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TEF6701HL Datasheet Car Radio Tuner Front-end

Manufacturer: NXP Semiconductors

Overview: .. TEF6701HL Car radio tuner front-end for digital IF Rev. 01 — 16 November 2004 Product data sheet 1.

General Description

The TEF6701HL is a single chip car radio tuner for AM, FM standard, FM In-Band On-Channel Digital Audio Broadcast (IBOC DAB) and weather band providing gain controlled output of FM IF and AM IF2 for a car IF DSP IC (e.g.

SAA7724H) including the following functions: • AM double conversion tuner for LW/MW/SW (31 m, 41 m and 49 m bands) with IF1 = 10.7 MHz and IF2 = 450 kHz • FM single conversion tuner to an IF frequency of 10.7 MHz with integrated image rejection for US FM, Europe FM, Japan FM, East Europe FM and weather band reception;

all bands can be selected using high side or low side Local Oscillator (LO) injection • Tuning system includes VCO, crystal oscillator and PLL synthesizer on one chip.

Key Features

  • s FM mixer for conversion of FM RF (64 MHz to 108 MHz and US weather band) to an IF of 10.7 MHz; the mixer provides inherent image rejection and can be switched from low injection to high injection Local Oscillator (LO) via the I2C-bus; two different mixer conversion gains can be selected via the I2C-bus s AGC PIN diode drive circuit for FM RF AGC; AGC detection at FM mixer input; the AGC PIN diode drive can be activated via the I2C-bus as a local function for search tuning; AGC threshold is a p.

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TEF6701HL Distributor