(S) MOTOROLA PLL FREQUENCY SYNTHESIZERS The MC145104, MC145107, MC145109, and MC145112 are phase locked toop (PLL) frequency synthesizer parts constructed with CMOS devices on a single monolithic structure. These synthesizers find ap- plications in such areas as CB and FM transceivers. The device contains an oscillator/amplifier, a 210 or 211 divider chain for the oscillator signal, a programmable divider chain for the input signal and a phase detector. The MC145104/5112 have circuitry for a 10.24 MHz oscillator or may operate with an external signal. The MC145107/5109 require the external reference signal. Several of the circuits provide a 5.12 MHz out- put signal, which can be used for frequency tripling. A 29 (MC145109/5112) or 28 (MC145104/5107) programmable divider divides the input signal frequency for channel selection. The inputs to the pro- grammable divider are standard ground-to-supply binary signals. Pull- down resistors on these inputs normally set these inputs to ground enabling these programmable inputs to be controlled from a mechanical switch or electronic circuitry. The phase detector may control a VCO and yieids a high level signal when input frequency is low, and a low levei signal when input frequen- cy is high. An out of Jock signal provided from the on-chip tock detector with a O level for the out of jock condition. Single Power Supply Wide Supply Range: 4.5 to 12 V 16 or 18 Pin Plastic Packages 40,24 MHz Oscillator on Chip 5.12 MHz Output Programmable Division Binary Input Selects up to 29 On-Chip Pull Down Resistors on Programmable Divider Inputs Selectable Reference Divider, 210 or 211 MC145104 MC145107 MC145109 MC145112 CMOS MSI (LOW-POWER COMPLEMENTARY MOS) PLL FREQUENCY SYNTHESIZERS 1 P SUFFIX PLASTIC PACKAGE CASE 648 P SUFFIX PLASTIC PACKAGE CASE 707 NOT RECOMMENDED FOR NEW DESIGNS PRODUCT BEING PHASED OUT Closest equivalent is the MC145106 This device contains circuitry to protect the inputs against damage due to high static voltages or electric fields; however, it is advised that normal precautions be taken to avoid application of any voltage higher than maximum rated voltages to this high impedance circuit. For proper operation it is recommended that V\, and Vg), be constrained to the range Vss S (Vin or Vv out < Yop: 6-28