Description
The TDA5632 and TDA5633 are monolithic integrated circuits that perform VHF and UHF mixer/oscillator functions in TV and VCR cable tuners.
Features
- Balanced mixer with a common emitter input for band A.
- 2-pin oscillator for band A.
- Balanced mixer with a common base input for band C.
- 4-pin oscillator for band C.
- Local oscillator buffer output for external prescaler.
- SAW filter preamplifier with a low output impedance to drive a 75 Ω load.
- Band gap voltage stabilizer for oscillator stability.
- Electronic band switch.
- External IF filter connected between the mixer.