NTE7129

www.DataSheet4U.com NTE7129 Integrated Circuit IF Signal Processing (Super PLL−II VIF + SIF) Circuit for TVs & VCRs Description: The NTE7129 is an intercarrier−type VIF + SIF integrated circuit in a 24−Lead DIP type package that supports excellent sound and image quality. The pin assignment of the NTE7129 is identical to that of the NTE7130, allowing the NTE7130 to be used for split systems while the NTE7129 is used for intercarrier systems. In addition, the NTE7129 suppresses Nyaquist buzz interference by using a PLL (Phase−Lock Loop) detection system with a buzz canceller in order to provide the best sound quality possible. Features: D Excellent Buzz and Buzz−Beat Characteristics due to PLL D Built−In APC Time Constant Switch D Duplicate Time Constant System Suited for High−Speed AGC D Excellent DG and DP Characteristics D RF AGC Adjustment is Simple Functions: VIF Block D VIF Amplifier D VCO D APC Filter D B/W NC D AFT D IF AGC SIF Block D Limiter Amplifier Mute D Audio Mute (Pin2) D IS−15 Switch (Pin13) D D D D D D PLL Detector Equalizer Amplifier Lock Detection RF AGC APC Detector Buzz Canceller D FM Quadrature Detector D AV Mute (Pin4) Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Maximum Supply Voltage, VCCmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.8V Allowable Power Dissipation (TA ≤ +50°C), Pdmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1200mW Circuit Volta...