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VVC4
Voltage Controlled Crystal Oscillator
Features
* Vectron's Smallest VCXO, 5.0 X 3.2 X 1.2 mm * High Frequencies to 77.760 MHz * 5.0 or 3.3 V operation * Linearity 10% * Tri-State Output for testing * Low jitter < 1ps RMS 12 KHz to 20 MHz * CMOS output * 0/70 or -40/85 C temperature range
* Hermetically sealed ceramic SMD package
Product is compliant to RoHS directive and fully compatible with lead free assembly
The VVC4 Voltage Controlled Crystal Oscillator
Applications
* Home Gateway * WIMAX * xDSL/PCMCIA cards
* Digital Video
ESD Diodes
Description
Vectron's VVC4 Voltage Controlled Crystal Oscillator (VCXO) is a quartz stabilized square wave generator with a CMOS output and is tested at CMOS and TTL (5.0 volt operation) logic levels. The VVC4 is the smallest available VCXO making it ideally suitable for applications where size is limited but performance is required.
Vc
Input Buffer Output Buffer / Tri-state
fO
Vectron International 267 Lowell Road, Hudson NH 03051
Tel:1-88-VECTRON-1
e-mail: vectron@vectron.com
VVC4 Voltage Controlled Crystal Oscillator Performance Characteristics
Table 1. Electrical Performance Parameter Frequency Supply Voltage 1 (+3.3 V) (+5.0 V) Supply Current Output Logic Levels Output Logic High2 Output Logic Low2 Rise and Fall Time2 <24 MHz >24 MHz Tristate Output Enabled Output Disabled Symmetry or Duty Cycle3 (ordering option) Operating temperature (ordering option) Test Conditions for APR (+5V option) Test Conditions for APR (+3.3V option) Absolute Pull Range (ordering option)
Symbol fO VDD IDD VOH VOL tR / tF
Min 3.2500 2.97 4.5
Typical 3.3 5.0 8
Maximum 77.7600 3.63 5.5 15
Units MHz V mA V V ns ns V V % C V V ppm
0.9*VDD 0.1VDD 10 6
VIN VIL SYM
2.5 40 50 0/70 or -40/85 0.7 60
VC VC APR
0.5 0.3 50 80 100 Positive 160
4.5 3.0
Gain Transfer Input Impedance Control Voltage Bandwidth (-3dB) Phase Noise 10 Hz Offset 100 Hz Offset 1 KHz Offset 10 KHz Offset 100 KHz Offset 1 MHz Offset Package Size
BW
10 -65 -95 -125 -140 -145 -150 5.0 x 3.2 x 1.2
ppm/V KOhm kHz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz mm
1. A 0.01uF and a 0.1uF capacitor should be located as close to the supply as possible (to ground) is recommended. 2. Figure 1 defines these parameters. Figure 2 illustrates the equivalent five gate TTL load and operating conditions under which these parameters are tested and specified. 3. Symmetry is defined as (ON TIME/PERIOD with Vs= 1.4 V for TTL and Vs=2.5 V for CMOS, 5 volt operation, and Vs=1.65V for 3.3 Volt operation.
tR
80%
tF
IDD 6 V DD + 2 5 3
650
Vs
20%
.1F
.01F IC VC
1 + -
4
15pF 1.8k
On Time Period
Figure 1. Output Waveform
Figure 2. Typical Output Test Conditions (255C)
Vectron International 267 Lowell Road, Hudson NH 03051
Tel:1-88-VECTRON-1
e-mail: vectron@vectron.com
VVC4 Voltage Controlled Crystal Oscillator
Outline Diagram, Pad Layout and Pin Out
6 5 4
1
2
3
1.2 Max
Pin #
1 2 3 4 5 6
Symbol
VC Tri-state GND fO CMOS/TTL VDD
Function
Control Voltage Logic low disables output Logic high or no connection enables output waveform Ground Output Frequency Logic low for CMOS optimized symmetry Logic high or no connection for TTL optimized symmetry Supply Voltage
Tape and Reel
J F D A E C G B L I
H
K
Tape and Reel Dimensions (mm) Tape Dimensions Product A B C D E
VVC4
12 5.5 1.5 4 8
Reel Dimensions F G H
1.78 20.6 13
I
55
J
6
K
12.4
L
178
# Per Reel
500
Vectron International 267 Lowell Road, Hudson NH 03051
Tel:1-88-VECTRON-1
e-mail: vectron@vectron.com
VVC4 Voltage Controlled Crystal Oscillator Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can permanently damage the device. Functional operation is not implied at these or any other conditions in excess of conditions represented in the operational sections of this data sheet. Exposure to absolute maximum ratings for extended periods may adversely affect device reliability. Table 2. Absolute Maximum Ratings Parameter Symbol Power Supply VDD Storage Temperature Tstorage Voltage Control Range VC
Ratings 6 -55/125 0 to VDD
Unit Vdc C V
Reliability
The VVC4 is capable of meeting the following qualification tests.
Table 3. Environmental Compliance
Parameter Mechanical Shock Mechanical Vibration Solderability Gross and Fine Leak Resistance to Solvents Moisture Sensitivity Level MIL-STD-883 MIL-STD-883 MIL-STD-883 MIL-STD-883 MIL-STD-883 1 Conditions Method 2002 Method 2007 Method 2003 Method 1014 Method 2016
Handling Precautions
Although ESD protection circuitry has been designed into the the VVC4, proper precautions should be taken when handling and mounting. VI employs a Human Body Model and a Charged-Device Model (CDM) for ESD susceptibility testing and design protection evaluation. ESD thresholds are dependent on the circuit parameters used to define the model. Although no industry wide standard has been adopted for the CDM, a standard HBM of resistance = 1.5kohms and capacitance = 100pF is widely used and therefore can be used for comparison purposes.
Table 4. ESD Ratings
Model Human Body Model Charged Device Model Minimum 1500 1000 Conditions MIL-STD-883 Method 3115 JESD 22-C101
The VVC4 is qualified to meet the JEDEC standard for Pb-Free assembly. The temperatures and time intervals listed are based on the Pb-Free small body requirements and parameters are listed in the table below. The contact pads are gold over nickel so lower IR reflow temperatures such as 220C can be used (device is backwards compatible with a lead solder assembly). The VVC4 is hermetically sealed so an aqueous wash is not an issue.
Table 5. Reflow Profile (IPC/JEDEC J-STD-020) Parameter Symbol
PreHeat Time Ramp Up Time Above 217 C Time To Peak Temperature Time At 260 C Ramp Down
o o
Value
60 sec Min, 180 sec Max 3 C/sec Max 60 sec Min, 150 sec Max 480 sec Max 20 sec Min, 40 sec Max 6 C/sec Max
o o
tS R UP tL t AMB-P tP R DN
Vectron International 267 Lowell Road, Hudson NH 03051
Tel:1-88-VECTRON-1
e-mail: vectron@vectron.com
VVC4 Voltage Controlled Crystal Oscillator
260
tL R UP tP R DN
Temperature (DegC)
217 200
150
tS t AMB-P
25
Time (sec)
Standard Frequencies (MHz)
3.600 13.500 32.768 74.1758 4.096 16.384 34.560 74.250 8.192 19.440 38.785 77.760 10.000 27.000 44.736 12.960 28.375 51.840
Other frequencies may be available upon request
Ordering Information
For Additional Information, Please Contact:
USA: Vectron International, 267 Lowell Rd, Hudson, NH 03051 . . . . . . . EUROPE: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ASIA: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tel: 1-88-VECTRON-1 Tel: 49 (0) 7268 8010 Tel: 86 21 5048 0777 Fax: 1-888-FAX-VECTRON Fax: 49 (0) 7268 801281 Fax: 86 21 5048 1881
Vectron International reserves the right to make changes to the product(s) and or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.
Vectron International 267 Lowell Road, Hudson NH 03051
Tel:1-88-VECTRON-1
e-mail: vectron@vectron.com

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