1 General Description
The BK1080H FM receiver employs a
low-IF architecture, mixed signal image
rejection and all digital demodulation
technology. The station scan of
BK1080H searches radio stations based
on both the channel RSSI estimation and
signal quality assessment, increases the
number of receivable stations while
avoids false stops. BK1080H enables
FM radio reception with low power,
small board space and minimum number
of external components.
All functions are controlled through a
simple I2C serial interface. The device
operates from a power supply of 2.5 –
5.5 volts.
The BK1080H is available in 20-pin 3x3
mm QFN and SOP16 packages.
2 Features
z Support 64~108 MHz band
z Auto LC tuning for short antenna
applications.
z Automatic gain control
z Automatic frequency control
z Seek tuning
z Receive signal strength indicator
z Channel quality assessment
z Stereo decoder
z Automatic stereo/mono switching
z Automatic noise suppression
z 50us/75us de-emphasis
z I2S digital output interface(QFN3x3
only)
z 2.5 ~ 5.5 V supply voltage
z Wide range reference clock
supported
z One port 32.768KHz crystal
oscillator supported
z I2C control interface
z 3x3 mm 20-pin QFN package
SOP16-pin package
3 Applications
z Cellular handset
z MP3 player
z PDAs and notebook