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TDA5634T Fiches technique(PDF) 2 Page - NXP Semiconductors |
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TDA5634T Fiches technique(HTML) 2 Page - NXP Semiconductors |
2 / 20 page 1996 Nov 7 2 Philips Semiconductors Product specification 9 V UHF mixer/oscillator for TV and VCR tuners TDA5634T FEATURES • Balanced mixer with a common base input • 4-pin oscillator • Local oscillator buffer output for external prescaler • SAW filter preamplifier with a low output impedance to drive the SAW filter directly • Band gap voltage stabilizer for oscillator stability • External IF filter between the mixer output and the IF amplifier input. APPLICATION • UHF tuners for TV and VCR • One band tuners. GENERAL DESCRIPTION The TDA5634T is an integrated circuit that performs the UHF mixer/oscillator functions in TV and VCR tuners. This low-power mixer/oscillator requires a power supply of 9 V and is available in a very small package. The device gives the designer the capability to design an economical and physically small tuner. The tuner development time can be drastically reduced by using this device. The frequency band is determined by the external tank circuit. It can be adapted to various standards. QUICK REFERENCE DATA Note 1. The limits are related to the tank circuits used in Fig.7 and the intermediate frequency. Frequency bands may be adjusted by the choice of external components. ORDERING INFORMATION SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT VP supply voltage − 9.0 − V IP supply current − 35 − mA fRF RF frequency RF input; note 1 430 − 860 MHz Gv voltage gain − 36 − dB NF noise figure not corrected for image − 9 − dB Vo output voltage causing 1% cross modulation in channel − 121 − dB µV TYPE NUMBER PACKAGE NAME DESCRIPTION VERSION TDA5634T SO16 plastic small outline package; 16 leads; body width 3.9 mm SOT109-1 |
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