XR2207M Exar Corporation, XR2207M Datasheet
XR2207M
Available stocks
Related parts for XR2207M
XR2207M Summary of contents
Page 1
... R2 5 Timing Resistors Rev. 2.02 1975 EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 TM APPLICATIONS FSK Generation Voltage and Current-to-Frequency Conversion Stable Phase-Locked Loop Waveform Generation – Triangle, Sawtooth, Pulse, Squarewave FM and Sweep Generation 13V) The XR-2207 has a typical drift specification of 20ppm/ C. ...
Page 2
XR-2207 PIN CONFIGURATION Lead PDIP, CDIP (0.300”) PIN DESCRIPTION Pin # Symbol Type Description 1 V Positive Power Supply Timing ...
Page 3
ELECTRICAL CHARACTERISTICS Test Conditions: Test Circuit of Figure 3 and Figure 20k , RL = 4.7k , Binary Inputs Grounded XR-2207ID/XR-2207M Parameters Parameters Min. General Characteristics Supply Voltage Single Supply ...
Page 4
XR-2207 ELECTRICAL CHARACTERISTICS XR-2207ID/XR-2207M Parameters Parameters Min. Output Characteristics Triangle Output Amplitude 4 I Impedance d DC Level Linearity Linearity Squarewave Output Amplitude 11 Saturation Voltage Rise Time Fall Time Notes Bold face parameters are covered by ...
Page 5
Q19 Capacitor Timing Resistors Q16 9 Q17 Binary B B Keying Inputs Figure 2. Equivalent Schematic Diagram Rev. 2. Q14 Q13 R Q12 Timing ...
Page 6
XR-2207 PRECAUTIONS The following precautions should be observed when operating the XR-2207 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 ...
Page 7
Binary Keying Inputs Figure 4. Test Circuit for Split Supply Operation OPERATING CONSIDERATIONS Supply Voltage (Pins 1 and 12) The XR-2207 is designed to operate over a power supply range 13V for split supplies ...
Page 8
XR-2207 Typical Operating Range -10 -15 Negative Supply (V) Figure 5. Operating Range for Unequal Split Supply Voltages Split Supply ...
Page 9
C=5000pF 10K 100K 1M Timing Resistance ( ) Figure 9. Frequency Accuracy vs. Timing Resistance +2% + 20k ...
Page 10
XR-2207 Binary Keying Inputs (Pins 8 and 9) The logic levels applied to the two binary keying inputs allow the selection of four different oscillator frequencies. The internal impedance at these pins is approximately 5k . Keying voltages, which are ...
Page 11
Table single timing resistor is activated, the frequency is 1/RC. Otherwise, the frequency is either 1/(R || 1/(R ||R )C. 1 ...
Page 12
XR-2207 Single Supply Operation The circuit should be interconnected as shown in Figure 14A or Figure 14B for single supply operation. Pin 12 should be grounded, and pin 11 biased from V through a resistive divider to a value of ...
Page 13
Frequency Control (Sweep and FM) The frequency of operation is controlled by varying the total timing current drawn from the activated timing T pins The timing current can be modulated by applying a ...
Page 14
XR-2207 Bypass Cap Figure 15. Frequency Sweep Operation, Split Supply ...
Page 15
Figure 17. Frequency Sweep Operation, Single Supply Duty Cycle Control The duty cycle of the output waveforms can be controlled by frequency shift keying at the ...
Page 16
XR-2207 Rev. 2. SWO A 14 XR-2207 TWO B 11 BIAS GND ...
Page 17
A. Squarewave and Triangle Outputs B. Pulse and Sawtooth Outputs C. Frequency Shift Keyed Outputs Figure 19. Output Waveforms Rev. 2.02 On-Off Keying The XR-2207 can be keyed on and off by simply activating an open circuited timing pin. Under ...
Page 18
XR-2207 8 Channel Select Keying f1 OV Input 10 10K Figure 20. Multi-Channel FSK Generation Rev. 2. SWO A 14 TWO XR-2207 B 11 ...
Page 19
LEAD CERAMIC DUAL-IN-LINE Base Plane Seating L Plane B SYMBOL Note: The control dimension is the inch column Rev. 2.02 (300 MIL ...
Page 20
XR-2207 14 LEAD PLASTIC DUAL-IN-LINE A Seating Plane L B SYMBOL Note: The control dimension is the inch column Rev. 2.02 ...
Page 21
LEAD SMALL OUTLINE (300 MIL JEDEC SOIC Seating Plane e SYMBOL Note: The control dimension is the millimeter column Rev. 2.02 Rev. 1. ...
Page 22
XR-2207 Rev. 2.02 Notes 22 ...
Page 23
Rev. 2.02 Notes 23 XR-2207 ...
Page 24
... 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 ...