IC PAR-IN PLL FREQ SYNTH 28-SOIC
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
