DAISHINKU develops the DSO221SW crystal oscillator, achieving narrower tolerances over wider temperature ranges

DAISHINKU CORP.(President: Sohei Hasegawa) announces development of the DSO221SW, a small-size crystal oscillator (SPXO)(size: 2520) that achieves narrower tolerances over wider temperature ranges. In recent years, electronic devices continue to reduce in size while achieving ever higher performance and functionality. Demand continues growing for electronic components making up these devices to meet this trend. In the field of short-distance wireless communications, especially, improved communication speeds and high precision are top priorities. Meanwhile, enhanced multifunctionality has accompanied increased device density as well as additional heat from the ICs, which raises concern about higher temperatures in product sets. For these reasons, it is imperative that electronic components ensure high precision over broader operational temperature ranges. The DSO221SW crystal oscillator has been developed to meet these challenges.This product achieves narrow tolerances over wider temperature ranges(e.g., +/-10*10-6 at -20 to +70deg.C, and +/-30*10-6 at -40 to +105deg.C). Its volume (2.5*2.0*0.8 mm externally) is approximately 45% smaller than that of the conventional DSO321 series (3.2*2.5*0.9 mm). Thus, the DSO221SW meets the needs ofsmaller size and enhanced multifunctionality in short-distance wireless modules. Narrower tolerances have been achieved compared with conventional SPXOs by taking advantage of the frequency control technology used in temperature-compensated crystal oscillators (TCXOs). With operation guaranteed at temperatures up to +105deg.C, the DSO221SW is well suited for car electronics applications. Featuring a broad frequency range (3to54 MHz), the DSO221SW is operable from low (+1.8V) to high (+3.3V) voltages. The DSO221SW also boasts excellent environmental performance that meets the lead-free requirements and RoHS Directive in Europe.

［Product］

DSO221SW

［Features］

• 2520size (2.5*2.0*0.8mm)
• Offers Narrow deviation:
  ·±10*10-6/-20to+70deg.C
  ·±12*10-6/-30to+85deg.C
  ·±15*10-6/-40to+85deg.C
  ·±30*10-6/-40to+105deg.C
• Output Frequency Range: 3to54MHz
• Supply Voltage: +1.8to+3.3V
• Output: C-MOS

［Applications］

WiLAN, WiMAX, PLC, SSD, UWB, MIDs, Medical instruments, Mobile phones, visual applications, and automotive electronics

［Mass Production date］

June,2009

［Sample price］

700 yen sample are available now.

［Manufacturing capacity］

1million/month

［Electrical Specification］

Item		Symbol	Spec.			Unit	Condition
			MIN	TYP	MAX
Supply Voltage		Vdd	+1.6	+1.8	+2.0	V	-	-
			+2.25	+2.5	+2.75
			+2.6	+2.8	+3.0
			+3.0	+3.3	+3.6
Operating Temperature Range		T-use	-40	-	+105	deg.C	-	-
Frequency Tolerance		F-tol1	-10	-	+10	*10-6	-	Topr=-20to+70deg.C
		F-tol2	-12	-	+12		-	Topr=-30to+85deg.C
		F-tol3	-15	-	+15		-	Topr=-40to+85deg.C
		F-tol4	-30	-	+30		-	Topr=-40to+105deg.C
Current Consumption	3.0≦F0≦26 (MHz)	Idd	-	-	2.0	mA	Vdd=+1.8V	No Load
			-	-	2.5		Vdd=+2.5V
			-	-	2.8		Vdd=+2.8V
			-	-	3.0		Vdd=+3.3V
	26<F0≦54 (MHz)		-	-	4.0		Vdd=+1.8V
			-	-	4.5		Vdd=+2.5V
			-	-	5.0		Vdd=+2.8V
			-	-	5.5		Vdd=+3.3V
Stand-byCurrent	Output Disable	I-std	-	-	10	µA	#1pin”L”Level	-
Symmetry	0.5*Vdd	SYM	45	50	55	%	-	-
Output	0Level Output voltage	Vol	-	-	Vdd*0.1	V	-	-
	1Level Output voltage	Voh	Vdd*0.9	-	-
	Rise Time	Tr	-	-	10	ns	Vdd*0.1-Vdd*0.9
	Fall Time	Tf	-	-	10
	Output Load	L-CMOS	15			pF	-	-
#1pin Input	0Level Input Current	Iil	-	-	-0.01	mA	-	-
	1Level Input Current	Iih	-	-	0.01
	0Level Input Voltage	Vil	-	-	Vdd*0.2	V
	1Level Input Voltag	Vih	Vdd*0.8	-	-
Output Disable Time		Tplz	-	-	150	ns	-	-

*Consult our sales representative for other specifications.

［Dimensions］
DSO221SW

DSO221SW

［TOP VIEW］