NXP Semiconductors TDA5630BT
The TDA5630BT is a monolithic integrated circuit that performs VHF and UHF mixer/oscillator functions in TV and VCR cable tuners. With a proper oscillator application and by using a switchable inductor to split the VHF band into two sub-bands, the full VHF/UHF TV bands can be covered. This low-power mixer/oscillator requires a power supply of 9 V and is available in a very small package.FEATURES
● Balanced mixer with a common emitter input for band A (single input)● 2-pin oscillator for band A
● Balanced mixer with a common base input for band C
● 3-pin oscillator for band C
● Local oscillator buffer output for external prescaler
● SAW filter preamplifier with a low output impedance to drive a SAW filter
● Band gap voltage stabilizer for oscillator stability
● Electronic band switch.
APPLICATIONS
● Cable tuners for TV and VCR (switched concept for VHF)● Recommended RF bands for Europe: 48.25 to 105.25 MHz, 112.25 to 294.25 MHz and 471.25 to 855.25 MHz
● Recommended RF bands for the USA: 55.25 to 133.25 MHz, 139.25 to 361.25 MHz and 367.25 to 801.25 MHz. QUICK REFERENCE DATA SYMBOL VP IP fRF Gv NF Vo PARAMETER supply voltage supply current frequency range (picture carrier) voltage gain noise figure output voltage to get 1% cross modulation in channel RF input; band A; note 1 RF input; band C; note 1 band A band C band A band C band A band C CONDITIONS − − 45 430 − − − − − − MIN.