Atmel Automotive Broadcast Radio User manual

BROADCAST RADIO
– AM/FM
– DIGITAL RADIO
– MULTIMEDIA
C OMMUNICATIONS S OLUTIONS AUDIO

A TMEL B OADCAST R ADIO S OLUTIONS
Atmel has more than 30 years experi-
ence in designing broadcast radio
solutions, such as AM/FM front-end
devices or active antenna solutions.
One focus area of Atmel's broadcast
radio activities is the car audio seg-
ment. Both Atmel's in-depth radio
know-how and its high quality stan-
dards (ISO 9001 and TS 16949) enable
Atmel to meet the specific quality and
performance requirements in this mar-
ket.
Atmel provides entire car radio system
solutions (baseband and front ends),
and supports design-ins with a broad
range of tools including software and
dedicated reference designs.
Since the number of different anten-
nas is drastically increasing with each
new generation of electronics in cars,
car manufacturers very often face the
problem of finding enough room to
place antennas. This requires them to
find new, space-saving antenna solu-
tions such as window antennas, wind-
screen antennas, and multiband/multi-
E LECTRONIC CAR ANTENNAS
standard antennas. For broadcast
radios, actively driven antennas will help
to solve problems such as amplification
losses and matching issues.
Atmel is well experienced in electronic
car antenna amplifiers and is able to
meet any technical antenna require-
ments.

A
D
DSP
Weak Signal
Processing
Decoder
Audio
Processing
U4256
PLL
T4258
Ceramic
Filter
MNC
FM
Dem.
Soft
Mute
Data
Status &
Control
Ceramic
Filter
AGC RSSI
Typical AM/FM Receiver Using Atmel´s Front-end Solution (Simplified)
Atmel offers highly integrated and high
performance solutions for AM/FM car
radio front ends that cover all frequen-
cy bands world-wide. All Atmel front-
end solutions provide support for an
optimized manufacturing process
(ATA= automated tuner alignment).
AM/FM
Along with the ICs' high integration
level, this enables you to design cost-
optimized solutions.
The so called DIF (digital IF) architec-
ture is currently a basic architectural
approach for car media applications.
As AM/FM will be in existance for long
time in parallel to upcoming digital
modulations (such as DAB, HD Radio
or DRM), the DIF approach is a good
way towards multi-standard solutions.
Atmel's new front-end ICs are multi-
standard solutions since they can be
used for both DIF-based solutions (sup-
porting different baseband solutions), as
well as for any other standard.
As for all other radio solutions, Atmel
provides intensive design-in support,
ranging from real design engineers to
demo boards and evaluation kits as well
as detailed documentation, to speed-up
the time to market.

Atmel provides a full DAB (Eureka 147)
system solution including front end,
baseband and software. This high-per-
formance solution offers designers
maximum flexibility and is able to
address a wide range of different con-
sumer, portable and car media applica-
tions. Thanks to the availability of stan-
dard processors and off-the-shelf tools
from different third parties, design-in
can be simplified.
Atmel's DAB system is a cost-optimized
approach due to its highly integrated
architecture, with power-saving capability
both on the baseband and the front end for
optimized dynamic power consumption.
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D IGITAL R ADIO

The co-existence of the well-known
broadcast radio and new, upcoming
standards will lead to all kinds of
multi-standard solutions. Atmel is
committed to design highly integrated
multi-standard broadcast radio solu-
tions (front end as well as baseband)
that feature high performance and
wide flexibility to support cost-opti-
mized designs. The first activities will
include DRM (Digital Radio Mondiale)
and HD Radio (Ibiquity) as well as
DMB (Digital Multimedia Broad-
casting).
F UTURE T RENDS
DAB RF
Digital
Multimedia
Processor
DAB Baseband
(e.g. ATR2740)
Data
Control
Video Out
DMB System Approach
Since the number of available frequen-
cy bands is limited, the trend will be to
use the same frequency band for mul-
tiple services. Another issue is that
end users are steadily requiring even
more features and functions in the
area of multimedia broadcasting ser-
vices such as DMB (Digital Multimedia
Broadcasting) and DVB (Digital Video
Broadcasting). These requirements will
pave the way to new solutions that are
able to meet this challenge.
M ULTIMEDIA S OLUTIONS

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Rev.: 4621A-AUDIO-10/04/05M