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Future
Communications
Integrated circuit Inc.
FC3810
5.8GHz-band ASK Transceiver
for ETC applications
D
ESCRIPTION
FC3810 is a complete RF to baseband ASK
(amplitude shift keying) transceiver IC of FCI’s netRF™
family for worldwide ETCS (electronic toll collection
system) applications. FC3810 is a true single chip for
5.8GHz band ETC application since it integrates all the
required receiver, transmitter, VCO, and PLL enabling
tiny low power ETC RF solution.
The receiver part receives 5.8GHz band ASK
modulated RF signal from the antenna and gives
demodulated baseband ASK DATA to the ASK modem
chip. The receiver part is comprised of LNA, downconverter, channel select filter, and ASK demodulator.
The transmitter part receives digital data from the ASK
modem chip and transmit 5.8GHz band ASK modulated
RF signal to the antenna. The transmit part contains
data up-converter and drive amplifier. FC3810
integrates the entire required PLL block such as VCO,
fractional-N synthesizer, crystal oscillator for LO signal
generation for receiving and transmitting. Two wired
serial programmable interface protocol enables
FC3810 to operate in various modes.
For ASK 5.8GHz band ETC system, external
components such as IF SAW filter, and IF ASK
demodulator are no longer required because of
FC3810 fully integrated ASK transceiver IC. FC3810 is
available in a 6mm x 6mm 40-pin MLF package.
A
PPLICATIONS
-
Korea ETC applications
R
EVISION HISTORY
F
EATURES
Complete RF transceiver for 5.8GHz band ETC
z
applications using ASK modulation
5.8GHz fully Integrated LNA and mixer with low
z
noise figure and high linearity.
Channel selection filter with self calibration and
z
automatic DC-offset calibration
Fully Integrated ASK demodulator
z
Fully integrated low-noise LC VCO
z
Fast locking (<20us) fractional-N frequency
z
synthesizer
Support 2-wired serial programming protocol
z
6mm x 6mm, 40pin, small leadless package
z
P
IN CONFIGURATION
GND
GND
RX_ IN
RBIAS1
383940 37 36 35 34 33 32 31
VDDA1
TX_ON
I2C_DT
I2C_CK
VDDD1
RXS/W
TXS/W
TX_DATA
VDDD2
VDDA12
1
2
3
4
5
6
7
8
9
10
MixerLNA
I2C
Tx UP
Conveter
DA
11 12 13 14 15 16 17
VDDA11
VDDA10
RBIAS2
DA_OUT
Distribution
VDDA2
Baseband
Filter
LO
GND
VDDA3
VDDA9
VDDA4
Demodulator
Fractional-N
18
VDDA8
RX_BYP4
ASK
VCO
PLL
XTAL
OSC
OSCP
RX_BYP3
19 20
OSCM
RX_BYP2
30
29
28
27
26
25
24
23
22
21
VDDA7
RX_BYP1
RX_DATA
NC
NC
VDDA5
VDDA6
FTUNE
CPOUT
NC
GND
-
Tentative
-
Preliminary
APR, 2008
version release: Feb, 2007.
version datasheet release:
For latest specifications, technical questions and additional product information, visit website or e-mail
FCI Inc.
th
Floor, Kins Tower, 25-1 Website: http://www.fci.co.kr
11
Jeongja-Dong, Bundang-Gu, E-mail: [email protected]
Sungnam City, Gyunggi-do, Phone: 82-31-711-6444
463-811, KOREA Fax: 82-31-714-6576
FCI Confidential Document 1 / 8 Last Update 04/21/2008
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