains lock under MIL-STD-810, method 514.5, procedure 1, 7.7 grms 0 to 95% RH per MILSTD-810, method 507.4 Storage and Transport (non-operating): - Temperature: -55°C to +40°C - Shock (1 ms half-sine): 1000 g - Vibration: MIL-STD-810, method 514.5, procedure 1, 7.7 grms PERFORMANCE PARAMETERS Stability (Allan Deviation) ADEV TAU = 1 sec TAU = 10 sec TAU = 100 sec TAU = 1000 sec 2.5x10-10 8x10-11 2.5x10-11 8x10-12 RF Output Phase Noise (SSB) 1 Hz 10 Hz 100 Hz 1000 Hz 10000 Hz 100,000 Hz <-53 dBc/Hz <-73 dBc/Hz <-116 dBc/Hz <-131 dBc/Hz <-138 dBc/Hz <-140 dBc/Hz Frequency Accuracy - Maximum offset at shipment: ±5x10-11 - Maximum retrace (48 hrs off): ±5x10-10 - Aging, monthly*: <9x10-10 typical - Aging, yearly*: <1x10-8 typical - 1 PPS Sync.: ±100 ns (*After 30 days of continuous operation) Digital Tuning - Range: - Resolution: ±2x10-8 1x10-12 Analog Tuning - Range: - Resolution: - Input: ±2.2x10-8 1x10-11 0-2.5V into 100 kΩ Warm-up Time <180 s Solder Hand solder using 63/37 Tin/Lead Solder with maximum soldering tip of 329°C (625°F) Page 6 of 7 Microsemi Corporate Headquarters One Enterprise, Aliso Viejo, CA 92656 USA Microsemi Corporation (Nasdaq: MSCC) offers a comprehensive portfolio of semiconductor and system solutions for communications, defense & security, aerospace and industrial markets. Products include high-performance and radiation-hardened analog mixed-signal integrated circuits, FPGAs, SoCs and ASICs; power management products; timing and synchronization devices and precise time solutions, setting the world’s standard for time; voice processing devices; RF solutions; discrete components; security technologies and scalable anti-tamper products; Ethernet Solutions; Power-over-Ethernet ICs and midspans; as well as custom design capabilities and services. Microsemi is headquartered in Aliso Viejo, Calif., and has approximately 3,600 employees globally. Learn more at www.microsemi.com. Microsemi makes no warranty, representation, or guarantee regarding the information contained herein or the suitability of its products and services for any particular purpose, nor does Microsemi assume any liability whatsoever arising out of the application or use of any product or circuit. The products sold hereunder and any other products sold by Microsemi have been subject to limited testing and should not be used in conjunction Within the USA: +1 (800) 713-4113 Outside the USA: +1 (949) 380-6100 with mission-critical equipment or applications. Any performance specifications are believed to be reliable Sales: +1 (949) 380-6136 but are not verified, and Buyer must conduct and complete all performance and other testing of the products, Fax: +1 (949) 215-4996 alone and together with, or installed in, any end-products. Buyer shall not rely on any data and performance specifications or parameters provided by Microsemi. It is the Buyer's responsibility to independently determine E-mail: [email protected] suitability of any products and to test and verify the same. The information provided by Microsemi hereunder is provided "as is, where is" and with all faults, and the entire risk associated with such information is entirely © 2015 Microsemi Corporation. All with the Buyer. Microsemi does not grant, explicitly or implicitly, to any party any patent rights, licenses, or rights reserved. Microsemi and the any other IP rights, whether with regard to such information itself or anything described by such information. Microsemi logo are trademarks of Microsemi Corporation. All other Information provided in this document is proprietary to Microsemi, and Microsemi reserves the right to make trademarks and service marks are the any changes to the information in this document or to any products and services at any time without notice. property of their respective owners. DS/SA.45s CSAC/102815 900 00331 000J