NTE7108

NTE7108 Integrated Circuit 1.3GHz Phase Locked Loop w/I2C Bus Description: The NTE7108 is an integrated circuit in an 18–Lead DIP type package and when used in combination with a VCO (tuner), comprises a digital programmable phase–locked loop (PLL) for television devices designed to use the PLL frequency synthesis tuning principle. The PLL provides a crystal–stable frequency for tuner oscillators between 16 ∼ 1300MHz in the 62.5kHz raster. By including an external prescaler 1/2, the component can also be used for synthesizing applications of up to 2.4GHz (e.g. satellite receivers). As a result, the resolution is doubled to 125kHz. The tuning process is controlled via an I2C bus by the microprocessor. Features: D Low Current Consumption D Message Transmission Via I2C Bus D 4 Software–Controlled Outputs D Cost–Effective and Space–Saving Design D Prescaler Output Frequency is Free from Interference Radiation Absolute Maximum Ratings: (Note 1) Supply Voltage, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to 6V Output PD, V1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to VS Crystal Q1, V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3V to VS Crystal Q2, V3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....