XR-210

The XR-210 has the following features including Wide Frequency Range is 0.5 Hz to 20 MHz;Wide Supply Voltage Range is 5V to 26V;Digital Programming Capability;RS-232C CompatibleDemodulator Output;DTL, TTL and ECL Logic Compatibility;Independent "Mark" and "Space";Frequency Adjustment;VCO Duty Cycle Control.

The XR-210 is a highly versatile monolithic phase-locked loop system, especially designed for data communications. It is particularly well suited for FSK modulation/demodulation (MODEM) applications,frequency synthesis, tracking filters, and tone decoding. The XR-210 operates over a power supply range of 5V to 26V, and over a frequency band of 0.5 Hz to 20 MHz. The circuit can accommodate analog signals between 300wV and 3V, and can interface with conventional DTL, TTL, and ECL logic families.The XR-210 is made up of a stable wide-range voltage-controlled oscillator (VCO), exclusive OR gate type phase detector, and an analog voltage comparator. The VCO, which produces a square wave as an output, is either used in conjunction with the phase detector to form a phase-locked loop (PLL) for FSK demodulation and tone detection or as a generator in FSK modulation schemes. The phase detector when used in the PLL configuration produces a differential output voltage with a 6 K output impedance, which when capacitively loaded forms a single pole loop filter. The voltage comparator is used to sense the phase detector output and produces the output in the FSK demodulation connection.

The XR-210 is desgined for Data Synchronization,Signal Conditioning,FSK Generation,Tone Decoding,Frequency Synthesis,FSK Demodulation,Tracking Filter,FM Detection,FM and Sweep Generation,Wideband Discrimination.The products described in this document are designed, developed and manufactured as contemplated for general use, including without limitation, ordinary industrial use, general office use, personal use, and household use, but are not designed, developed and manufactured as contemplated (1) for any use that includes fatal risks or dangers that, unless extremely high safety is secured, could have a serious effect to the public, and could lead directly to death, personal injury, severe physical damage or other loss (i.e., nuclear reaction control in nuclear facility, aircraft flight control, air traffic control, mass transport control, medical life support system, missile launch control in weapon system), or (2) for any use where chance of failure is intolerable (i.e., submersible repeater and artificial satellite).