MTI3006X

Features:

·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


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.


Pinout




Specifications

Parameter	Symbol	Limit Values		Unit
		min.	max.
Supply voltage	V 11, 12, 13	0.3	14.5	V
Switching voltage	V10	0.3	VS	V

According to the test circuit 1, only the provided circuitry can be connected to pins 1 to 9 and 14 to 20

Junction temperature	Tj		150	°C
Storage temperature	Tstg	40	125	°C
Thermal resistance	Rth		125	K/W

Operating Range

Supply voltage	VS	10	13.2	V
VHF-mixer input frequency range	fVHF	30	500	MHz
UHF-mixer input frequency range	fUHF	30	900	MHz
VHF-oscillator frequency range	fOVHF	30	500	MHz
UHF-oscillator frequency range	fOUHF	30	900	MHz
Ambient temperature	TA	0	70	°C

Description

The MTI3006X 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 MTI3006X 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 of MTI3006X is mixed there with the oscillator signal from the activated oscillator section and fed to a common IF-stage for all bands.