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SI4710 Datasheet Preview

SI4710 Datasheet

(SI4710 / SI4711) FM Radio Transmitter

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SI4710 pdf
Si4710/11
FM Radio Transmitter for Portable Applications
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The Si4710/11 is the industry's first 100% CMOS FM
transmitter single chip IC. The device leverages
Silicon Labs’ highly successful and proven Si4700/01
FM receiver, and offers unmatched integration and
performance allowing FM transmit to be added to any
portable device by using a single chip. As with the
Si4700/01, the Si4710/11 offers industry leading size,
performance, low power consumption, and ease of
use.
The Si4710/11’s digital integration reduces the
required external components of traditional offerings,
resulting in a solution requiring only an external
inductor and bypass capacitor, and PCB space of
approximately 15 mm2. High reliability in device
manufacturing, improved quality, easy design-in, and
software programmability are key advantages of the
Si4710/11.
The Si4711 supports the European Radio Data
System (RDS) and the US Radio Broadcast Data
System (RBDS) including all the symbol encoding,
block synchronization, and error correction functions.
Using this feature, the Si4711 enables data such as
artist name and song title to be transmitted to an
RDS/RBDS receiver.
Users are responsible to adjust their system’s
radiated power levels to comply with local regulations
on RF transmission (FCC, ETSI, ARIB, etc.).
Features
- Worldwide FM band support
(76–108 MHz) for transmit
- Requires only two external components
- Frequency synthesizer with integrated VCO
- Digital stereo modulator
- Programmable pre-emphasis
(50/75 µs)
- Analog/digital audio interface
- Programmable reference clock
- RDS/RBDS transmit encoder (Si4711 only)
- PCB loop antenna support with self calibrated
capacitor tuning
- Programmable transmit level
- Programmable modulation
- 2.7 to 5.5 V supply voltage
- Digital gain compression
- Integrated LDO regulator
- 3 x 3 x 0.55 mm 20-pin QFN
- Pb-free and RoHS Compliant
Applications
- Cellular handsets/hands-free
- MP3 players
- Portable audio/video players
- Wireless speakers/microphone
- Satellite digital audio radios
- Personal computers/notebooks
DFS DIGITAL
DIN AUDIO
LIN ADC
DAC
DSP
RIN ADC
DAC
2. 7– 5.5 V VDD
C1 GND
22 nF
LDO
GPO
RDS (Si4711)
CONTROL
INTERFACE
Si471x
Tx
TXO Ant
L1
RFGND 120nH
AFC
FM Tuner
Copyright © 2007 by Silicon Laboratories
1.8.07



Silicon Laboratories
Silicon Laboratories

SI4710 Datasheet Preview

SI4710 Datasheet

(SI4710 / SI4711) FM Radio Transmitter

No Preview Available !

SI4710 pdf
Si4710/11
FM Radio Transmitter for Portable Applications
wwSwe.lDeactatSehdeeEt4lUe.ccotmrical Specifications
Parameter
Transmit Frequency Range
Programmable Transmit Output Voltage,
TXO (Maximum Voltage)
Programmable Transmit Output Voltage,
TXO (Minimum Voltage)
Transmit Voltage Stability
Transmit Voltage Step
Transmit Channel Edge Power
Transmit Adjacent Channel Power
Pre-emphasis Time Constant
Audio SNR
Audio THD
Audio Stereo Separation
Sub Carrier Rejection Ratio
Input Signal Level (0 dB)
Audio Bandwidth (3 dB)
Audio Imbalance
Powerup Settling Time
Symbol
fRF
Test Condition
FMPE[1:0] = 00
FMPE[1:0] = 01
SCR
VAI
0.6 VRMS input,
VIO = 1.8 V
From powerdown
Min
76
–1
70
45
30
20
–1
Typ Max
— 108
115 —
83 —
—1
12
— –20
–30 –26
75 80
50 54
63 —
0.1 0.5
35 —
–50 –40
— 0.636
— 15 K
—1
110 —
Pin Assignments
Package Information
Unit
MHz
dBµV
dBµV
dB
dB
dBC
dBC
us
us
dB
%
dB
dB
Vpk
Hz
dB
ms
NC 1
NC 2
RFGND 3
TXO 4
RST 5
6
20 19 18 17 16
15 RIN
GND
PAD
14 DFS
13 DIN
12 GND
7 8 9 10 11 VDD
Symbol
Millimeters
Min Nom Max
A 0.50 0.55 0.60
A1 0.00
0.02
0.05
b 0.20 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 1.65
1.70
1.75
Symbol
f
L
L1
aaa
bbb
ccc
ddd
eee
Min
0.35
0.00
Millimeters
Nom
2.53 BSC
0.40
Max
0.45
0.10
0.05
0.05
0.08
0.10
0.10
FM Tuner
Copyright © 2007 by Silicon Laboratories
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
1.8.07


Part Number SI4710
Description (SI4710 / SI4711) FM Radio Transmitter
Maker Silicon Laboratories
Total Page 2 Pages
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