TDA7511屬于RF/IF射頻/中頻RFID的射頻接收器。由意法半導(dǎo)體集團(tuán)制造生產(chǎn)的TDA7511射頻接收器RF 接收器用于接收已調(diào)制的射頻信號并對其進(jìn)行解調(diào)，然后將數(shù)據(jù)傳送到系統(tǒng)中進(jìn)行處理。頻率范圍是 AM、FM、WB、0 Hz 至 64 GHz，數(shù)據(jù)速率為 250 bps 至 16 Gbps，數(shù)據(jù)接口包括連接器、I2C、I2S、引腳焊盤、并行、PCB、串行、焊盤、SPI、UART 和 USB。

DESCRIPTION

The TDA 7511 is a high performance tuner circuit for AM/FM car radio. It contains mixers, IF amplifiers, demodulators for AM and FM, quality detection, ISS filter and PLL synthesizer with IF counter on a singlechip.

Use of BICMOS technology allows the implementation of several tuning functions and a minimum of external components.

FM-PART

■ RF AGC GENERATION BY RF AND IF DETECTION FOR PIN DIODES AND MOSFET(PRESTAGE)

■ 1ST MIXER FOR 1ST FM IF 10.7MHz WITH PROGRAMMABLE IF TANK ADJUST FOR FM AND AM UPCONVERSION

■ 2 PROGRAMMABLE IF-GAIN STAGES

■ 2ND MIXER FOR 2ND IF 450KHz

■ INTERNAL IF BANDPASS FILTER WITH THREE BANDWIDTHS CONTROLLED BY ISS (INCLUDING WEATHER BAND)

■ FULLY INTEGRATED FM-DEMODULATOR

AM-PART

■ WIDE AND NARROW AGC GENERATION

■ PREAMPLIFIER AND MIXER FOR 1ST IF 10.7MHZ, AM UPCONVERSION

■ 2ND MIXER FOR 2ND IF 450KHZ

■ INTEGRATED AM-DEMODULATOR

■ OUTPUT FOR AM-STEREO-DECODER

ADDITIONAL FEATURES

■ HIGH PERFORMANCE FAST PLL FOR RDS SYSTEM

■ IF COUNTER FOR FM AND AM UPCONVERSION WITH SEARCH STOP SIGNAL

■ QUALITY DETECTOR FOR LEVEL, DEVIATION, ADJACENT CHANNEL AND MULTIPATH

■ QUALITY DETECTION INFORMATIONS AS ANALOG SIGNALS EXTERNAL AVAILABLE

■ ISS (INTELLIGENT SELECTIVITY SYSTEM) FOR CANCELLATION OF ADJACENT CHANNEL AND NOISE INFLUENCES

■ ADJACENT CHANNEL MUTE

■ FULLY ELECTRONIC ALIGNMENT

■ ALL FUNCTIONS I2C-BUS CONTROLLED

■ ISS FILTER STATUS INFORMATION I2C-BUS READABLE