Description

The CXA3185/3186N 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.

Features

• Low noise figure

• Low power consumption (5 V, 54 mA typ.)

• On-chip tuning PLL (3-wire bus format)

• Selection of frequency steps 31.25 kHz, 50 kHz and 62.5 kHz

• On-chip 4-output band switch

Applications

• TV tuners

• VCR tuners

• CATV tuners