SI4702-C19-GMR [SILICON]
Audio Tuner, 2-Band, 3 X 3 MM, ROHS COMPLIANT, QFN-20;
| 型号： | SI4702-C19-GMR |
| 厂家： | 
SILICON |
| 描述： | Audio Tuner, 2-Band, 3 X 3 MM, ROHS COMPLIANT, QFN-20 便携式 |
| 文件： | 总2页 (文件大小：203K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Si4702/03-C19
Broadcast FM Radio Tuner for Portable Applications
Description
Features
The Si4702/03-C19 extends Silicon Laboratories Si4700/
01 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. The Si4702/03 leverage Silicon
Laboratories' highly successful and patented Si4700/01 FM
tuner, and are pin and software compatible to existing
Si4700/01 FM tuner designs. The Si4702/03 benefits from
proven digital integration and 100% CMOS process
technology, resulting in a completely integrated solution.
The Si4702/03 proven and highly flexible functionality
caters to the subjective nature of audio preferences and
variable FM broadcast environments worldwide.
- Worldwide FM band support (76–108 MHz)
- 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
- 2-wire and 3-wire control interface
- 2.7 to 5.5 V supply voltage
- Integrated LDO regulator allows direct connection
to battery
- 3 x 3 mm 20-pin QFN package
- Pb-free/RoHS compliant
- RDS/RBDS Processor (Si4703)
- Integrated crystal oscillator
The Si4703-C19 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, PND, and MP3
manufacturers worldwide.
Applications
- Cellular handsets
- MP3 players
- Portable radios
- USB FM radio
- PDAs
The Si4702/03 device’s high level of integration and
complete FM system increases quality to manufacturers,
improves
device
yields,
and
simplifies
device
manufacturing and final testing.
- Notebook PCs
- Portable navigation
- Consumer electronics
Headphone
Cable
Si4702/03
DSP
I
LOUT
DAC
DAC
GPIO
ADC
FMIP
FILTER
DEMOD
MPX
LNA
PGA
RFGND
Q
ADC
ROUT
GPIO
AUDIO
AGC
0 / 90
LOW-IF
32.768 kHz
RCLK
VIO
RST
RDS
(Si4703)
AFC
TUNE
REG
SDIO
SCLK
SEN
2.7–5.5 V
VA
VD
XTAL
OSC
RSSI
FM Tuner
Copyright © 2008 by Silicon Laboratories
4.3.08
Si4702/03-C19
Broadcast FM Radio Tuner for Portable Applications
Selected Electrical Specifications
Parameter
Input Frequency
Symbol
Test Condition
Min
76
—
Typ
—
Max
108
—
Unit
MHz
fRF
Sensitivity
Input IP3
(S+N)/N = 26 dB
1.1
106
µV EMF
dBµV EMF
|f2 – f1| > 1 MHz; f0 = 2 x f1 – f2
AGC disabled
—
—
Adjacent Channel Selectivity
Alternate Channel Selectivity
RCLK Frequency
±200 kHz
±400 kHz
—
—
50
70
—
—
dB
dB
—
32.768
—
—
kHz
ppm
mVrms
Hz
RCLK Frequency Tolerance
Audio Output Voltage
Audio Band Limits
Audio S/N
–200
72
30
—
200
90
80
±1.5 dB
—
15k
—
59
dB
Audio THD
—
0.1
—
0.5
5.5
3.6
85
%
Supply Voltage
VD, VA
VIO
TA
2.7
1.5
–20
—
V
Interface Supply Voltage
Ambient Temperature
Supply Current
—
V
25
°C
IAD
14.4
8.5
—
—
mA
Powerdown Current
Seek/Tune Time
IPD
—
12
µA
—
60
ms/channel
MHz
kHz
ms
SCLK Frequency
fCLK
fSCL
3-wire operation
2-wire operation
From powerdown
—
—
2.5
400
110
—
—
Powerup Time
—
—
Package Information
Pin Assignments
1
2
20
19
18
17 16
15 GND
NC
FMIP
RFGND
GND
3
4
14
13
LOUT
ROUT
GND
PAD
RST
5
6
12 GND
11 VD
7
8
9
10
Table 1. Package Dimensions
Symbol
Millimeters
Symbol
Millimeters
Min
0.50
0.00
0.18
0.27
Nom
0.55
0.02
0.25
0.32
3.00 BSC
1.70
0.50 BSC
3.00 BSC
1.70
Max
0.60
0.05
0.30
0.37
Min
Nom
2.53 BSC
0.40
—
—
Max
A
A1
b
c
D
D2
e
E
f
L
L1
aaa
bbb
ccc
ddd
eee
0.35
0.00
—
—
—
0.45
0.10
0.10
0.10
0.08
0.10
0.10
—
—
—
—
1.65
1.65
1.75
1.75
—
—
E2
FM Tuner
Copyright © 2008 by Silicon Laboratories
4.3.08
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
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