Datasheet > NTE1786

NTE1786

更新时间： 2024-10-31 22:54:23

品牌	Logo	应用领域
NTE		/
页数	文件大小	规格书
5页	42K
描述
Integrated Circuit Frequency Lock Loop (FLL) Tuning & Control Circuit

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NTE1786 技术参数

NTE1786

Integrated Circuit

Frequency Lock Loop (FLL)

Tuning & Control Circuit

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 func-

tions, 4 general purpose I/O ports and 4 high–current outputs for tuner band selection.

Features:

D Combined Analog and Digital Circuitry Minimizes the Number of Additional Interfacing Components

Required

D Frequency Measurement with Resolution of 50kHz

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, V_CC1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 to +18V

Pin19, V_CC2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 to +18V

Pin14, V_CC3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 to +36V

12 3 4 5

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