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Si4684-A10 Schematic ( PDF Datasheet ) - Silicon Laboratories

Teilenummer Si4684-A10
Beschreibung FM/DAB/DAB+ RADIO RECEIVER
Hersteller Silicon Laboratories
Logo Silicon Laboratories Logo 




Gesamt 47 Seiten
Si4684-A10 Datasheet, Funktion
Si4684-A10
SINGLE-CHIP, FM/DAB/DAB+ RADIO RECEIVER
Features
Worldwide FM band support Advanced audio DSP processing
(76–108 MHz)
Complete on-chip source decode
Advanced RDS/RBDS decoder I2S digital audio out with ASRC
DAB, DAB+ Band III support
(168–240 MHz)
Integrated 97 dB stereo audio
DAC
Supports WorldDMB Receiver
Profiles 1 and 2
OFDM channel demodulator
Concurrent I2S / L-R stereo audio
out
Full range of analog and digital
Simultaneous decoding of up to 4
service components
signal quality metrics
Seamless dynamic multiplex
Fully-integrated VCO / PLL /
reconfiguration
synthesizer
Integrated SRAM supporting time Fully-integrated advanced AGC
and frequency de-interleaving
and alignment
Advanced seek functionality
SPI, I2C control interfaces
FM sensitivity = 0.7 µV
DAB sensitivity = –101 dBm
WLCSP and QFN packages
Applications
Mobile phones and tablets
Clock and tabletop radios
Personal navigation devices
Stereo boomboxes
Mini/micro systems
Docking stations
Ordering Information:
See page 35.
Patents pending
Description
The Si4684 single-chip digital receiver is one member of a family of 100%
CMOS digital radio broadcast receiver ICs from Silicon Labs. The Si46xx
family provides revolutionary advances in size, power consumption, and
performance to enable high-volume, cost-sensitive multimedia products
to incorporate digital broadcast features. The family offers all-in-one,
ultra-low power, multi-band digital broadcast receivers to support global
analog and digital radio standards including AM, SW, LW, FM, FM RDS,
HD, DAB, DAB+, DMB, and DRM(30).
Rev. 1.0 7/13
Copyright © 2013 by Silicon Laboratories
Si4684-A10






Si4684-A10 Datasheet, Funktion
Si4684-A10
Table 2. DC Characteristics1,2 (Continued)
(TAMB = 25 °C, VA = VIO = VMEM = VCORE = 1.8 V)
Parameter
Symbol
Test Condition
Min Typ Max Unit
I/O Voltages and Currents
High Level Input Voltage4
Low Level Input Voltage4
High Level Input Current4
Low Level Input Current4
High Level Output Voltage5
Low Level Output Voltage5
VIH
VIL
IIH
IIL
VOH
VOL
VIO = 3.6 V
VIO = 3.6 V
IOUT = 500 µA
IOUT = –500 µA
0.7 x VIO
V
V
μA
μA
V
V
Notes:
1. Power states are described in Section “6.5. Reset Timing and Power States” .
2. Characteristics apply to firmware FM 2.0.10 and firmware DAB 1.0.6. For later firmware versions see “Si468x Data
Sheet Addendum”. Parameters are tested in production unless otherwise stated.
3. Guaranteed by characterization.
4. For input pins RSTB, SMODE, SCLK, SSB, MOSI, NVMISO, DCLK and DFS.
5. For output pins INTB, MISO, NVSBB, NVSCLK, NVMOSI and DOUT.
6 Rev. 1.0

6 Page









Si4684-A10 pdf, datenblatt
Si4684-A10
Table 8. DAB Receiver Characteristics1,2,3
(TAMB = –40 to 85 °C, VA = 1.71 to 2.0 V, VIO = 1.62 to 3.6 V, VMEM = VCORE = 1.62 to 2.0 V)
Parameter
Input Frequency4
Input IP34
Sensitivity4
Symbol
Frf
Test Condition
LNA gain = 5 dB
BER = 10-4
LNA gain = 15 dB
First Adjacent Selectivity4,5
Second Adjacent Selectivity4,5
Third Adjacent Selectivity4,5
Ensemble Acquisition Time4,6
BER = 10-4, ±1.712 MHz
BER = 10-4, ±3.424 MHz
BER = 10-4, ±5.136 MHz
For a valid channel, after powerup
RF Level = –47 dBm
Min
168
Typ
103
2.0
–101
46
48
48
940
Max
240
Unit
MHz
dBμV
μV
dBm
dB
dB
dB
ms
Notes:
1. Characteristics apply to firmware DAB 1.0.6. For later firmware versions see “Si468x Data Sheet Addendum”.
Parameters are tested in production unless otherwise stated.
2. Test Setup and Test Conditions are available in “AN651: Si46xx Evaluation Board Test Procedure”. Tested at RF =
195.936 MHz.
3. To ensure proper operation and receiver performance, follow the guidelines in “AN650: Si46xx Schematic and Layout
Guide”. Silicon Laboratories will evaluate schematics and layouts for qualified customers.
4. Guaranteed by characterization.
5. In selectivity measurements, RF blocker used is concord with the mask defined in section 7.3.3.1.1 in EN50248 (2001).
6. Time measured from the completion of the DAB tuning command to the setting of the ACQ bit indicating ensemble
acquisition. For ETI filed used in BER test see AN651.
12 Rev. 1.0

12 Page





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