Si47911/12 Data Short

Si47911/12
High-Performance Automotive AM/FM Radio Receiver and
HD Radio™/DAB/DAB+/DMB/DRM Tuner with Audio System
Features
- DAB/DAB+/DMB (Si47912 only):
- Digital I/Q interface to DAB/DAB+/DMB processor
- DAB/DAB+/DMB MRC with two, three, or four tuners
- Integrated active Band III/L-band buffers for 
-
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) (Si47912 only)
- NOAA Weather Band support
- On-chip soft-decision RDS/RDBS demodulator/decoder
- AM/FM:
background/data tuners
- Fast DAB/DAB+/DMB band scan
- Fully integrated AGC for Band III and L-Band inputs
- Audio:
- HiFi2-EP Audio-DSP with 288 kB for program and data
memory
Seven analog audio inputs
Six analog audio outputs
Seven digital audio ports (I2S) with TDM support
Up to 24 synchronous or asynchronous sample rate
converters
-
- Comprehensive AM/FM signal processing firmware
- Integrated active AM/FM buffers for background/data
tuners
- Analog FM phase diversity with two, three or four 
tuners
-
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 84-pin, 12x12x0.85 mm
- Pb-free/RoHS compliant
- Fully integrated AGC for AM and FM inputs
- HD Radio:
- Digital I/Q interface to HD Radio Processor
- HD Radio MRC with two, three, or four tuners
- AM/FM HD Radio IBOC blend
- Fast FM HD Radio band scan
- AEQ-Q100 qualified'
LBI
AGC
LNA
AGC
LNA
DIN1
DICLK1
DIFS1
DIN2
DICLK2
DIFS2
DIN3
DICLK3
DIFS3
ICN
XTALO
XTALI
DIFS0
DICLK0
DIN0
ICP
AOUT0
AOUT2
AOUT3
AOUT1
DAC
DAC
DAC
DAC
DAC
DAC
CLKO
AOUT4
- Automotive OEM infotainment systems
- Aftermarket car radio systems
DACREF
Applications
The Si47911/12 integrates global radio receiver with audio
processing. The analog AM/FM receiver sets a new standard
for automotive broadcast reception. The integrated audio
processing sub-system provides a complete solution to
synchronize, process, aggregate and distribute digital and
analog audio signals in the head-unit.
The Si47911/12 is the most integrated monolithic IC in the
industry with the smallest external bill of materials. Si47911/12
based systems can scale from low-cost single tuner AM/FM
radio to the highest performance systems with multiple tuners
and multiple antennas, enabling radio suppliers to reuse R&D
across multiple product lines, all with a common software API.
The Si47911/12 meets rigorous automotive quality standards.
AOUT5
Description
Audio
Input
Port 0
Audio
Input
Port 1
Audio
Input
Port 2
Audio
Input
Port 3
Audio
Input
Port 4
DIN4
DICLK4
DIFS4
Audio
Output
Port 0
DOUT0
DCLK0
DFS0
Audio
Output
Port 1
DOUT1
DCLK1
DFS1
LBO
B3I/WXI
Program
RAM
Data
RAM
B3O
FMI
Audio HUB +
Audio DSP
(Hi-Fi2 EP)
AGC
LNA
DEBUGP
DEBUGN
ADC
FMO
ISFSP
ISFSN
Radio DSP
IF AGC
ZIFIOUT
ZIFCLK
ZIFQOUT
ZIFFS
ADC
AMVAG
AGC
ADC
ADC
AIN5P
AIN5N
ADC
AIN4P
AIN4N
7:5 Mux
Copyright © 2015 by Silicon Laboratories
AIN6N
AIN6P
AIN3P
AIN3N
AIN2P
AIN2N
AIN1P
AIN1N
AIN0P
AIN0N
SPI/I2C
SSB/A1
SCLK/SCL
MOSI/SDA
MISO/A0
SMODE
INTB
RSTB
VD
VA
VIO1
VIO2
GP2
GP1
GP0
Si47911/12
Flash
Interface
NVSCLK
NVSSB
NVMOSI
NVMISO
Power
supplies
ADC
ARM
Cortex M3
AMO
ADC
AMI
LNA
3.12.2015
Si47911/12
High-Performance Automotive AM/FM Radio Receiver and
HD Radio™/DAB/DAB+/DMB/DRM Tuner with Audio System
Pin Assignments
Package Information
DICLK0
DIN0
GP0
GP2
GP1
DIN1
DICLK1
DIFS1
DIN2
DICLK2
DIFS2
NC
NC
NC
NC
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
82
DIFS0
83
81
AOUT0
84
ICP
AOUT1
ICN
AOUT2
AOUT3
1
63
NC
NC
2
62
NC
NC
3
61
DOUT0
CLKO
4
60
DCLK0
XTALO
5
59
DFS0
XTALI
6
58
DOUT1
f
DACREF
7
57
DCLK1
NC
8
56
DFS1
NC
f
9
55
DEBUGP
FMI
10
54
DEBUGN
NC
11
53
ISFSP
AMI
12
52
ISFSN
AMVAG
13
51
ZIFIOUT
FMO
14
50
ZIFCLK
NC
15
49
ZIFQOUT
NC
16
48
ZIFFS
ABYP
17
47
VIO2
VA
18
46
DBYP
AIN0P
19
45
VD
AIN0N
20
44
VIO1
AIN1P
21
43
SSB/A1
f
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
AIN1N
AIN2P
AIN2N
AIN3P
AIN3N
AIN4P
AIN4N
AIN5P
AIN5N
AIN6P
AIN6N
RSTB
SMODE
NVMISO
NVMOSI
NVSSB
NVSCLK
INTB
MISO/A0
MOSI/SDA
SCLK/SCL
Dimensions
Min
Nom
Max
A
0.80
0.85
0.90
A1
0.00
0.03
0.05
b
0.20
0.25
0.30
D
D2
12.00 BSC.
5.40
5.50
e
0.50 BSC.
E
12.00 BSC.
5.60
E2
5.40
5.50
5.60
L
0.35
0.40
0.45
aaa
—
—
0.10
bbb
—
—
0.10
ccc
—
—
0.08
ddd
—
—
0.10
Notes:
1. All dimensions shown are in millimeters (mm)
unless otherwise noted.
2. Dimensioning and Tolerancing per ANSI
Y14.5M-1994.
3. Recommended card reflow profile is per the
JEDEC/IPC J-STD-020 specification for Small
Body Components.
Si47911/12
Copyright © 2015 by Silicon Laboratories
3.12.2015
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