Skyworks Si535/536 ULTRA LOW JITTER CRYSTAL OSCILLATOR (XO)

The Si535/536 XO utilizes Skyworks Solutions advanced DSPLL circuitry to provide an ultra low jitter clock at high-speed differential frequencies. Unlike traditional XOs, it uses one fixed crystal for a wide range of output frequencies, offering exceptional frequency stability and reliability. Its IC-based approach and DSPLL clock synthesis provide superior supply noise rejection, simplifying clock generation in noisy communication system environments. Factory programmed at shipment, it eliminates long lead times associated with custom oscillators.

Product Attributes

Brand: Skyworks Solutions, Inc.
Certifications: Pb-free/RoHS-compliant
Material: Gold over Nickel (Contact Pads)

Technical Specifications

Parameter	Symbol	Test Condition	Min	Typ	Max	Unit	Notes
Supply Voltage	VDD	3.3 V option	2.97	3.3	3.63	V	Selectable parameter specified by part number.
Supply Voltage	VDD	2.5 V option	2.25	2.5	2.75	V	Selectable parameter specified by part number.
Supply Current	IDD	Output enabled LVPECL		111	121	mA
Supply Current	IDD	Output enabled LVDS		90	98	mA
Tristate mode	IDD			60	75	mA
Output Enable (OE) High Input Voltage	VIH		0.75 x VDD			V	OE pin includes a 17 k pullup resistor to VDD.
Output Enable (OE) Low Input Voltage	VIL				0.5	V	OE pin includes a 17 k pullup resistor to VDD.
Operating Temperature Range	TA		-40		85	C
Nominal Frequency	fO	LVPECL/LVDS	100		312.5	MHz	See Section 3. "Ordering Information" on page 7 for the list of available frequencies.
Nominal Frequency	fO	LVPECL/LVDS
Initial Accuracy	fi	Measured at +25 C at time of shipping		1.5		ppm
Temperature Stability			-7	-20		+7	+20	ppm	Selectable parameter specified by part number.
Temperature Stability
Aging	fa	Frequency drift over first year			3	ppm
Aging	fa	Frequency drift over 20 year life			10	ppm
Total Stability		Temp stability = 20 ppm			31.5	ppm
Total Stability		Temp stability = 7 ppm			20	ppm
Powerup Time	tOSC	TA = 40C to +85C			10	ms	Time from powerup or tristate mode to fO.
LVPECL Output Mid-level	VO	50 to VDD 2.0 V		VDD 1.42	VDD 1.25	V
LVPECL Output Mid-level	VO	50 to VDD 2.0 V
LVPECL Output Swing (differential)	VOD		1.1		1.9	VPP
LVPECL Output Swing (Single-ended)	VSE		0.55		0.95	VPP
LVDS Output Mid-level	VO	Rterm = 100 (differential)		1.125	1.20	1.275	V
LVDS Output Mid-level	VO	Rterm = 100 (differential)
LVDS Output Swing (differential)	VOD		0.5	0.7	0.9	VPP
Rise/Fall time (20/80%)	tR, tF				350	ps
Symmetry (duty cycle)	SYM	Differential	45		55	%
Phase Jitter* (RMS)	J	10 kHz to 1 MHz (data center)		0.19	0.35	ps	Applies to output frequencies: 156.25 MHz.
Phase Jitter* (RMS)	J	12 kHz to 20 MHz brickwall		0.25	0.40	ps	Applies to output frequencies: 156.25 MHz.
Period Jitter*	JPER	RMS		2		ps	N = 1000 cycles.
Period Jitter*	JPER	Peak-to-Peak		14		ps	N = 1000 cycles.
Thermal Resistance Junction to Ambient	JA	Still Air		84.6		C/W	Typical values TA = 25 C, VDD = 3.3 V
Thermal Resistance Junction to Case	JC	Still Air		38.8		C/W	Typical values TA = 25 C, VDD = 3.3 V
Ambient Temperature	TA		-40		85	C
Junction Temperature	TJ				125	C

Applications

10/40/100G data centers
10G Ethernet switches/routers
Fibre channel/SAS/storage
Enterprise servers
Networking
Telecommunications

2508281722_SILICON-LABS-536AC000292DGR_C2029903.pdf

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