XR2212 Exar Corporation, XR2212 Datasheet
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XR2212
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XR2212 Summary of contents
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... TIM C2 12 TIM R PINP 9 7 NINP Rev. 2.01 1979 EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 TM APPLICATIONS Frequency Synthesis Data Synchronization FM Detection Tracking Filters FSK Demodulation 80%) FM detection, and tracking filter applications. The wide input dynamic range, large operating voltage range, large ...
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XR-2212 PIN CONFIGURATION PIN DESCRIPTION Pin # Symbol Type Description 1 V Positive Power Supply INP I Receive Analog Input. 3 VCOOC O VCO Current Output. 4 GND Ground Pin. 5 VCOOV O VCO Voltage Source Output. 6 ...
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ELECTRICAL CHARACTERISTICS Test Conditions +12V Figure 3 for component designation. XR-2212M/2212P Parameter P t Min. General Characteristics Supply Voltage 4.5 Supply Current Oscillator Section Frequency Accuracy Frequency Stability 1 Temperature ...
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XR-2212 ELECTRICAL CHARACTERISTICS XR-2212M/2212P Parameter Parameter Min. Input Preamp Section Input Impedance Input Signal to Cause Limiting Op Amp Section Voltage Gain 55 Input Bias Current Offset Voltage Slew Rate Internal Reference Voltage Level 4.9 Output Impedance Maximum Source Current ...
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Pre Amp Signal Input 0-DET Input AMP VCO Voltage Output VCO Current Output Figure 2. Functional Block Diagram of XR-2212 Precision PLL System 2 Phase Detector 0.1 F Input Signal 16 0 External Divider (Optional) Figure 3. ...
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XR-2212 Phase Detector Input 16 Signal Input 2 30K 30K Input Preamplifier 2K 2K Timing Capacitor Timing 12 Resistor Figure 4. Simplified Circuit Schematic of XR-2212 Rev. 2.01 Loop Phase Detector Output ...
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TYPICAL CHARACTERISTICS 10K > 100K Supply Voltage V (V) CC Figure 5. Typical Supply Current ...
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XR-2212 +1 -0.5 -1.0 -50 Figure 9. Typical Center Frequency Drift vs. Temperature DESCRIPTION OF CIRCUIT CONTROLS Signal Input (Pin 2): Signal is AC coupled to this terminal. The internal impedance at Pin 2 ...
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Pin 12 must be limited to <3 mA for proper operation of the circuit. VCO Timing Capacitor (Pins 13 and 14): VCO frequency is inversely proportional to the external timing capacitor connected across these terminals ...
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XR-2212 Design Equations (See Figure 3 and Figure 10 for definition of components.) 1. VCO Center Frequency 1 Internal Reference Voltage, V REF Pin 11 650mV REF CC ...
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Phase Detector 0 Input Figure 11. Circuit Connection for FM Demodulation Design Instructions The circuit of Figure 11 can be tailored to any FM demodulation application by a choice of the external components R ...
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XR-2212 % Deviation of FM Recommended Value of Signal ( Bandwidth Ratio less 10% 10% to 30% 30% to 50% Table 2. ...
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Choose timing resistor the range of 15k 0 to 100k . This choice is arbitrary. R tuned with a series potentiometer, ...
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XR-2212 INPUT SENSITIVITY The input to the XR-2212 may sometimes be too sensitive to noise conditions on the input line. Figure 13 illustrates a method of de-sensitizing the XR-2212 from such noisy line conditions by the use of a resistor, ...
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LEAD CERAMIC DUAL-IN-LINE Base 1 Plane Seating L Plane B SYMBOL Note: The control dimension is the inch column Rev. 2.01 (300 MIL ...
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XR-2212 16 LEAD PLASTIC DUAL-IN-LINE 16 A Seating Plane L B SYMBOL Note: The control dimension is the inch column Rev. ...
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Rev. 2.01 Notes 17 XR-2212 ...
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XR-2212 Rev. 2.01 Notes 18 ...
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Rev. 2.01 Notes 19 XR-2212 ...
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... 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 ...