MTI3006X

www.DataSheet4U.com VHF/UHF-Tuner IC MTI 3006X Bipolar IC Features q q q q q q q Few external components Frequency and amplitude-stable balanced oscillator for VHF (I and II) and UHF Mixer stages with optimized suppression of oscillator and input frequency at IF-output Mixer with low intermodulation if large input signals are applied Balanced mixer with wide dynamic range and low-impedance inputs Internal band switch Low-noise, internal reference voltage Ordering Code Q67000-A5152 Q67006-A5152 Package P-DSO-20-1 Type MTI 3006X MTI 3006X P-DSO-20-1 (SMD) P-DSO-20-1 Tape & Reel (SMD) Functional Description and Application This integrated circuit permits the design of TV-tuners covering the entire frequency range from 48 … 900 MHz split into 2 parts with 3 frequency bands. The application is suitable for all tuners in TV-and VCR-sets. Circuit Description This IC includes 2 balanced mixers (double balanced mixer/ring mixer), two balanced oscillators for VHF (I and II) and UHF, a reference voltage source and band switch. Filters between tuner input and IC separate the TV-frequency signal into two bands. The band switch ensures that only one band at a time is activated. In the activated band the signal passes a frontend stage with MOSFET-amplifier, a double-tuned bandpass filter and is then fed to the activated balanced mixer input of the IC which is a low-impedance stage for the VHF- and UHF-range, respectively. The input signal is mixed there with the oscillator signal f...