TDA7540B STMicroelectronics, TDA7540B Datasheet - Page 5

• Manufacturer Part Number: TDA7540B
• Manufacturer: STMicroelectronics

Specifications of TDA7540B

• Case: TQFP
• Dc: 06+
• Lead Free Status / Rohs Status: Compliant

DOCUMENT CD00108485
Copyright STMicroelectronics
Features
FM-Part
■
■
■
■
■
AM-Part
■
■
■
■
■
Stereodecoder
■
■
■
■
■
■
Order codes
May 2006
RF AGC generation by RF and IF detection
I/Q mixer for 1st FM IF 10.7MHz with image
rejection
Mixer for 2nd IF 450kHz
Internal 450KHz bandpass filter with bandwidth
control by ISS
Fully integrated FM-demodulator with spike
cancellation
Wide and narrow AGC generation
Mixer for 1st IF 10.7MHz, AM upconversion
Mixer for 2nd IF 450kHz, AM downconversion
Integrated AM-demodulator
AM IF- and audio noise blanking
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
Internal noise blanker with several threshold
controls
Part number
TDA7540B
REVISION 1.0
AM/FM Car Radio Tuner IC with Stereo Decoder and
Temp range, °C
-40 to 85
COMPANY INTERNAL
ACTIVE
Rev 1
Intelligent Selectivity System (ISS)
Additional Features
■
■
■
■
■
■
■
■
Description
The TDA7540 is a high performance tuner circuit
for AM/FM car radio. It contains mixer, IF
amplifier, demodulator for AM and FM,
stereodecoder, 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.
VCO for world tuning range
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
All functions I
Package
TQFP80
2
C-Bus controlled
TQFP80
Unauthorized reproduction and communication strictly prohibited
DATE 11-May-2006
TDA7540B
Packing
Tube
www.st.com
1/75
page: 1/75
75