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产品信息
Features
Applications
Description
The Si4825 is the entry level mechanical-tuned digital CMOS AM/FM/SW radio
receiver IC that integrates the complete receiver function from antenna input to
audio output. The Si4825 extends Silicon Laboratories multi-band tuner family,
and further increases the ease and attractiveness of design radio reception to
audio devices through small size and board area, minimum component count, and
superior, proven performance. The Si4825 requires a simple application circuit
and removes any requirements for manually tuning components during the
manufacturing process. The receiver has very low power consumption, runs off
two AAA batteries, and delivers the performance benefits of digital tuning to the
analog radio market.
Functional Block Diagram
Worldwide FM band support
(64–109 MHz)
Worldwide AM band support
(504–1750 kHz)
SW band support
(2.3–28.5 MHz)
No manual alignment necessary
Mono audio output
Selectable support AM/FM/SW
regional bands
Enhanced FM/SW band coverage
Automatic frequency control (AFC)
Integrated LDO regulator
2.0 to 3.6 V supply voltage
Wide range of ferrite loop sticks and
air loop antennas supported
16-pin SOIC
RoHS-compliant
Direct volume control
Table and portable radios
Mini/micro systems
CD/DVD players
Boom boxes
Modules
Clock radios
Mini HiFi
Entertainment systems
Applications
Description
The Si4825 is the entry level mechanical-tuned digital CMOS AM/FM/SW radio
receiver IC that integrates the complete receiver function from antenna input to
audio output. The Si4825 extends Silicon Laboratories multi-band tuner family,
and further increases the ease and attractiveness of design radio reception to
audio devices through small size and board area, minimum component count, and
superior, proven performance. The Si4825 requires a simple application circuit
and removes any requirements for manually tuning components during the
manufacturing process. The receiver has very low power consumption, runs off
two AAA batteries, and delivers the performance benefits of digital tuning to the
analog radio market.
Functional Block Diagram
Worldwide FM band support
(64–109 MHz)
Worldwide AM band support
(504–1750 kHz)
SW band support
(2.3–28.5 MHz)
No manual alignment necessary
Mono audio output
Selectable support AM/FM/SW
regional bands
Enhanced FM/SW band coverage
Automatic frequency control (AFC)
Integrated LDO regulator
2.0 to 3.6 V supply voltage
Wide range of ferrite loop sticks and
air loop antennas supported
16-pin SOIC
RoHS-compliant
Direct volume control
Table and portable radios
Mini/micro systems
CD/DVD players
Boom boxes
Modules
Clock radios
Mini HiFi
Entertainment systems