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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