si4737 Silicon Laboratories, si4737 Datasheet

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si4737

Manufacturer Part Number
si4737
Description
Broadcast Am/fm/wb Radio Receiver
Manufacturer
Silicon Laboratories
Datasheet
Description
The Si4736/37 and Si4738/39 are the industry's first
fully integrated, 100% CMOS AM/FM/WB and FM/
WB
integration and PCB space savings, the Si4736/37/
38/39 requires only two external components and
less than 15 mm
antenna inputs. The Si4736/37/38/39 AM/FM/WB
radio provides the space savings and low power
consumption necessary for portable devices while
delivering the high performance and design simplicity
desired for all AM/FM/WB solutions.
Leveraging
patented
intermediate frequency (low-IF) receiver architecture,
the
performance and interference rejection in both AM
and FM bands. The high integration and complete
system
increases
manufacturability.
The Si4736/37/38/39 is a feature-rich solution
including 1050 Hz tone detection, advanced seek
algorithms, soft mute, auto-calibrated digital tuning,
and FM stereo processing. In addition, the Si4736/
37/38/39 provides analog and digital audio outputs
and a programmable reference clock. The device
supports I
SPI, and a Si4700/01 backwards-compatible, 3-wire
control interface.
The Si4736/37/38/39 utilizes digital processing to
achieve high fidelity, optimal performance, and
design flexibility. The chip provides excellent pilot
rejection,
performance, and offers both the manufacturer and
the end-user extensive programmability and flexibility
in listening experience.
The Si4737/39 incorporates a digital processor for
the European Radio Data System (RDS) and the
North American Radio Broadcast Data System
AM/FM/WB Receiver
radio
Si4736/37/38/39
production
2
Si4700/01
C-compatible, 2-wire control interface,
selectivity,
system
receiver
Silicon
2
of board area, excluding the
Laboratories'
test
ICs.
FM
quality,
and
delivers
simplifies
tuner's
Offering
2.7– 5.5 V
unmatched
ANT
FM/
WB
ANT
AM
Copyright © 2008 by Silicon Laboratories
and
superior
RFGND
proven
GND
VDD
AMI
FMI
digital
unmatched
design-in,
improves
LNA
LNA
AGC
AGC
LDO
audio
and
low
RF
Broadcast AM/FM/WB Radio Receiver
AFC
(RBDS), and includes all required symbol decoding,
block synchronization, error detection, and error
correction functions. Using this feature, the Si4737/
39
identification and song name to be displayed to the
user.
Features
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Applications
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ADC
ADC
Weather band support (162.4–162.55 MHz)
Worldwide FM band support (76–108 MHz)
Worldwide AM band support (520–1710 kHz)
(Si4736/7)
1050 Hz tone detection
AM/FM/WB digital tuning
No manual alignment necessary
Excellent real-world performance
Dynamic channel filters
Advanced AM/FM seek tuning
Digital volume control
Adjustable soft mute control
Frequency synthesizer with integrated VCO
Automatic frequency control (AFC)
Automatic gain control (AGC)
Programmable de-emphasis
Integrated LDO regulator
Programmable reference clock
FM RDS/RBDS processor (Si4736/7)
2-wire and 3-wire control interface
2.7 to 5.5 V supply voltage
3 x 3 x 0.55 mm 20-pin QFN package
Emergency radios
Table and portable radios
Stereos
Mini/micro systems
Portable media players
Handsets
Boom boxes
Clock radios
-
(Si4737/
LOW-IF
enables
RDS
DSP
39)
Pb-free/RoHS compliant
INTERFACE
CONTROL
Si473x
DIGITAL
(Si4737/
AUDIO
DAC
DAC
39)
broadcast
DOUT
GPO/DCLK
ROUT
LOUT
VIO
1.5–3.6 V
DFS
Si4736/7/8/9
data
such
as
01.7.08
station

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si4737 Summary of contents

Page 1

... The Si4737/39 incorporates a digital processor for the European Radio Data System (RDS) and the North American Radio Broadcast Data System AM ANT FM/ WB ANT 2.7– ...

Page 2

... GND 6 11 VDD AM/FM/WB Receiver Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc. Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders. Broadcast AM/FM/WB Radio Receiver Test Condition f RF (S+N)/ (S+N)/ – > 1 MHz – ...

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