XR2209 Exar Corporation, XR2209 Datasheet
XR2209
Available stocks
Related parts for XR2209
XR2209 Summary of contents
Page 1
... Capacitor 3 C2 Timing 4 R Resistor Rev. 2.02 1975 EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 TM APPLICATIONS Voltage and Current-to-Frequency Conversion Stable Phase-Locked Loop Waveform Generation Triangle, Sawtooth, Pulse, Squarewave FM and Sweep Generation phase-locked loop applications. The oscillator of the XR-2209 has a typical drift specification of 20ppm/ C ...
Page 2
XR-2209 PIN CONFIGURATION PIN DESCRIPTION Pin # Symbol Type Description 1 V Positive Power Supply Timing Capacitor Input Timing Capacitor Input Timing Resistor. 5 BIAS I Bias Input for Single ...
Page 3
DC ELECTRICAL CHARACTERISTICS Test Conditions: Test Circuit of Figure 3 and Figure 4. and S Closed Unless Otherwise Specified 1 2 XR-2209M Parameters Min. General Characteristics Supply Voltage Single Supply 8 Split Supplies 4 Supply ...
Page 4
XR-2209 ABSOLUTE MAXIMUM RATINGS Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Dissipation (package ...
Page 5
PRECAUTIONS The following precautions should be observed when operating the XR-2209 family of integrated circuits: 1. Pulling excessive current from the timing terminals will adversely affect the temperature stability of the circuit. To minimize this disturbance, recommended that the total ...
Page 6
XR-2209 Figure 4. Test Circuit for Split Supply Operation OPERATING CONSIDERATIONS Supply Voltage (Pins 1 and 6) The XR-2209 is designed to operate over ...
Page 7
Timing Capacitor (Pins 2 and 3) The oscillator frequency is inversely proportional to the timing capacitor, C. The minimum capacitance value is limited by stray capacitances and the maximum value by Figure 5. Operating Range for Unequal Split Supply Voltages ...
Page 8
XR-2209 Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î A Î Î Î Î Î Î Î Î Î Î Î Î Î Î ...
Page 9
Figure 11. Normalized Frequency Drift with Temperature Squarewave Output (Pin 7) The squarewave output at pin “open-collector” stage capable of sinking up to 20mA of load current. R serves as a pull-up load resistor for this output. ...
Page 10
XR-2209 MODES OF OPERATION Split Supply Operation Figure 12 is the recommended configuration for split supply operation. Diode D in the figure assures that the 1 triangle output swing at pin 8 is symmetrical about ground. The circuit operates with ...
Page 11
Figure simplified configuration for operation with split supplies in excess of +7V. This circuit eliminates the diode D1 used in Figure 12 by grounding pin 5 directly Figure 13. Split-Supply Operation, Simplified Configuration Rev. 2.02 ...
Page 12
XR-2209 Single Supply Operation The circuit should be interconnected as shown in Figure 14 for single supply operation. Pin 6 should be grounded, and pin 5 biased from V CC divider to a ...
Page 13
5000pF, then a 1000:1 C frequency sweep would result for a negative sweep voltage The voltage to frequency conversion gain controlled by ...
Page 14
XR-2209 XR-2209 Sweep Voltage Figure 16. Frequency Sweep Operation, Single Supply Rev. 2. Square Wave 7 ...
Page 15
LEAD PLASTIC DUAL-IN-LINE A Seating Plane L SYMBOL Note: The control dimension is the inch column Rev. 2.02 (300 MIL ...
Page 16
XR-2209 8 LEAD CERAMIC DUAL-IN-LINE Base Plane Seating Plane SYMBOL Note: The control dimension is the inch column Rev. 2.02 (300 MIL CDIP) Rev. 1. ...
Page 17
Rev. 2.02 Notes 17 XR-2209 ...
Page 18
XR-2209 Rev. 2.02 Notes 18 ...
Page 19
Rev. 2.02 Notes 19 XR-2209 ...
Page 20
... While the information in this publication has been carefully checked; no responsibility, however, is assumed for inaccuracies. EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless EXAR Corporation receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized ...