MTI 3006X VHF/UHF-Tuner IC Bipolar IC 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 P-DSO-20-1 Type Ordering Code Package MTI 3006X Q67000-A5152 P-DSO-20-1 (SMD) MTI 3006X Q67006-A5152 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 from the activated oscillator section and fed to a common IF-stage for all bands. Semiconductor Group 1 12.94 MTI 3006X Pin Configuration (top view) Pin Definitions and Functions Pin No. Symbol Function 1 GND Ground 2 UHF Osc. Input 1 UHF-oscillator amplifier, high-impedance base input, symmetrical to pin 5 3 UHF Osc. Output 1 UHF-oscillator amplifier, high-impedance collector output, symmetrical to pin 4 Semiconductor Group 2 MTI 3006X Pin Definitions and Functions (cont’d) Pin No. Symbol Function 4 UHF Osc. Output 2 UHF-oscillator amplifier, high-impedance collector output, symmetrical to pin 3 5 UHF Osc. Input 2 UHF-oscillator amplifier, high-impedance base input, symmetrical to pin 2 6 VHF Osc. Input 1 VHF-oscillator amplifier, high-impedance base input, symmetrical to pin 9 7 VHF Osc. Output 1 VHF-oscillator amplifier, high-impedance collector output, symmetrical to pin 8 8 VHF Osc. Output 2 VHF-oscillator amplifier, high-impedance collector output, symmetrical to pin 7 9 VHF Osc. Input 2 VHF-oscillator amplifier, high-impedance base input, symmetrical to pin 6 10 Band Switching VHF/UHF-band switching 11 Mixer Output 1 Open collector mixer output, high-impedance, symmetrical to pin 12 12 Mixer Output 2 Open collector mixer output, high-impedance, symmetrical to pin 11 13 + VS Supply voltage 14 VHF Input 1 VHF-mixer input low-impedance, symmetrical to pin 15 15 VHF Input 2 VHF-mixer input low-impedance, symmetrical to pin 14 16 UHF Input 1 UHF-mixer input low-impedance, symmetrical to pin 17 17 UHF Input 2 UHF-mixer input low-impedance, symmetrical to pin 16 18 GND Ground 19 Osc. Output 1 VHF/UHF-oscillator signal output to PLL, symmetrical to pin 20 20 Osc. Output 2 VHF/UHF-oscillator signal output to PLL, symmetrical to pin 19 Semiconductor Group 3 MTI 3006X Block Diagram Semiconductor Group 4 MTI 3006X Absolute Maximum Ratings TA = 0 to 70 °C Parameter Symbol Limit Values min. max. Unit Supply voltage V11, 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 Storage temperature Tstg Thermal resistance Rth – 40 150 °C 125 °C 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 Semiconductor Group 5 MTI 3006X AC/DC Characteristics TA = 25 °C; VS = 12 V Parameter Symbol Current consumption I13 Limit Values min. typ. max. 20 36 28 Unit Test Condition Test Circuit mA V10 > 1.6 V 1 Oscillator output impedance R19, 20 C19, 20 200 2 Ω pF Parallel equivalent circuit Parallel equivalent circuit 2 2 Mixer output impedance R11, 12 C11, 12 10 2 kΩ pF Parallel equivalent circuit Parallel equivalent circuit 2 2 VHF-Circuit Section Switching voltage V10 Switching current I10 Oscillator frequency range fVHF I fVHF II Oscillator drift ∆fVHF ∆fVHF ∆fVHF Oscillator level V19, 20 1.6 10 80 140 2.3 V 1 30 µA V10 = 2.1 V 1 170 450 MHz MHz Vd = 0 … 28 V Vd = 0 … 28 V 1 200 400 200 kHz kHz kHz VS = 12 V ± 10 % ∆T = 25 °C t = 5 s to 15 min. after switching on 1 1 1 – 11 dBm voltage on 50 Ω 1 – 17 – 14 Harmonic wave ratio aH 10 15 dB 1 Crosstalk fin/LO V14/15 150 1000 mVrms max. input level for 10-dB distance fin/LO 1 Mixer gain GVHF 11 14 17 dB 1 Mixer noise figure FVHF I FVHF II 6.5 7.5 11 11 dB dB VHF 1; DSB VHF 2; DSB 1 R14/15 L14/15 25 10 Ω nH serial equivalent circuit serial equivalent circuit 1 1 Mixer input impedance Semiconductor Group 6 MTI 3006X AC/DC Characteristics (cont’d) TA = 25 °C; VS = 12 V Parameter Symbol Limit Values Unit Test Condition Test Circuit 20 dB V14/15 = 80 dBµV 1 fD = 50 MHz fU = 100.5 MHz fD = 200 MHz fU = 400.5 MHz 3 fD = 100 MHz fU1 = 150 MHz fU2 = 160 MHz fD = 200 MHz fU1 = 250 MHz fU2 = 260 MHz 4 fD = 50 MHz fD = 200 MHz 5 5 min. typ. max. VHF-Circuit Section (cont’d) (Design Hints only) IF-suppression aIF IM2 aIM2 60 70 dB aIM2 60 67 dB aIM3 60 65 dB aIM3 60 64 dB aN + 5 aN + 5 50 50 60 60 dB dB Switching voltage V10 3.2 Switching current I10 Oscillator frequency range fUHF Oscillator drift ∆fUHF ∆fUHF ∆fUHF Oscillator level V19, 20 IM3 N + 5 pulling 3 4 UHF-Circuit Section 60 440 ≤ VS V 300 µA V10 = VS 1 900 MHz Vd = 0 … 28 V 1 400 800 200 kHz kHz kHz VS = 12 V ± 10 % ∆T = 25 °C t = 5 s to 15 min. after switching on 1 1 1 – 13 dBm voltage on 50 Ω 1 – 22 – 17 Harmonic wave ratio aH 10 20 dB Crosstalk fin/LO V16/17 150 1000 mVrms Mixer gain GUHF 11 14 Semiconductor Group 17 7 dB 1 1 max. input level for 10-dB distance fin/LO 1 1 MTI 3006X AC/DC Characteristics (cont’d) TA = 25 °C; VS = 12 V Parameter Symbol Limit Values min. typ. Unit Test Condition Test Circuit dB DSB 1 max. Mixer noise figure FUHF 8 Mixer input impedance R16/17 L16/17 25 10 Ω nH serial equivalent circuit serial equivalent circuit 2 2 20 dB V16/17 = 80 dBµV 1 12 UHF-Circuit Section (cont’d) (Design Hints only) IF-suppression aZF IM2 aIM2 60 61 dB fD = 400 MHz fU = 800.5 MHz 3 IM3 aIM3 60 66 dB 4 aIM3 60 70 dB fD = 600 MHz fU1 = 650 MHz fU2 = 660 MHz fD = 850 MHz fU1 = 800 MHz fU2 = 790 MHz aN + 5 aN + 5 50 50 60 60 dB dB fD = 500 MHz fD = 800 MHz 5 5 N + 5 pulling Semiconductor Group 8 4 MTI 3006X Test Circuit 1 Semiconductor Group 9 MTI 3006X Test Circuit 2 Test Point Test Frequency in MHz Pin x Pin y Oscillator output impedance 100 19 20 Mixer input impedance VHF 100 14 15 Mixer input impedance UHF 600 17 18 11 12 Mixer output impedance VHF/UHF 100/600 Semiconductor Group 10 MTI 3006X Test Circuit 3 IM2 (fU – fD) Transfer to fIF Semiconductor Group 11 MTI 3006X Test Circuit 4 IM3 (fU2 – fU1) Transfer to fIF ± (fU2 – fU1) Semiconductor Group 12 MTI 3006X Test Circuit 5 N + 5 Pulling Semiconductor Group 13 MTI 3006X Package Outline GPS05094 Plastic Package, P-DSO-20-1 (SMD) (Plastic Dual Small Outline Package) Sorts of Packing Package outlines for tubes, trays etc. are contained in our Data Book “Package Information” SMD = Surface Mounted Device Semiconductor Group 14 Dimensions in mm