SI4685-A10 Datasheet, PDF (1/3 Pages) Silicon Laboratories – Single-Chip, AM/FM/DAB/DAB Radio Receiver

Si4685-A10
Single-Chip, AM/FM/DAB/DAB+ Radio Receiver
Description
The Si4685 single-chip digital receiver is one member of a
family of 100% CMOS digital radio broadcast receiver ICs
from Silicon Labs. The Si468x family offers a complete and
cost-effective digital radio solution integrating the RF tuner,
baseband and audio processing on a single die. The high
level of integration provides significant customer benefits
compared to traditional digital radio solutions, including a
reduction in system implementation complexity, validation
and testing, and improved reliability and manufacturability.
The Si4685 offers VHF Band III (168-240 MHz) reception
capability and is fully compliant with ETSI EN 300 401 and
ETSI TS 102 563. The Si4685 supports DAB and DAB+ via
an integrated source decoder that supports both MPEG
Audio Layer 2 (DAB) and HE-AAC V2 (DAB+). The Si4685
supports data services such as Dynamic Labels, Intellitext,
Electronic Program Guide (EPG), Slideshow and
Journaline® with the appropriate external decoders.
The Si4685 additionally supports worldwide AM/FM radio
reception and incorporates a fully integrated decoder for
the European Radio Data System (RDS) and the North
American Radio Broadcast Data System (RDBS) including
all required symbol decoding, block synchronization, error
detection, and error correction functions.
For more information, visit the Si468x Digital Radio
Receivers web page.
Features
- Worldwide FM band support (76–108 MHz)
- Worldwide AM band support (520–1710 kHz)
- Advanced RDS/RBDS decoder
- DAB, DAB+ Band III support (168–240 MHz)
- Supports WorldDMB Receiver Profiles 1 and 2
- Integrated OFDM channel demodulator
- Integrated de-interleaving SRAM
- I²S digital audio out with ASRC
- Integrated 97 dB stereo audio DAC
- Concurrent I²S/L-R stereo audio out
- Full range of signal quality metrics
- Fully-integrated VCO / PLL / synthesizer
- SPI and I²C host control interfaces
- QFN 48-pin, 7x7x0.85 mm
Applications
- Clock and tabletop radios
- Stereo boomboxes
- Mini/micro systems
- Docking stations
LOOPP
LOOPN
RFREF
VHFI
VHFSW
AGC
LNA
LNA
AGC
VHF SW
LDOs
Si4685-A10
ADC
ADC
CLK
Gen
DAC
DSP
DAC
RDS
I2S
FLASH
Interface
Control
LOUT
ROUT
DCLK
DFS
DOUT
SCLK
SSB
MISO
MOSI
Digital Radio Receiver
Copyright © 2014 by Silicon Laboratories
8.11.2014