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Crystal Oscillators

Negotiable Min Order Quantity Unit

SEOAN Electronics Co., Ltd.

Verified Certificate

DUNS

Minisite Follow Company

VFA / VFC Series
HERMETIC DIP-14PIN VCXO

Typical Applications

Electrical Specification

Parameter		Unit	TTL/HCMOS		SINEWAVE
Frequency Range		MHz	1 to 260MHz		8 to 600Mhz
Supply Voltage		Vcc	5.0Vdc 5%(Std.)/3.3Vdc ±5%(Std.)
Current Consumption		mA	20mA Max @ 20MHz		10mA Max @ 20MHz
Load			TTL : 10TTL(Std.) HCMOS : 15pF		50Ohm
Waveform			TTL / HCMOS		Sine Wave
Output level		V	TTL	Level-1 (VH) :1.4V Level-0 (VL) :0.4V	0.7dBm
			HCMOS	Level-1 (VH) :90%VCC Level-0 (VL) :10%VCC
Operating Temperature Range		°C	See table 2(VCTCXO part number guide)
Storage Temperature Range		°C	-40 to 85°C
Frequency Stability	VS. Temperature	ppm	See table 1(VCTCXO part number guide)
	VS. Supply Voltage	ppm	±0.3 (VCC ±5% change)
	VS. Load changes	ppm	±0.3 (Load±5% change)
	VS. Aging	ppm	±1.0
Frequency Adjustment		ppm	±3ppm Min (With Trimmer Access Hole)
Frequency Control	Pullability	ppm	See table 3(VCTCXO part number guide)
	Control Voltage	V	See table 4(VCTCXO part number guide)
	Slope		Positive
	Linearity	%	10
	Input Impedance	KOhm	100
Phase Noise @10MHz		dBc/Hz	51.840MHz	155.520MHz	622.08MHz
	at 10hz		-82	-80	-60
	at 100hz		-115	-110	-97
	at 1KHz		-140	-125	-120
	at 10KHz		-150	-135	-132
	at 100KHz		-155	-142	-140

Selection Guide

Stability(Table 1)	Temperature Range (Table2)	Pullability (Table3)	Control Voltage (Table4)
010: ±10ppm Max 015: ±15ppm Max 020: ±20ppm Max 025: ±25ppm Max 050: ±50ppm Max 100: ±100ppm Max	A: 0 to 70åÂ ìÂÂìÂÂbr />B: 0 to 50åÂ ìÂÂìÂÂbr />C: -10 to 60åÂ ìÂÂìÂÂbr />D: -20 to 70åÂ ìÂÂìÂÂbr />E: -30 to 75åÂ ìÂÂìÂÂbr />F: -40 to 80åÂ ìÂÂìÂÂbr />G: -40 to 85åÂ ìÂÂìÂÂbr />H: -10 to 70åÂ ìÂÂìÂÂ/div>	050: ±50ppm Min 075: ±75ppm Min 100: ±100ppm Min 150: ±150ppm Min 200: ±200ppm Min 250: ±250ppm Min 300: ±300ppm Min	A: 0-2.5-5.0V B: 0.5-2.5-4.5V C: 0.5-2.5-4.75V D: 0.5-2.5-5.0V E: 0.3-1.65-3.0V F: 0.5-1.5-2.5V G: 0-1.65-3.3V S: User spec

Dimension(unit:mm)

Solder Reflow Guide

Pin Configuration

Waveform

Test Circuit

Shipping Tube Cross Section

SEOAN Electronics Co., Ltd.

Minisite Heart

DUNS

Address: C-809, Bundang Techno-park, 145, Yatap-dong, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea

Company introduction: For 14 years, Seoan Electronics Co., Ltd. has been providing its customers with reliable, precision, crystal oscillators by offering expertise in oscillator applications such as time-base generation, telecommunications, satellite receiving equipment, computer hardware and software, telemetry, instrumentation, signal processing, and ordnance electronics. Acceptance of our products and services in our home market of Korea prompted an expansion into the global markets.

Seoan began selling in the United States as a contract manufacturer to several of the nations frequency control products manufacturers. Today, US sales account for a significant portion of total revenue. Seoan Electronics continues to work with these outstanding companies, and has added excellent design and manufacturing capabilities to US customers through a network of manufacturer's representatives and distributors.

Seoan employs a full compliment of design engineers with the experience you need to take your technology to the next level. Upon submission of your specification, our team will work with you to achieve your design objectives.

Every year Seoan Electronics has expanded its engineering and manufacturing capabilities. Engineering is constantly involved research and development to maintain the company's position at the leading edge of oscillator design.