TDA7701

www.DataSheet4U.com TDA7701 BATTERY-OPERATED FULLY INTEGRATED FM TUNER DATA BRIEF 1 ■ ■ Main Features SINGLE-CHIP FM TUNER FOR LOW-VOLTAGE/ LOW POWER APPLICATIONS INTEGRATED LNA (WITH AGC) AND IMAGE REJECTION MIXER LOW-IF ARCHITECTURE WITH ON-CHIP CHANNEL SELECTION FILTER VCO WITH ON-CHIP VARACTOR INTEGRATED TUNING PLL WITH AUTO STATION SEARCH FUNCTION ANALOG AND DIGITAL SIGNAL STRENGTH INDICATION FULLY INTEGRATED FM DEMODULATOR AND ADJUSTMENT-FREE STEREO DECODER PROGRAMMABLE AUTOMATIC STEREO BLEND AND SOFT MUTE I2C/SPI-BUS CONTROLLED LOW POWER CONSUMPTION HIGH SENSITIVITY HIGH AUDIO QUALITY Figure 1. Package TFBGA40 ■ Table 1. Order Codes Part Number TDA7701 Package TFBGA40 ■ ■ ■ ■ decoding, I2C/SPI-controlled tuning with station detection. Its low-IF architecture highly integrated RF/IF sections include a low-noise preamplifier with Automatic Gain Control, an image rejection mixer and on-chip high-Q channel selection filters that bring to a minimum the external component count and PCB complexity while guaranteeing good selectivity and image-rejection performances Thanks to its on-chip varactor, the tuning-PLL controlled VCO needs just one external inductor for low phasenoise oscillation. FM demodulation is performed by means of a fully integrated circuit that eliminates the need for an external LC tank while maximizing linearity. The FM stereo signal is decoded through a fullyintegrated, adjustment-free dedicated PLL; automatic signal-dependent stereo blend and s...