900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




STMicroelectronics Electronic Components Datasheet

TDA7541 Datasheet

AM/FM Car Radio Tuner IC

No Preview Available !

TDA7541
AM/FM car radio tuner IC with stereo decoder
and intelligent selectivity system
Features
FM part
www.DataSheet4U.com
AGC generation by RF and IF detection
I/Q mixer for 1st IF 10.7MHz with image
rejection
Mixer for 2nd IF 450kHz
– Internal 450kHz band pass filter with
bandwidth control by ISS
– Fully integrated FM demodulator with noise
cancellation
AM part
– Wide and narrow AGC generation
– Mixer for 1st IF 10.7MHz, AM upconversion
– Mixer for 2nd IF 450kHz
– Integrated AM-demodulator
– AM IF noise blanking
Stereo decoder
– PLL with adjustment free, fully integrated
VCO
– Automatic pilot dependent
MONO/STEREO switching
– Programmable ROLL-OFF compensation
– High cut and stereo blend-characteristics
programmable
– Dedicated RDS mute
– Audio noise blanker
Additional features
– VCO for world tuning range
LQFP64
– High performance fast PLL for RDS-
System
– IF counter for FM and AM with search stop
signal
– Quality detector for level, deviation,
adjacent channel and multipath
– ISS (Intelligent selectivity system) for
cancellation of adjacent channel and noise
influences
– Adjacent channel mute
– Fully electronic alignment
– Independend weather band input
– All functions I2C bus controlled
Description
The TDA7541 is a high performance tuner circuit
with stereo decoder for AM/FM car radio. It
contains a mixer, IF amplifier, demodulator for AM
and FM, stereo decoder, quality detection, ISS
filter and PLL synthesizer with IF counter on a
single chip. Use of BICMOS technology allows the
implementation of several tuning functions and a
minimum of external components.
Table 1. Device summary
Order code
TDA7541
TDA7541TR
TDA7541W
TDA7541WTR
Package
LQFP64 (10 x 10 x 1.4mm)
LQFP64 (10 x 10 x 1.4mm)
LQFP64 (14 x 14 x 1.4mm)
LQFP64 (14 x 14 x 1.4mm)
Packing
Tray
Tape and reel
Tray
Tape and reel
January 2008
Rev 3
1/76
www.st.com
1


STMicroelectronics Electronic Components Datasheet

TDA7541 Datasheet

AM/FM Car Radio Tuner IC

No Preview Available !

Contents
Contents
TDA7541
1
2
www.DataSheet4U.com
3
4
5
Block circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin connection and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical specifications and characteristics . . . . . . . . . . . . . . . . . . . . 10
3.1 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.1 FM part . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.1.1 Mixer 1 AGC and IF amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.1.2 Mixer2, limiter, FM demodulator and spike cancellation . . . . . . . . . . . . 27
4.1.3 Quality detection and ISS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.1.4 Block diagram quality detection principle . . . . . . . . . . . . . . . . . . . . . . . . 30
4.1.5 Weak signal mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.1.6 Weather band input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.2 AM section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.3 Stereo decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.3.1 Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.3.2 Noise blanker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
4.3.3 Functional description of the multipath detector . . . . . . . . . . . . . . . . . . 37
4.3.4 Quality detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.3.5 AFS control and stereo decoder mute . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.4 PLL and IF counter section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.4.1 PLL frequency synthesizer block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4.4.2 IF counter block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4.5 I2C bus interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Software specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
5.1 Address organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
2/76


Part Number TDA7541
Description AM/FM Car Radio Tuner IC
Maker STMicroelectronics
PDF Download

TDA7541 Datasheet PDF






Similar Datasheet

1 TDA7540B AM/FM Car Radio Tuner IC
STMicroelectronics
2 TDA7540N AM/FM car radio tuner IC
STMicroelectronics
3 TDA7541 AM/FM Car Radio Tuner IC
STMicroelectronics
4 TDA7541B AM/FM Tuners
ST Microelectronics
5 TDA7546 Multichip module
STMicroelectronics





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy