PLOD260 Digital Phase-Locked Thermostatic Oscillator

Thermostat Crystal Oscillators

The PLOD260 is a high-performance phase-locked crystal oscillator (PLOD260) with three 10MHz outputs and one customizable low-phase-noise 5MHz output in a standard BDSTAR TIME form factor. It integrates a high-performance oven-controlled crystal oscillator (OCR) and a fully digital phase-locked loop (PLL). It supports a 10MHz input and has a bandwidth adjustable from 4MHz to 512MHz via RS-232. It is ideal for optimizing the phase noise and short-term stability of rubidium and cesium clocks.

Thermostat Crystal Oscillators

Important Features

Full digital phase-locked loop, built-in high stability and low phase noise constant temperature crystal oscillator
Standard construction, height 19mm, stackable mounting
Ultra-low phase-noise output: -140 dBc / Hz@10Hz
+12~+15VDC power supply
3 way 10M output and optional 1 way 5M output

Important Features

Test Item	Condition	Technical Indicators

Input frequency		1-way 10 MHz
Input power range		5dBm~15dBm
Input accuracy		±2×10-⁷
Output frequency		3-way 10MHz , 1-way 5MHz
Digital phase-locked bandwidth		4 mHz ~ 512 mHz can be set
Output frequency stability	1s	≦5×10-¹³
10MHz Phase noise dBc/Hz		standard	OptionB1	OptionB2
	1Hz	≦-105	≦-115	≦-118
	10Hz	≦-135	≦-142	≦-145
	100Hz	≦-155	≦-155	≦-155
	1kHz	≦-160	≦-160	≦-160
	10kHz	≦-160	≦-160	≦-160
	100kHz	≦-160	≦-160	≦-160
5MHz【optional】Phase noise dBc/Hz
	1Hz	≦-111*
	10Hz	≦-141
	100Hz	≦-161
	1kHz	≦-166
	10kHz	≦-166
	100kHz	≦-166
Working temperature		-20℃~+70℃
Storage temperature		-55℃~+125℃
power supply		+12V~+15V
Power-on current		≦0.8A
Steady-state current		≦0.5A
Body size		138mm×86mm×19mm

Typical phase noise

Frequency stability typical value

产品型号一览表

特点参数		T710	T760	T640	T770	TRA85	TRS75	TCA55	TRM60	CX5228	CX910
外同步输入	GNSS	✓	✓	✓	✓	—	—	—	—	—	—
	1PPS	✓	—	—	✓	✓	✓	✓	✓	—	—
	10MHz	—	—	—	✓	—	—	—	—	—	—
频率输出	10MHz正弦波	8路	4路	4路	5路	1-way	1-way	—	—	1-way	4路
	10MHz方波	6路	—	—	—	—	—	1-way	1-way	—	—
	可选	1/5MHz	100MHz	100MHz	5/100MHz	—	—	—	—	—	—
		—	NTP	IRIG-B	—	—	—	—	—	—	—
Stability	1s	<3E-12	<5E-12	<3E-12	≤4E-13	≤ 3×10⁻¹²	≤ 6×10⁻¹²	≤ 8×10⁻¹¹	≤ 3×10⁻¹¹	≤ 1.5×10⁻¹³	≤ 1.1×10⁻¹³
	10s	<3E-12	<5E-12	<3E-12	≤3E-13	≤ 1.5×10⁻¹²	≤ 2×10⁻¹²	≤ 2.5×10⁻¹¹	≤ 1×10⁻¹¹	≤2×10-¹³	≤2×10-¹³
	100s	<3E-13	<5E-13	<5E-12	≤7E-14	≤ 5×10⁻¹³	≤ 6×10⁻¹³	≤ 8×10⁻¹²	≤ 3×10⁻¹²	≤4×10⁻¹³	≤5×10-¹³
	日(GNSS锁定)	<1E-12	<1E-12	<1E-12	≤3E-14	—	—	—	—	—	—
Phase noise	1Hz	≤-95dBc/Hz	≤-95dBc/Hz	≤-100dBc/Hz	≤-120dBc/Hz	≤ -95dBc/Hz	≤ -85dBc/Hz	≤ -50dBc/Hz	≤ -85dBc/Hz	≤ -123	-126*
	10Hz	≤-130dBc/Hz	≤-130dBc/Hz	≤-130dBc/Hz	≤-140dBc/Hz	≤ -130dBc/Hz	≤ -120dBc/Hz	≤ -80dBc/Hz	≤ -120dBc/Hz	≤ -145	≤ -148
	100Hz	≤-145dBc/Hz	≤-145dBc/Hz	≤-145dBc/Hz	≤-155dBc/Hz	≤ -150dBc/Hz	≤ -145dBc/Hz	≤ -115dBc/Hz	≤ -140dBc/Hz	≤ -155	≤ -155
	1kHz	≤-155dBc/Hz	≤-155dBc/Hz	≤-160dBc/Hz	≤-160dBc/Hz	≤ -160dBc/Hz	≤ -150dBc/Hz	≤ -130dBc/Hz	≤ -140dBc/Hz	≤ -160	≤ -160
	10kHz	≤-158dBc/Hz	≤-158dBc/Hz	≤-160dBc/Hz	≤-160dBc/Hz	≤ -160dBc/Hz	≤ -155dBc/Hz	≤ -140dBc/Hz	≤ -145dBc/Hz	≤ -165	≤ -163
distortion	Harmonic	≤-45dBc	≤-45dBc	≤-45dBc	—	≤ -30dBc	≤ -30dBc	—	≤ -80dBc	≤ -40dBc	≤ -40dBc
	Non-harmonic	≤-80dBc	≤-80dBc	≤-80dBc	—	≤ -80dBc	≤ -70dBc	—	—	≤ -80dBc	≤ -80dBc
Pulse output	Number of way	4	4	4	4	1	1	1	1	—	—
	Synchronization accuracy	20ns	20ns	20ns	10ns	—	—	—	—	—	—
Frequency drift rate	/day	—	—	—	—	±5×10⁻¹³	±1×10⁻¹²	≤3×10-¹¹¹	±3×10⁻¹²	≤3×10-¹⁰	≤1×10-¹⁰
物理电气特性	Working temperature	-10℃~+55℃	-10℃~+55℃	-10℃~+55℃	-10℃~+55℃	-40℃~+65℃	-40℃~+65℃	-40℃~+85℃	-40℃~+75℃	-20℃~+70℃	0℃~+40℃
	存健温度	-45℃~+85℃	-45℃~+85℃	-45℃~+75℃	-55℃-+85℃	-40℃~+85℃	-40℃~+85℃	-55℃~+125℃	-55℃~+100℃	-40℃~+85℃	-55℃~+125℃
	power supply	220V±20%	220V±20%	220V±20%	220V±20%	+12V~+15V或+24V	+12V~+15V,±4%	+3.3V±5%	+5V±4%	+12VDC	+14~+125℃
	Rate of work	50W	60W	60W	预热70W,稳态≤30W	预热≤45W,稳态≤15W	预热≤28.5W,稳态≤14.5W	预热≤10W,稳态≤1.8W	预热≤15W,稳态≤8W	≤7.2W	≤27W
	External Dimension	2U半宽	2U	2U	2U	116mm×79mm×38mm	68mm×68mm×18mm	41mm×36mm×17mm	51mm×51mm×18mm	50mm×50mm×19mm	5inch×3inch×3inch
	Weight	2Kg	5Kg	3.5Kg	5kg	≤500g	≤300g	≤50g	<100g	—	—
驯服及守时	After 24h of synchronization	200ns	200ns	10us	30ns(同步20d后)	同步24h后≤1us	≤1us	—	≤1us	—	—

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