Atmel Automotive Broadcast Radio User Manual

B ROADCAST R ADIO
– AM/FM
– D
IGITAL R ADIO
– MULTIMEDIA
C
OMMUNICATIONSSOLUTIONS
AUDIO
A
TMELBOADCASTRADIOSOLUTIONS
Atmel has more than 30 years experi­ence 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 seg­ment. Both Atmel's in-depth radio know-how and its high quality stan­dards (ISO 9001 and TS 16949) enable
Atmel to meet the specific quality and performance requirements in this mar­ket.
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 anten­nas 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 solu­tions such as window antennas, wind­screen 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 require­ments.
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 frequen­cy bands world-wide. All Atmel front­end 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 cost­optimized solutions.
The so called DIF (digital IF) architec­ture 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 multi­standard solutions since they can be
used for both DIF-based solutions (sup­porting 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-per­formance solution offers designers maximum flexibility and is able to address a wide range of different con­sumer, portable and car media applica­tions. Thanks to the availability of stan­dard 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
IGITALRADIO
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
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
DAB RF
DAB Baseband
(e.g. ATR2740)
DMB System Approach
Data
Control
Digital
Multimedia
Processor
Video Out
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Rev.: 4621A-AUDIO-10/04/05M
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