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Raltron Electronics

OSCILLATORS FOR IEEE – 1588 SOLUTIONS

the IEEE-1588 Telecordia GR1244 Conditions

Raltron’s Oscillators (some ex) optimized for IEEE-1588 Telecommunications Applications

Parameter	TX235	TX257	OX1100	OX2100	OX3100	OX4100
Application	Stratum 3	Stratum 3	Stratum 3	Stratum 3	Stratum 3E	Master clock - PRS
Package	3.2x5mm	5x7mm	9x14mm	13x20mm	36x27mm	50x50mm
Frequencies(MHz)	20.000, 24.576, 49.152	20.000, 24.576, 49.152	20.000, 24.576, 49.152, 98.304	20.000, 24.576, 49.152, 98.304	20.000, 24.576, 49.152, 98.304	20.000, 24.576, 49.152, 98.304
Stability/Holdover	≤280ppb	≤280ppb	≤280ppb	≤280ppb	≤10ppb	≤0.5ppb
Jitter	< 0.85ps@24.576 MHz < 0.8ps@49.152 MHz	<0.35ps@49.152MHz	<0.29ps@49.152MHz	<0.29ps@49.152MHz	<0.37ps@10.000MHz	<0.70ps@20.000MHz
Loop BW	100mHz	100mHz	10mHz	10mHz	1mHz	0.5mHz

MTIE [ns]
0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2
3	3	2	2	1.5	1.5	1.5	1
15	15	12	12	10	10	10	8
20	20	20	20	15	15	15	12

TDEV [ns]
0.02	0.02	0.02	0.02	0.01	0.01	0.01	0.01
0.25	0.25	0.15	0.15	0.05	0.05	0.05	0.05
2	2	1.6	1.6	1	0.9	0.9	0.8
6	6	5	5	4	3.7	3.6	3.5

MTIE and TDEV per GR-1244

CO43/CO46

Clocks designed for packet based implementation

Parameter	Condition	Value	Unit
Frequency		245.0/50.0/98.308/125.0	MHz
Package Size		7.0 x 5.0	mm
Output Type		LVCMOS
Supply Voltage		2.5,3.3	V
Operating Temperature Range		-20 – 70, -40 – 85	C
Stability		25	ppm
Jitter (12kHz to 20MHz)	@25.0 MHz	0.085	ps
	@50.0 MHz	0.08
	@125.0 MHz	0.05

TX257

TCXO or VCTCXO designed for use in Stratum 3 telecom and PTP/IEEE-1588 applications as reference oscillator source

Parameter	Condition	Value		Unit
Frequency		10.0 – 50.0		MHz
Package Size		7.0 x 5.0		mm
Output Type		LVCMOS or Clipped Sine-wave
Supply Voltage		3.3, 5.0		V
Operating Temperature Range		-20 – 70, -40 – 85		C
Frequency Stability		±0.28		ppm
Jitter (12kHz to 20MHz)	@24.576 MHz	< 0.39		ps
Jitter (12kHz to 20MHz)	@49.152 MHz	< 0.35		ps
Wander as per GR-1244 (100 MHz loop BW)
	1s	10s	100s	1000s
MTIE (ns)	0.2	4	15	20
TDEV (ns)	0.02	0.3	2	6

TX235

Precision miniature TCXO or VCTCXO that meets Stratum 3 wander requirements, designed for use in telecom and PTP/IEEE-1588 applications

Parameter	Condition	Value		Unit
Frequency		10.0 to 50		MHz
Package Size		5.0 x 3.2		mm
Output Type		LVCMOS or Clipped Sine-wave
Supply Voltage		3.3		V
Operating Temperature Range		-20 – 70, -40 – 85		C
Frequency Stability		±0.30		ppm
Jitter (12kHz to 20MHz)	@24.576 MHz	< 0.85		ps
Jitter (12kHz to 20MHz)	@49.152 MHz	< 0.8		ps
Wander as per GR-1244 (100 MHz loop BW)
	1s	10s	100s	1000s
MTIE (ns)	0.2	4	15	20
TDEV (ns)	0.02	0.3	2	6

OX2100

is a small footprint OCXO or OCVCXO that can be used as frequency standard in PTP/IEEE-1588
Ver. 2.0 as TCXO replacement with better short term stability.as reference oscillator source

Parameter	Condition	Value		Unit
Frequency		10.0, 12.8, 19.44, 20.0, 25.0, 38.88, 49.152		MHz
Package Size		4-pin DIP
Output Type		CMOS
Supply Voltage		3.3, 5.0		V
Operating Temperature Range		0 – 70, -20 – 75, -40 – 85		C
Frequency Stability		±50, ±100		ppm
Jitter (12kHz to 20MHz)	@49.152 MHz	0.29		ps
Wander as per GR-1244 (100 MHz loop BW)
	1s	10s	100s	1000s
MTIE (ns)	0.2	4	12	20
TDEV (ns)	0.02	0.15	1.6	5

OX3100

OX3100 is a Stratum 3E Euro package OCXO or OCVCXO that can be used as frequency standard in PTP/IEEE-1588
Ver. 2.0 applications requiring tight stability using a low noise SC-cut crystal oscillator

Parameter	Condition	Value		Unit
Frequency		10.0, 12.8, 19.44, 20.0, 25.0, 38.88		MHz
Package Size		36x27x14mm, 5 pins(euro)
Output Type		CMOS
Supply Voltage		5.0		V
Operating Temperature Range		0 – 70, -20 – 75, -40 – 85		C
Frequency Stability		±10		ppm
Jitter (12kHz to 20MHz)	@49.152 MHz	0.37		ps
Wander as per GR-1244 (100 MHz loop BW)
	1s	10s	100s	1000s
MTIE (ns)	0.2	1.5	10	12
TDEV (ns)	0.01	0.05	1	4

OX4100

OX4100 is a high stability Double Oven Controlled Crystal Oscillator (DOCXO) that can be used as
frequency reference standard for PTP/IEEE-1588 Grandmaster applications.

Parameter	Condition	Value		Unit
Frequency		10.0, 12.8 , 20.0 , 38.88		MHz
Package Size		50.0 x 50.0 x 16.0, 5 pins
Output Type		CMOS or Sine
Supply Voltage		5.0, 12.0		V
Operating Temperature Range		0 – 70, -20 – 75, -40 – 85		C
Frequency Stability		±0.5		ppm
ADEV	@1 sec	5.0E-11
Holdover	8 hours	7		µs
Jitter (12kHz to 20MHz)	@20.00MHz	< 0.70		ps
Wander as per GR-1244 (100 MHz loop BW)
	1s	10s	100s	1000s
MTIE (ns)	0.2	1.5	10	12
TDEV (ns)	0.01	0.05	1	4

MTIE [ns]
0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2
3	3	2	2	1.5	1.5	1.5	1
15	15	12	12	10	10	10	8
20	20	20	20	15	15	15	12

MTIE [ns]
0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2
3	3	2	2	1.5	1.5	1.5	1
15	15	12	12	10	10	10	8
20	20	20	20	15	15	15	12

MTIE [ns]
0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2
3	3	2	2	1.5	1.5	1.5	1
15	15	12	12	10	10	10	8
20	20	20	20	15	15	15	12