VCB1 series
3.3, 5.0 volt CMOS Oscillator
Features
• CMOS output • Output frequencies to 160 MHz • Tri-state output for board test and debug • 0/70 or –40/85 °C operating temperature • Product is compliant to RoHS directive and fully compatible with lead free assembly
Applications
The VCB1 Crystal Oscillator
• SONET/SDH/DWDM • Ethernet, Gigabit Ethernet • Storage Area Network
• Digital Video • Broadband Access • Microprocessors/DSP/FPGA
Description
fo
Output Buffer / Disable
Vectron’s VCB1 Crystal Oscillator (XO) is quartz stabilized square wave generator with a CMOS output, operating off a 3.3 or 5.0 volt supply. The VCB1 uses fundamental or 3 overtone crystals, for output frequencies < 80MHz, resulting in low jitter performance, typically 0.5ps rms in the 12 kHz to 20MHz band.
rd
Vectron International 267 Lowell Road, Hudson NH 03051
Tel: 1-88-VECTRON-1
e-mail: vectron@vectron.com
Performance Characteristics
Table 1. Electrical Performance, 5V option Parameter Symbol Frequency fO 1 Operating Supply Voltage VDD Absolute Maximum Supply Voltage IDD Supply Current, Output Enabled 0.032768 to 2.0 MHz 2.01 to 30 MHz 30.01 to 50 MHz 50.01 to 160.00 MHz Output Logic Levels 2 Output Logic High VOH 2 Output Logic Low VOL Output Rise/Fall Time 0.032768 to 2.00 MHz 2.01 to 20.00 MHz 20.01 to 160.00 MHz 3 Duty Cycle (ordering option) Operating Temperature (ordering option) Storage Temperature 4 Stability (ordering option) 5 Output Enable/Disable Output Enabled Output Disabled Start-up time
2
Min 0.032768 4.5 -0.7
Typical 5.0
Maximum 160.000 5.5 7.0 10 15 40 50
Units MHz V V mA
0.9*VDD 0.1*VDD 10 8 5
V V ns
tR/tF
SYM
40/60 or 45/55 0/70 or -40/85 -55 125 ±20, ±25, ±32, ±50, ±100 4.0 0.8 10
% °C °C ppm V
ms
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 operating conditions under which these parameters are tested and specified. 3. Symmetry is measured defined as On Time/Period. 4. Includes calibration tolerance, operating temperature, supply voltage variations, aging and shock and vibration (not under operation). 5. Output will be enabled if enable/disable is left open.
tR tF
IDD 4
V DD
V OH
50%
V OL
On Time Period
+ -
.1 µF
. 01 µF
IC VC
1 +
-
2
3
1 5pF
Figure 1. Output Waveform
Figure 2. Typical Output Test Conditions (25±5°C)
Vectron International 267 Lowell Rd, Hudson NH 03051
Tel: 1-88-VECTRON-1
e-mail: vectron@vectron.com
VCB1 Data Sheet
Table 2. Electrical Performance, 3.3V option Parameter Symbol Frequency fO 1 Operating Supply Voltage VDD Absolute Maximum Operating Voltage IDD Supply Current, Output Enabled 0.032786 to 2.0 MHz 2.01 to 30 MHz 30.01 to 50 MHz 50.01 to 160 MHz Output Logic Levels 2 Output Logic High VOH 2 Output Logic Low VOL 2 tR/tF Output Rise/Fall Time 0.032768 to 2.00 MHz 2.01 to 20.00 MHz 20.01 to 160.00 MHz 3 Duty Cycle (ordering option) SYM Operating Temperature (ordering option) Storage Temperature 4 Stability (ordering option) 5 Output Enable/Disable Output Enabled Output Disabled Start-up time
Min 0.032768 2.97 -0.5
Typical 3.3
Maximum 160.000 3.63 5.0 8 10 20 35
Units MHz V V mA
0.9*VDD 0.1*VDD 12 10 6 40/60 or 45/55 0/70 or –40/85 -55 125 ±20, ±25, ±32, ±50, ±100 2.0 0.5 10
V V ns
% °C °C ppm V
ms
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 3 defines these parameters. Figure 4 illustrates the operating conditions under which these parameters are tested and specified. For Fo>90MHz, rise and fall time is measured 20 to 80%. 3. Symmetry is measured defined as On Time/Period. 4. Includes calibration tolerance, operating temperature, supply voltage variations, aging and shock and vibration (not under operation). 5. Output will be enabled if enable/disable is left open.
tR tF
IDD 4
V DD
V OH
50%
V OL
On Time Period
+ -
.1 µF
. 01 µF
IC VC
1 +
-
2
3
1 5pF
Figure 3. Output Waveform
Figure 4. Typical Output Test Conditions (25±5°C)
Vectron International 267 Lowell Rd, Hudson NH 03051
Tel: 1-88-VECTRON-1
e-mail vectron@vectron.com
VCB1 Data Sheet
Enable/Disable Functional Description
Under normal operation the Enable/Disable is left open or set to a logic high state. When the E/D is set to a logic low, the oscillator stops and the output is in a high impedance state. This helps reduce power consumption as well as facilitating board testing and troubleshooting.
Tri-state Functional Description
Under normal operation the tri-state is left open or set to a logic high state. When the tri-state is set to a logic low, the oscillator remains active but the output buffer is in a high impedance state. This helps facilitate board testing and troubleshooting.
Table 3. Outline Diagrams and Pin Out
Pin #
1 2 3 4
Symbol
E/D or NC GND fO VDD
Function
Tri-state, Enable/Disable or NC Electrical and Case Ground Output Frequency Supply Voltage
Figure 5, Package drawing
Vectron International 267 Lowell Rd, Hudson NH 03051
Tel: 1-88-VECTRON-1
e-mail vectron@vectron.com
VCB1 Data Sheet
Reliability
The VCB1 qualification tests have included: Table 4. Environnemental Compliance
Parameter Mechanical Shock Mechanical Vibration Temperature Cycle Gross and Fine Leak Resistance to Solvents MIL-STD-883 MIL-STD-883 MIL-STD-883 MIL-STD-883 MIL-STD-883 Conditions Method 2022 Method 2007 Method 1010 Method 1014 Method 2015
Handling Precautions
Although ESD protection circuitry has been designed into the the VCB1, 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 5. ESD Ratings
Model Human Body Model Charged Device Model Minimum 1000 1500 Conditions MIL-STD-883 Method 3115 JESD 22-C101
Suggested IR profile
Devices are built using lead free epoxy and can also be subjected to standard lead free IR reflow conditions, Table 6 shows max temperatures and lower temperatures. A peak temperature of 240°C minimum should be used to reflow the lead solder. Table 6. Reflow Profile (IPC/JEDEC J-STD-020B) Parameter Symbol
Preheat Time Ramp Up Time Above 217 C Time To Peak Temperature Time At 260 oC (max) Time At 240 °C (max) Ramp Down
o
Value
150 sec Min, 200 sec Max 3 oC/sec Max 60 sec Min, 150 sec Max 480 sec Max 10 sec Max 60 sec Max 6 oC/sec Max
tS R UP tL t AMB-P tP tp2 R DN
Vectron International 267 Lowell Rd, Hudson NH 03051
Tel: 1-88-VECTRON-1
e-mail vectron@vectron.com
VCB1 Data Sheet Ordering Information:
VCB1 Product Family Crystal Oscillator ½ Size DIP Voltage Options A: +5.0 Vdc +/-10%, 15pF B: +3.3 Vdc +/-10%, 15pF C: +3.0 Vdc +/-5%, 15pF E: +5.0 Vdc +/-10%, 50pF F: +3.3Vdc +/-5%, 50pF
B
3
B-
25M00
Output Frequency In MHZ
Electrical Options 3: Tri-state, 45/55% Duty The following codes are not recommended for new designs 0: No tri-state, 40/60% Duty 1: Tri-state, 40/60% Duty 2: No tri-state, 45/55%Duty 5: Enable, 40/60% Duty 6: Enable, 45/55% Duty Stability Options A: ±100ppm, 0 to 70°C C: ±100ppm, -40 to 85°C B: ±50ppm, 0 to 70°C D: ±50ppm, -40 to 85°C E: ±25ppm, 0 to 70°C F: ±25ppm, -40 to 85°C G: ±20ppm, 0 to 70°C
Note: Not all combinations are available. Tri-state with a 45/55% is the most common Electrical code and is recommended for most applications.
Devices will be shipped in Anti Static Tubes
For Additional Information, Please Contact:
USA: Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Fax: 1-888-FAX-VECTRON E UROPE: L andstrasse, D-74924, Neckarbischofsheim, Germany • Tel: 49 (0) 7268 8010 • Fax: 49 (0) 7268 801281 ASIA: Vectron Asia Pacific Sales 1F~2F. No.8 Workshop No.308 Fenju Rd., WaiGaoQiao Free Trade Zone, Pudong New Area Shanghai, China 200131 •Tel: 8621 50480777 • Fax: 8621 50481881
June23, 2006
www.vectron.com
Vectron International 267 Lowell Rd, Hudson NH 03051
Tel: 1-88-VECTRON-1
e-mail vectron@vectron.com
