XR-2209 Voltage-Controlled TM ...the analog plus company Oscillator June 19973 FEATURES APPLICATIONS Excellent Temperature Stability (20ppm/C) Voltage and Current-to-Frequency Conversion Linear Frequency Sweep Stable Phase-Locked Loop Wide Sweep Range (1000:1 Minimum) Waveform Generation Triangle, Sawtooth, Pulse, Squarewave Wide Supply Voltage Range (+4V to +13V) FM and Sweep Generation Low Supply Sensitivity (0.1% /V) Wide Frequency Range (0.01Hz to 1MHz) Simultaneous Triangle and Squarewave Outputs GENERAL DESCRIPTION The XR-2209 is a monolithic voltage-controlled oscillator phase-locked loop applications. (VCO) integrated circuit featuring excellent frequency The oscillator of the XR-2209 has a typical drift stability and a wide tuning range. The circuit provides specification of 20ppm/C. The oscillator frequency can simultaneous triangle and squarewave outputs over a be linearly swept over a 1000:1 range with an external control voltage. frequency range of 0.01Hz to 1MHz. It is ideally suited for FM, FSK, and sweep or tone generation, as well as for ORDERING INFORMATION Operating Part No. Package Temperature Range XR-2209CN 8 Lead 300 Mil CDIP 0 to +70C XR-2209M 8 Lead 300 Mil CDIP -55C to +125C XR-2209CP 8 Lead 300 Mil PDIP 0C to +70C BLOCK DIAGRAM V BIAS CC 1 5 8 TWO Triangle Wave Out A1 2 C1 Timing 7 SWO Square Wave Out Capacitor VCO 3 C2 A2 6 V EE Timing 4 R Resistor Figure 1. XR-2209 Block Diagram Rev. 2.02 1975 EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 (510) 688-7000 FAX (510) 688-7017 1XR-2209 PIN CONFIGURATION V 1 8 TWO CC 2 7 SWO C1 3 6 V C2 EE 4 5 BIAS TR 8 Lead PDIP, CDIP (0.300) PIN DESCRIPTION Pin Symbol Type Description 1 V Positive Power Supply. CC 2 C1 I Timing Capacitor Input. 3 C2 I Timing Capacitor Input. 4 TR I Timing Resistor. 5 BIAS I Bias Input for Single Supply Operation. 6 V Negative Power Supply. EE 7 SWO O Square Wave Output Signal. 8 TWO O Triangle Wave Output Signal. Rev. 2.02 2