Datasheet

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 ..
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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
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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
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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
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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
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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
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