NTE1790中文資料NTE數(shù)據(jù)手冊PDF規(guī)格書

Description:

The NTE1790 combines all the functions required for an NTSC color TV system on a 64–Lead DIP shrink type plastic package. This device is designed to have wide application capability, from a fundamental CTV application to a high–end MPX CTV with quasi–parallel SIF system, with minimal external parts and adjustments. A quasi–parallel SIF system assures buzz free sound reproduction.

Features:

PIF Section

? 3–Stage Variable Gain PIF Amplifier

? High Speed Peak AGC with Dual Time Constants

? Single End AFT Output with Defeat Function

? A Delayed RF AGC Output (Reverse AGC)

? Sync Positive Detected Video Output Polarity

? Internal Black/White Noise Inverter Quasi–Parallel Inter Carrier Detector

? 3–Stage Variable Gain Intercarrier IF Amplifier

? Independent Peak AGC

? Intercarrier Detector with 90 deg. Carrier Shifter

SIF Section:

? 3–Stage Limiter Amplifier

? Differential Peak Detector

? Separated Detector Output and Electronic Attenuater Input for Multiplex TV Sound Reception

? Excellent Electronic Attenuater

? Preamplifier with an NF Terminal

Video Section:

? 2nd Order Picture Sharpness (DC Control)

? Contrast Control with Uni–Color Function

? Brightness Control with Pedestal Clamping Circuit (Adjustable DC Restoration Ratio)

? Internal Vertical Blanking

Chroma Section:

? ACC Circuit

? Color Control Circuit

? Uni–Color Control Circuit

? Adjustment Free APC Circuit

? Tint Control Circuit With Sync Pulse Output

? Color Differential Outputs

Deflection Section:

? Excellent Sync Separator

? Adjustment Free Count Down System

? Stable Vertical Synchronization

? Saw–Tooth Type AFC

? Horizontal Pre–Driver

? X–Ray Protector

? Vertical Drive Amplifier