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OSCILLATOR PRODUCTS
20MHz - 165MHz Variable Oscillator
Emulation Technology offers the VROSDIP4.320165 20MHz to 165MHz variable oscillator in a half-can DIP footprint. This high-quality variable oscillator allows the engineer to easily fine-tune the required reference frequency for system development or debug. A potentiometer is used to adjust the output frequency in three frequency bands covering the entire 20MHz to 165MHz range as determined by a jumper. An Output Enable pin allows the oscillator's HCMOS outputs to be in high-impedance or normal operation. The VROSDIP4.320165 is constructed on a compact two-layer FR4 PCB.
Features & Benefits
- Provides a variable oscillator in a half-can footprint
- Allows the system designer to efficiently develop and debug the system without the need to specify a particular fixed oscillator
- HCMOS output with high-impedance state
- Output Enable pin can be left unconnected for normal operation or held LOW for high-impedance output
- Wide frequency, power supply and operating temperature ranges
- Low frequency drift over time, temperature and power supply
- Simple frequency adjustment through a potentiometer
- Frequency band determined by a jumper
- Frequency adjustment tool included: see TOOL-POT-ADJ
- Ideal for lab environments
Pin Functions
| Pin Number |
Function |
Notes |
| 1 |
Output Enable (OE) or NC |
Integrated 1kW pullup to VCC |
| 4 |
GND |
|
| 5 |
Output (OUT) |
|
| 8 |
VCC |
|
Output Enable Function
| Pin 1 |
Pin 5 |
| Open/High |
Active |
| Low |
High-Z |
Frequency Range Selection
| JP1 Shunt Settings |
Frequency Range |
| JP1 on pins 1-2 |
High (68 to 165MHz) |
| JP1 open |
Med (34 to 85 MHz) |
| JP1 on pins 2-3 |
Low (20 to 42 MHz) |
Electrical Characteristics/Operating Conditions
| Symbol |
Parameter |
Conditions |
Minimum |
Typical |
Maximum |
Units |
| VCC |
Power Supply Range |
|
2.7 |
|
5.5 |
V |
| ICC |
Power Supply Current |
Fout = 170MHz, VCC = 5.5 |
|
37 |
|
mA |
| Fout = 170MHz, VCC = 2.7V |
|
14 |
|
| Fout = 21.44MHz, VCC = 5.5V |
|
8 |
|
| Fout = 21.44MHz, VCC = 2.7V |
|
4 |
|
| OE = 0V, VCC = 5V |
|
19 |
|
| |
Timing Jitter |
|
|
0.8 |
|
% |
| |
Frequency Drift over Temperature |
RVR1 = 0W |
|
±20 |
|
%/°C |
| |
Frequency Drift over Supply |
RVR1 = 0W;
VCC = 2.7V to 5.5V |
|
0.5 |
|
%/V |
| |
Duty Cycle |
|
47.5 |
50 |
52.5 |
% |
| VIH |
High Level OE Input Voltage |
|
0.7 VCC |
|
|
V |
| VIL |
Low Level OE Input Voltage |
|
|
|
0.3 VCC |
V |
| VOH |
High Level OUT Voltage |
VCC = 3V, IOH = -16mA |
2.4 |
2.8 |
|
V |
| VCC = 3V, IOH = -24mA |
2.3 |
2.7 |
|
| VCC = 4.5V, IOH = -32mA |
3.8 |
4.2 |
|
| VOL |
Low Level OUT Voltage |
VCC = 3V, IOL = 16mA |
|
0.15 |
0.40 |
V |
| VCC = 3V, IOL = 24mA |
|
0.22 |
0.55 |
| VCC = 4.5V, IOL = 32mA |
|
0.22 |
0.55 |
| |
Operating Temperature Range |
|
-45 |
|
85 |
°C |
Ordering Information
| Item |
Drawing |
VROSDIP4.320165 |
F7694 |
|
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VROSDIP4.320165
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