TEA5767中文资料Low-power FM stereo radio for handheld applications数据手册恩XP规格书

描述 Description

General description
The TEA5767HN is a single-chip electronically tuned FM stereo radio for low-voltage applications with fully integrated Intermediate Frequency (IF) selectivity and demodulation. The radio is completely adjustment-free and only requires a minimum of small and low cost external components. The radio can be tuned to the European, US, and Japanese FM bands.

特性 Features

■ High sensitivity due to integrated low-noise RF input amplifier
■ FM mixer for conversion to IF of the US/Europe (87.5 MHz to 108 MHz) and Japanese
   (76 MHz to 91 MHz) FM band
■ Preset tuning to receive Japanese TV audio up to 108 MHz
■ RF Automatic Gain Control (AGC) circuit
■ LC tuner oscillator operating with low cost fixed chip inductors
■ FM IF selectivity performed internally
■ No external discriminator needed due to fully integrated FM demodulator
■ Crystal reference frequency oscillator; the oscillator operates with a 32.768 kHz clock
   crystal or with a 13 MHz crystal and with an externally applied 6.5 MHz reference
   frequency
■ Phase-locked loop (PLL) synthesizer tuning system
■ I2C-bus and 3-wire bus, selectable via pin BUSMODE
■ 7-bit IF counter output via the bus
■ 4-bit level information output via the bus
■ Soft mute
■ Signal dependent mono to stereo blend [Stereo Noise Cancelling (SNC)]
■ Signal dependent High Cut Control (HCC)
■ Soft mute, SNC and HCC can be switched off via the bus
■ Adjustment-free stereo decoder
■ Autonomous search tuning function
■ Standby mode
■ Two software programmable ports
■ Bus enable line to switch the bus input and output lines into 3-state mode