The devices described in this document are typically used as low-power, phase-locked loop frequency synthesizers. When combined with an external low-pass filter and voltage-controlled oscillator, these devices can provide all the remaining functions for a PLL frequency synthesizer operating up to the device"s frequency limit. For higher VCO frequency operation, a down mixer or a prescaler can be used between the VCO and the synthesizer IC.
●These frequency synthesizer chips can be found in the following and other applications:
●CATV TV Tuning
●AM/FM Radios Scanning Receivers
●Two-Way Radios Amateur Radio
●Features
●• Operating Temperature Range: - 40 to 85°C
●• Low Power Consumption Through Use of CMOS Technology
●• 3.0 to 9.0 V Supply Range
●• On- or Off-Chip Reference Oscillator Operation
●• Lock Detect Signal
●• ÷ N Counter Output Available
●• Single Modulus/Parallel Programming
●• 8 User-Selectable ÷ R Values: 8, 128, 256, 512, 1024, 2048, 2410, 8192
●• ÷ N Range = 3 to 16383
●• “Linearized” Digital Phase Detector Enhances Transfer Function Linearity
●• Two Error Signal Options: Single-Ended (Three-State) or Double-Ended
●• Chip Complexity: 8000 FETs or 2000 Equivalent Gates
