A-Crystal Rubidium Clock

A-Crystal Rubidium Clock

The 3.58MHz oscillator is a key component in older analog television systems, such as the NTSC (National Television System Committee) standard used in countries like the United States. In NTSC systems, the 3.58MHz oscillator is used as the color burst frequency for color information synchronization. In video applications, accuracy and stability are crucial to ensure proper color demodulation and synchronization in the television receiver.

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1: Main features

Stable power consumption: less than 20W at normal temperature and less than 25W at low temperature;
Multi-channel output: 2 channels of 10MHz and 1 channel of 5MHz output, to meet the reference input of different equipment;
Lock indication: easy to observe the working status of the rubidium clock;
Phase noise: output low phase noise 10MHz signal;
Parameter customization: independent technology, specific parameters and extended functions can be customized;

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2: Main Indicators

Steady state power consumption
Normal temperature<20W(@25℃),
High temperature<15W(50℃),
Low temperature<25W(-40℃)
Output Signal
2 channels 10MHz, 1 channel 5MHz
Signal Level
2-channel 10MHzVsin output, power ≧8dBm harmonic ≦-40dBc
Signal Level
1 channel 5MHz hcmos
Factory Frequency Accuracy
±5E-11

Frequency Drift Rate
≦5E-11/day
Frequency Stability (Allan Variance)
≦1.5E-10/1s

≦8.0E-11/10s

≦5.0E-11/100s

Output 10MHz Phase Noise (SSB)
≦-95dBc/Hz @10Hz

≦-120dBc/Hz @100Hz

≦-145dBc/Hz @1KHz

≦-150dBc/Hz @10KHz

≦-165dBc/Hz @100KHz

Frequency Temperature Characteristics
≦1E-9(0℃-50℃)

Supply voltage
AC-220V

Power-on characteristics
≦5min lock (@25℃)
External adjustment
Adjustment range: ±2E-8
Analog regulation input voltage: 0V~5V
Operating/Storage Temperature Range
0℃~+50℃/-40℃~+85℃

size
L: 39cm W: 37cm H: 15cm

3: Description
Front Panel:
Voltage and ammeter: Display the working voltage and current of the rubidium clock module.
RUBIDIUM LOCK: The rubidium clock module lock indicator, it will flash and automatically check once when it is turned on, it will be locked within 5 minutes, and the indicator light will be always on.
POWER ON: Indicates the working voltage of the rubidium clock module.
Rear Panel:
10MHz: 2 channels of 10MHz sine wave signal output.
5MHz: 1 channel 5MHz square wave signal output.

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The 3.58MHz oscillator is a key component in older analog television systems, such as the NTSC (National Television System Committee) standard used in countries like the United States. In NTSC systems, the 3.58MHz oscillator is used as the color burst frequency for color information synchronization. In video applications, accuracy and stability are crucial to ensure proper color demodulation and synchronization in the television receiver.

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