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TDA7701

February 2005

This is preliminary information on a new product now in development. Details are subject to change without notice.

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Main Features

LOW POWER APPLICATIONS

REJECTION MIXER

CHANNEL SELECTION FILTER

STATION SEARCH FUNCTION

INDICATION

AND ADJUSTMENT-FREE STEREO

DECODER

BLEND AND SOFT MUTE

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Description

TDA7701 is a single-chip FM Tuner specifically

designed in mixed Bipolar-CMOS technology for

low-voltage/low-power applications, where the

minimization of external component count and

PCB size and complexity are mandatory: typical

examples are mobile phones and portable multi-

media equipment.

Housed in a small TFBGA40 package (5x5 mm), it

features the full FM signal processing chain from

antenna to stereo audio output: RF front-end pro-

cessing, IF processing, demodulation and stereo

detection.

Its low-IF architecture highly integrated RF/IF sec-

tions include a low-noise preamplifier with Auto-

matic 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 selectiv-

ity and image-rejection performances Thanks to its

on-chip varactor, the tuning-PLL controlled VCO

needs just one external inductor for low phase-

noise 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 fullyin-

tegrated, adjustment-free dedicated PLL; auto-

matic signal-dependent stereo blend and soft-

mute functions are provided.

A single external reference frequency is needed

for IC operation, and can be selected among those

commonly used in GSM applications (13/19.2/26/

38.4 MHz + 32768Hz real-time/sleep clock).

DATA BRIEF

BATTERY-OPERATED FULLY INTEGRATED FM TUNER

Rev. 1

Figure 1. Package

Table 1. Order Codes

Part Number

Package

TDA7701

TFBGA40

TFBGA40