Silicon Laboratories SI47XX Highly Integrated, Easiest To Implement, Highest Level of Integration

B r o a d c a s t A u d i o S o l u t i o n s

HIGHLY INTEGRATED	Single PCB for All Broadcast Audio Designs
EASIEST TO IMPLEMENT				Footprint Compatible
Highest Level of Integration			The Si47xx family requires only two external components and offers
The Si47xx products are the first fully integrated			many footprint compatible multi-band receivers.
broadcast audio ICs. These solutions require						Si4720/21
only two external components and 15 mm2 or
	Si4702/03					• FM transceiver
less of board space in contrast to dozens of	• FM receiver					• Receive Power Scan (RPS)
external components and as much as five times	• RDS (Si4703)					• RDS (Si4721)
the amount of board space for competing						• Requires no external antenna
products. The high level of integration, small	Si4704/05/06					Si4730/31
footprint and low power consumption enable	• FM receiver
						• AM/FM receiver
the integration of multi-band receivers, FM	• RDS (Si4705/06)
						• RDS (Si4731)
	• Enhanced RDS (Si4706)
receivers, FM transmitters, FM transceivers,					Actual size
	• Requires no external antenna
or data receivers into any consumer device						Si4734/35
such as mobile phones, MP3 accessories,	Si4710/11/12/13					• AM/FM/shortwave/longwave
							receiver
media players, and navigation devices.
	• FM transmitter					• RDS (Si4735)
Best-in-Class Performance	• RDS (Si4711/13)					Si4707/36/37/38/39
	• Receive Power Scan (RPS)					• AM/FM/weather band
The Si47xx family’s excellent selectivity
		(Si4712/13)					receiver
and sensitivity improve user experience
						• RDS (Si4737/39)
and result in reduced interference and						• SAME (Si4707- WB only)
increased reception. Its advanced digital
audio processing delivers optimum sound	RDS and RBDS Support
quality superior to other solutions even in the	The Si47xx family includes a series of solutions that incorporates a digital processor for the European
presence of variable signal conditions, and	Radio Data System (RDS) and the US Radio Broadcast Data System (RBDS) including all required
its digital architecture enables performance	symbol decoding, block synchronization, error detection, and correction functions. Using this feature,
that is unmatched compared to standard	these products enable data such as station identification, artist name, and song title to be transmitted
analog solutions. With advanced AM and FM	to and displayed on any RDS/RBDS receiver. The Si4749/06 incorporate a high-performance
seek algorithms and software programmable	RDS/RBDS decoder based on patented methodologies, and deliver excellent RDS/RBDS sensitivity
audio flexibility, the Si47xx family provides an
	performance, synchronization to RDS/RBDS at high BLER levels and RDS/RBDS data decoding with
unmatched level of performance.
	superior decoder reliability, making them ideal for performance-intensive Traffic Message Channel
Easiest to Design and Manufacture	(TMC) applications in navigation devices.
The Si47xx family is delivered as a fully tested
	Broadcast Audio Product Family
system requiring no factory alignment. Its
	Part Number		Description					RDS Support		Dig I/O
simple hardware design reduces development
	Si4702/03		FM radio receivers						Si4703	—
time, unlike other solutions that require
	Si47041/051		FM radio receiver, no external antenna required						Si4705	Si4705
dozens of components limiting production	Si4706		Enhanced FM RDS/TMC radio receiver, no external antenna required						Si4706	Si4706
flow and adding performance variability	Si4707		Weather band radio receiver with SAME decoder						—	—
across products. Evaluation and design is	Si4708/09		World’s smallest FM tuner with RDS						Si4709	—
easy with a full reference board including	Si4710/11		FM radio transmitter with RDS and digital audio compression						Si4711	Si4711
	Si4712/13		FM radio transmitter with RDS, digital audio compression and RPS						Si4713	Si4713
schematics and layout files and a robust
	Si4720/21		FM radio transceivers with digital audio compression						Si4721	Si4721
development graphical user interface (GUI).
	Si4730/31		AM/FM radio receivers						Si4731	Si4731
These solutions also accept a wide range
	Si47341/351		AM/FM/shortwave/longwave radio receivers						Si4735	Si4735
of antenna inputs from headphone cables	Si4736/37		AM/FM/weather band radio receivers						Si4737	Si47372
to ultra-small ferrites and integrated tuned	Si4738/39		FM/weather band radio receivers						Si4739	Si47392
loops.	Si4749		Enhanced FM RDS/TMC radio receiver, automotive qualified						Si4749	—
	1Extended FM tuning range 64-108 MHz
	2AM/FM only				Silicon Laboratories Inc.
					400 West Cesar Chavez • Austin, TX 78701
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CI, 5000, April 08, Rev B SOL-AUD-2008B