Si47903/04/05/06
High-Performance Automotive AM/FM Radio
Receiver and HD Radio™/DAB/DAB+/DMB/DRM Tuner
Features
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Worldwide FM band support (64–108 MHz)
Worldwide AM band support (520–1710 kHz)
LW band support (144–288 kHz)
SW band support (2.3–30 MHz)
DAB/DAB+/DMB support
(170–240 MHz, 1452–1492 MHz) (Si47905/06 Only)
NOAA Weather Band support (Si47904/06 Only)
On-chip soft-decision RDS/RDBS demodulator/decoder
AM/FM:
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Comprehensive AM/FM signal
processing firmware
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Integrated active AM/FM buffers for
background/data tuners
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Analog FM phase diversity with two, three or four
tuners
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Fully integrated AGC for AM and FM inputs
HD Radio (Si47904/06 only):
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Digital I/Q interface to HD Radio Processor
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HD Radio MRC with two, three, or four tuners
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AM/FM HD Radio IBOC blend
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Fast FM HD Radio band scan
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DAB/DAB+/DMB (Si47905/06 only):
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Digital I/Q interface to DAB/DAB+/DMB processor
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DAB/DAB+/DMB MRC with two, three, or four
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Integrated active Band III/L-band buffers for
background/data tuners
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Fast DAB/DAB+/DMB band scan
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Fully integrated AGC for Band III and L-Band inputs
Two analog audio outputs
Two digital audio ports (I
2
S)
Frequency synthesizer with fully integrated PLL-VCO
Integrated clock oscillator
1.8 V or 3.3 V digital IO power supplies
3.3 V analog power supply and 1.8 V digital power
supply
QFN 48-pin, 7x7x0.85 mm
Pb-free/RoHS compliant
AEQ-Q100 qualified
tuners
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Description
The Si4790x analog AM/FM receiver and digital radio tuner
sets a new standard for automotive broadcast reception.
The Si4790x is the most integrated monolithic IC in the
industry with the smallest external bill of materials. Si4790x
based systems can scale from low-cost single tuner AM/
FM radio to highest performance systems with multiple
tuners and multiple antennas, enabling the radio suppliers
to reuse their R&D across multiple product lines, all with a
common software API. The Si4790x meets rigorous
automotive quality standards.
Applications
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Automotive OEM infotainment systems
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Aftermarket car radio systems
DCLK/GP0
DFS/GP1
DOUT0
LBI
AGC
LNA
DAC
DAC
Audio
Output
Port 0
LBO
Blend
Radio
DSP-2
ADC
B3O
IF AGC
ADC
FMI
AGC
LNA
DEBUGP
DEBUGN
ISFSP
ISFSN
ZIFIOUT
ZIFCLK
ZIFQOUT
ZIFFS
B3I/WXI
AGC
LNA
Radio DSP
FMO
AMVAG
AMI
AGC
LNA
Flash
Interface
SPI/I
2
C
ARM
Cortex M3
DICLK0
DIFS0
DIN0
Audio
Input
Port 0
XTALI
XTALO
AOUT1
CLKO
ICN
ICP
AOUT0
Power
Supplies
VD
VA
VIO1
VIO2
AMO
INTB
RSTB
NVSCLK
NVSSB
NVMOSI
NVMISO
SSB/A1
SCLK/SCL
MOSI/SDA
MISO/A0
SMODE
Si47903/04/05/06
Copyright © 2015 by Silicon Laboratories
3.12.2015
Si47903/04/05/06
High-Performance Automotive AM/FM Radio
Receiver and HD Radio™/DAB/DAB+/DMB/DRM Tuner
Pin Assignments
DCLK/GP0
DFS/GP1
DICLK0
XTALO
47
Package Information
DIFS0
DIN0
ICN
ICP
AOUT1
AOUT0
XTALI
48
CLKO
46
37
45
44
43
42
41
40
39
38
DACREF
B3I/WXI
LBI
FMI
AMO
AMI
AMVAG
FMO
LBO
B3O
ABYP
VA
1
2
3
4
5
6
f
36
35
34
33
32
31
30
29
28
27
26
25
DOUT0
DEBUGP
DEBUGN
ISFSP
ISFSN
ZIFIOUT
ZIFCLK
ZIFQOUT
ZIFFS
VIO2
DBYP
VD
7
8
9
f
10
11
12
Dimensions
A
A1
b
D
D2
e
E
E2
L
aaa
bbb
ccc
ddd
Min
0.80
0.00
0.20
5.20
Nom
0.85
0.03
0.25
7.00 BSC.
5.30
0.50 BSC.
7.00 BSC.
Max
0.90
0.05
0.30
5.40
14
15
16
17
18
19
20
21
22
23
24
Si47903/04/05/06
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.
13
RSTB
SMODE
NVMISO
NVMOSI
NVSSB
NVSCLK
INTB
MISO/A0
MOSI/SDA
SCLK/SCL
Copyright © 2015 by Silicon Laboratories
SSB/A1
VIO1
5.20
0.35
—
—
—
—
5.30
0.40
—
—
—
—
5.40
0.45
0.10
0.10
0.08
0.10
Notes:
1.
All dimensions shown are in millimeters (mm)
unless otherwise noted.
2.
Dimensioning and Tolerancing per ANSI
Y14.5M-1994.
3.
This drawing conforms to JEDEC outline
MO-220, Variation VJJD-2
4.
Recommended card reflow profile is per the
JEDEC/IPC J-STD-020 specification for Small
Body Components.
3.12.2015
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