MC44818

Order this document by MC44818/D MC44818 PLL Tuning Circuit with I2C Bus The MC44818 is a tuning circuit for TV and VCR tuner applications. It contains, on one chip, all the functions required for PLL control of a VCO. This integrated circuit also contains a high frequency prescaler and thus can handle frequencies up to 1.3 GHz. The MC44818 is a pin compatible drop in replacement for the MC44817, where the only difference is the MC44818 has a fixed divide–by–8 prescaler (cannot be bypassed) and the MC44817 uses the three wire bus. The MC44818 has a programmable 512/1024 reference divider and is manufactured on a single silicon chip using Motorola’s high density bipolar process, MOSAIC™ (Motorola Oxide Self Aligned Implanted Circuits). Complete Single Chip System for MPU Control (I2C Bus). Data and Clock Inputs are 3–Wire Bus Compatible Divide–by–8 Prescaler Accepts Frequencies up to 1.3 GHz TV AND VCR PLL TUNING CIRCUIT WITH 1.3 GHz PRESCALER AND I2C BUS SEMICONDUCTOR TECHNICAL DATA 15 Bit Programmable Divider Accepts Input Frequencies up to 165 MHz Reference Divider: Programmable for Division Ratios 512 and 1024. 3–State Phase/Frequency Comparator Operational Amplifier for Direct Tuning Voltage Output (30 V) Four Integrated PNP Band Buffers for 40 mA (VCC1 to 14.4 V) Output Options for the Reference Frequency and the Programmable Divider High Sensitivity Preamplifier Circuit to Detect Phase Lock Fully ESD Protected 16 1 D SUFFIX PLASTIC PACKAGE CAS...