Product overview
SA.3XmIt is the smallest rubidium atomic oscillator in the industry. The size of the oscillator is as large as the popular 50x50 constant temperature crystal oscillator. The pin is fully compatible with the pin definition of the constant temperature crystal oscillator. Users can easily upgrade to rubidium atomic oscillator without considering the pin and size.
Product function
1) It provides a standard 10MHz sine signal.
2) Synchronous 1 PPS input / output;

3) RS-232Management control interface.
Product characteristics
A) High precision rubidium atomic oscillator;
B) Ultra small package: 51mm*51mm;
C) Standard quartz oscillator pin;
D) Low power loss.
Typical application
1) This product is suitable for remote communication applications such as CDMA, WCDMA, TD-SCDMA and other remote unattended base stations or mobile base stations.
2) DVBOr WiMAX and other areas requiring higher price and index;
3) It is suitable for all kinds of telecommunication and transmission applications.
Technical index
|
| SA.35m | SA.33m | SA.31m |
RF output | frequency | 10MHz | 10MHz | 10MHz |
level | ACMOS | ACMOS | ACMOS |
Logic level | VL < 0.5V Vh > 2.7V | VL < 0.5V Vh > 2.7V | VL < 0.5V Vh > 2.7V |
Range | 3.3V | 3.3V | 3.3V |
Rising edge | < 10ns | < 10ns | < 10ns |
load | 15pF | 15pF | 15pF |
Routes | 1 way | 1 way | 1 way |
serial communication | Interface protocol | RS232 | RS232 | RS232 |
Power input | Power waste | < 14W (boot) < 5W (work) | < 14W (boot) < 5W (work) | < 14W (boot) < 5W (work) |
input voltage | 5 + 0.1VDC | 5 + 0.1VDC | 5 + 0.1VDC |
Current (max) | < 2.8A | < 2.8A | < 2.8A |
Physical size | size | 18x 51 x 51mm | 18x 51 x 51mm | 18x 51 x 51mm |
weight | < 85g | < 85g | < 85g |
MTBF | More than 17 years | More than 17 years | More than 17 years |
Electrical characteristics | working temperature | -10 C ~ + 5% C | -10 C ~ + 5% C | -10 C ~ + 5% C |
Frequency change (0 ~ + 70%) | Less than 7E-11 | Less than 1E-10 | Less than 7E-10 |
Frequency change (-10 C ~ + 70 C) | Less than 1E-10 | Less than 1.5E-10 | Less than 1E-9 |
Frequency change (5V + 0.1V) | Less than 2E-11 | Less than 2E-11 | Less than 2E-11 |
Storage temperature | -55 centigrade + 100 degrees centigrade. | -55 centigrade + 100 degrees centigrade. | -55 centigrade + 100 degrees centigrade. |
performance parameter | Short steady | Less than 3E-11/1s Less than 1.6E-11/10s Less than 8E-12/100s | Less than 3E-11/1s Less than 1.6E-11/10s Less than 8E-12/100s | Less than 5E-11/1s Less than 2.5E-11/10s Less than 1E-11/100s |
Phase noise | Less than -70dBc/Hz (1Hz) Less than -87dBc/Hz (10Hz) Less than -114dBc/Hz (100Hz) Less than -130dBc/Hz (1KHz) Less than -140dBc/Hz (10KHz) | Less than -70dBc/Hz (1Hz) Less than -87dBc/Hz (10Hz) Less than -114dBc/Hz (100Hz) Less than -130dBc/Hz (1KHz) Less than -140dBc/Hz (10KHz) | Less than -65dBc/Hz (1Hz) Less than -85dBc/Hz (10Hz) Less than -112dBc/Hz (100Hz) Less than -130dBc/Hz (1KHz) Less than -140dBc/Hz (10KHz) |
stray | Less than -85dBc | Less than -85dBc | Less than -85dBc |
Accuracy (factory settings) | + 5E-11 | + 5E-11 | + 5E-11 |
Reproducibility (24 hours) | + 5E-11 | + 5E-11 | + 5E-11 |
Time drift (24 hours, 0 degrees Celsius + 60 degrees Celsius) | < 7 S | < 7 S | nothing |
Aging rate | Less than 2.5E-11/ days Less than 1E-10/ months Less than 1E-9/ years | Less than 2.5E-11/ days Less than 1E-10/ months Less than 1E-9/ years | Less than 5E-11/ days Less than 3E-10/ months Less than 1.5E-9/ years |
Analog regulation | Range | + 1E-6 | + 1E-6 | + 1E-6 |
Minimum step | 1E-12 | 1E-12 | 1E-12 |
Analog regulation | Range | + 1.5E-9 | + 1.5E-9 | + 1.5E-9 |
Minimum step | 1E-11 | 1E-11 | 1E-11 |
input voltage | 0 ~ 5V | 0 ~ 5V | 0 ~ 5V |
Preheating time |
| < 1E-9, @25 centigrade is 7.5 minutes. | < 1E-9, @25 centigrade is 7.5 minutes. | < 1E-9, @25 centigrade is 7.5 minutes. |
Installation dimensions:

