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SI4702 Datasheet Preview

SI4702 Datasheet

(SI4702 / SI4703) Broadcast FM Radio Tuner

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SI4702 pdf
Si4702/03
Broadcast FM Radio Tuner for Portable Applications
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The Si4702/03 extends Silicon Laboratories Si4700 FM tuner
family, and further increases the ease and attractiveness of
adding FM radio reception to mobile devices through small size
and board area, minimum component count, flexible
programmability, and superior, proven performance. Si4702/03
software is backwards compatible to existing Si4700/01 FM tuner
designs and leverages Silicon Laboratories' highly successful
and patented Si4700/01 FM tuner. The Si4702/03 benefits from
proven digital integration and 100% CMOS process technology,
resulting in a completely integrated solution. It is the industry's
smallest footprint FM tuner IC requiring only 10 mm2 board
space and one external bypass capacitor.
The device offers significant programmability. It can be adapted
to subjective listening requirements, and it allows adjustability in
important parameters such as seek/tune, allowing the Si4702/03
to outperform other solutions by finding more valid stations and
not stopping on frequencies that do not have a radio station.
The Si4703 incorporates a digital processor for the European
Radio Data System (RDS) and the US Radio Broadcast Data
System (RBDS) including all required symbol decoding, block
synchronization, error detection, and error correction functions.
RDS enables data such as station identification and song name
to be displayed to the user. The Si4703 offers a detailed RDS
view and a standard view, allowing adopters to selectively
choose granularity of RDS status, data, and block errors. Si4703
software is backwards compatible to the proven Si4701, adopted
by leading cell-phone and MP3 manufacturers world-wide.
The Si4702/03 is based on the superior, proven performance of
Silicon Laboratories' Aero architecture offering unmatched
interference rejection and leading sensitivity. The device uses
the same programming interface as the Si4700/01 and supports
multiple bus-modes. Power management is also simplified with
an integrated regulator allowing direct connection to a 2.7 to
5.5 V battery.
The Si4702/03 device’s high level of integration and complete
FM system production testing increases quality to
manufacturers, improves device yields, and simplifies device
manufacturing and final testing.
Features
- Worldwide FM band support (76–108 MHz)
- 3x3 mm 20-pin QFN package
- Pb-free/RoHS compliant
- Digital low-IF receiver
- Frequency synthesizer with integrated VCO
- Seek tuning
- Automatic frequency control (AFC)
- Automatic gain control (AGC)
- Excellent overload immunity
- Signal strength measurement
- Programmable de-emphasis (50/75 µs)
- Adaptive noise suppression
- Volume control
- Line-level analog output
- 32.768 kHz reference clock
- RDS/RBDS processor (Si4703 only)
- 2-wire and 3-wire control interface
- 2.7 to 5.5 V supply voltage
- Integrated LDO regulator allows direct connection
to battery
Applications
- Cellular handsets
- MP3 players
- PDAs, Notebook PCs
- Portable radios
- Portable navigation
- Automobile applications
- Consumer electronics
- USB FM radios
Headphone
Cable
FMIP
RFGND
LNA
Si4702/03
I
ADC
DSP
DAC LOUT
PGA
FILTER
DEMOD
Q
ADC
MPX
AUDIO
DAC
ROUT
32.768 kHz
RCLK
2.7–5.5 V
VA
VD
AGC
TUNE
REG
0 / 90
XTAL
OSC
AFC
LOW-IF GPIO
RDS
(Si4703)
RSSI
GPIO
VIO
RST
SDIO
SCLK
SEN
FM Tuner
Copyright © 2006 by Silicon Laboratories
8.10.06



Silicon Laboratories
Silicon Laboratories

SI4702 Datasheet Preview

SI4702 Datasheet

(SI4702 / SI4703) Broadcast FM Radio Tuner

No Preview Available !

SI4702 pdf
Si4702/03
Broadcast FM Radio Tuner for Portable Applications
wwSwe.DleactatSehdeeEt4lUe.ccotmrical Specifications
Parameter
Input Frequency
Sensitivity
Input IP3
Adjacent Channel Selectivity
Alternate Channel Selectivity
RCLK Frequency
RCLK Frequency Tolerance
Audio Output Voltage
Audio Band Limits
Audio S/N
Audio THD
Supply Voltage
Interface Supply Voltage
Ambient Temperature
Supply Current
Powerdown Current
Seek/Tune Time
SCLK Frequency
Powerup Time
Symbol
fRF
VD, VA
VIO
TA
IAD
IPD
fCLK
fSCL
Test Condition
(S+N)/N = 26 dB
|f2 – f1| > 1 MHz; f0 = 2 x f1 – f2
AGC disabled
±200 kHz
±400 kHz
±1.5 dB
3-wire operation
2-wire operation
From powerdown
Min
76
–200
72
30
2.7
1.5
–20
Typ
2.5
108
50
70
32.768
80
63
0.1
25
18
5
Max
108
200
90
15k
0.5
5.5
3.6
85
15
60
2.5
400
110
Unit
MHz
µV EMF
dBµV EMF
dB
dB
kHz
ppm
mVrms
Hz
dB
%
V
V
°C
mA
µA
ms/channel
MHz
kHz
ms
Pin Assignments
Package Information
NC 1 20 19 18 17 16
FMIP 2
15 GND
RFGND 3
GND 4
GND
PAD
14 LOUT
13 ROUT
RST 5
12 GND
6 7 8 9 10 11 VD
Symbol
Millimeters
Min Nom Max
A 0.50 0.55 0.60
A1 0.00 0.02 0.05
b 0.18 0.25 0.30
c 0.27 0.32 0.37
D 3.00 BSC
D2 1.65 1.70 1.75
e 0.50 BSC
E 3.00 BSC
E2 1.60 1.70 1.80
Symbol
f
L
L1
aaa
bbb
ccc
ddd
eee
Millimeters
Min Nom Max
2.53 BSC
0.35 0.40 0.45
0.00 — 0.10
— — 0.10
— — 0.10
— — 0.08
— — 0.10
— — 0.10
FM Tuner
Copyright © 2006 by Silicon Laboratories
8.10.06
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


Part Number SI4702
Description (SI4702 / SI4703) Broadcast FM Radio Tuner
Maker Silicon Laboratories
Total Page 2 Pages
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