NTE1790 Datasheet | NTE Electronics

Description : The NTE1790 bines 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 D 3- Stage Variable Gain PIF Amplifier D High Speed Peak AGC with Dual Time Constants D Single End AFT Output with Defeat Function D A Delayed RF AGC Output (Reverse AGC) D Sync Positive Detected Video Output Polarity D Internal Black/White Noise Inverter Quasi- Parallel Inter Carrier Detector D 3- Stage Variable Gain Intercarrier IF Amplifier D Independent Peak AGC D Intercarrier Detector with 90 deg. Carrier Shifter SIF Section: D 3- Stage Limiter Amplifier D Differential Peak Detector D Separated Detector Output and Electronic Attenuater Input for Multiplex TV Sound Reception D Excellent Electronic Attenuater D Preamplifier with an NF Terminal Video Section: D 2nd Order Picture Sharpness (DC Control) D Contrast Control with Uni- Color Function D Brightness Control with Pedestal Clamping Circuit (Adjustable DC Restoration Ratio) D Internal Vertical Blanking Chroma Section: D ACC Circuit D Color Control Circuit D Uni- Color Control Circuit D Adjustment Free APC Circuit D Tint Control Circuit With Sync Pulse Output D Color Differential Outputs Deflection Section: D Excellent Sync Separator D Adjustment Free Count Down System D Stable Vertical Synchronization D Saw- Tooth Type AFC D Horizontal Pre- Driver D X- Ray Protector D Vertical Drive Amplifier Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage, VCC - - - - - - - - - - - - . . . . 12V Input Signal Level, ein - - - - - - - -...