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參數(shù)資料
| 型號： | NTE1786 |
| 廠商： | NTE Electronics, Inc. |
| 英文描述： | Quad Differential Comparator 14-SOIC 0 to 70 |
| 中文描述： | 集成電路頻率鎖定環(huán)（FLL）調(diào)整 |
| 文件頁數(shù)： | 1/5頁 |
| 文件大?。?/td> | 39K |
| 代理商： | NTE1786 |
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:
Combined Analog and Digital Circuitry Minimizes the Number of Additional Interfacing Components
Required
Frequency Measurement with Resolution of 50kHz
Selectable Prescaler Divisor of 64 or 256
32V Tuning Voltage Amplifier
4 High–Current Outputs for Direct Band Selection
4 Static Digital–to–Analog Convertors (DACs) for Control of Analog Functions
4 General Purpose Input/Output (I/O) Ports
Tuning with Control of Speed and Direction
Tuning with or without AFC
Single–Pin, 4MHz On–Chip Oscillator
I
2
C Bus Slave Transceiver
Applications:
TV Receivers
Satellite Receivers
CATV Converters
Absolute Maximum Ratings:
Supply Voltage Ranges,
Pin13, V
CC1
Pin19, V
CC2
Pin14, V
CC3
–0.3 to +18V
–0.3 to +18V
–0.3 to +36V
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