CXA3555N Overview
The CXA3555N is a monolithic TV tuner IC which integrates local oscillator and mixer circuits for VHF band, local oscillator and mixer circuits for UHF band, an IF amplifier and a tuning PLL onto a single chip, enabling further miniaturization of the tuner.
CXA3555N Key Features
- Low power consumption (5V, 63mA typ.)
- Low noise figure, low distortion characteristics
- High gain/low gain selectable
- Supports IF double-tuned/adjacent channel trap
- Balanced oscillator circuits (3 sets) with excellent oscillation stability
- On-chip PLL supports I2C bus
- On-chip high voltage drive transistor for charge pump
- Frequency step selectable from 31.25, 50 or 62.5kHz (when using a 4MHz crystal)
- Low-phase noise synthesizer
- On-chip 4-output band switch (output voltage: 5V, current capacity: 5mA)