NTE1786
NTE1786 is Integrated Circuit Frequency Lock Loop (FLL) Tuning & Controller manufactured by NTE Electronics.
Description
: The NTE1786 is an integrated circuit in a 24- Lead DIP type package that provides closed- loop digital tuning of TV receivers, with or without AFC, as required. This device also controls up to 4 analog functions, 4 general purpose I/O ports and 4 high- current outputs for tuner band selection. Features
: D bined Analog and Digital Circuitry Minimizes the Number of Additional Interfacing ponents Required D Frequency Measurement with Resolution of 50k Hz D Selectable Prescaler Divisor of 64 or 256 D 32V Tuning Voltage Amplifier D 4 High- Current Outputs for Direct Band Selection D 4 Static Digital- to- Analog Convertors (DACs) for Control of Analog Functions D 4 General Purpose Input/Output (I/O) Ports D Tuning with Control of Speed and Direction D Tuning with or without AFC D Single- Pin, 4MHz On- Chip Oscillator D I2C Bus Slave Transceiver Applications: D TV Receivers D Satellite Receivers D CATV Converters Absolute Maximum Ratings: Supply Voltage Ranges, Pin13, VCC1
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- 0.3 to +18V Pin19, VCC2
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- 0.3 to +18V Pin14, VCC3
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- 0.3 to +36V
Absolute Maximum Ratings (Cont’d): Input/Output Voltage Ranges, Pin2, VSDA
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- 0.3 to +18V Pin3, VSCL
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- 0.3 to +18V Pin4 to Pin7, VP2X
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