XE1203F データシートの表示（PDF） - Semtech Corporation
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XE1203F Datasheet PDF : 36 Pages
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XE1203F
The XE1203F is a single-chip UHF transceiver integrated circuit intended for use as a low cost FSK transceiver to
establish a frequency-agile, half-duplex, bi-directional RF link, with NRZ (non-return to zero) data coding. Barker
encoder/decoder hardware can be activated to modulate/demodulate the transmitted signal to reduce the effects of
fixed-frequency in-band interference. The device is available in a VQFN48 package and is designed to provide a
fully functional multi-channel FSK transceiver. It is intended for applications in the 868 MHz European band and the
North American 902-928 MHz ISM band. The single chip transceiver operates down to 2.4V and provides a low
power solution for battery-operated and power sensitive applications. The XE1203F is capable of operating data
rates up to 152.3 kbit/s, making it ideally suited for applications where high data rates are required.
1 FUNCTIONAL BLOCK DIAGRAM
QAMP
IAMP
MATCHING
NETWORK
RFA
LNA
RFB
FAMP
LPF
BBAMP
LIM
FAMP
LPF
BBAMP
LIM
LO_BUF
PHASE
SHIFTER
IREF
RSSI
FEI
CONTROL
DATA
SI
SO
SCK
EN
SWITCH
DEMOD
PATTERN
MATCHING
PATTERN
BITSYNC
11 Bits
BARKER
DECODER
DCLK
DATAIN
LOGIC
CONTROL DATA
MATCHING
NETWORK
RFOUT
PA
MMOD
DIVIDER
VCO
TKA TKB
DIVCTL
modulator
/n
Synthesizer
11 Bits
BARKER
ENCODER
CLKXTAL
CH PUMP
PFD
OSCILLATOR
XE1203 XE1203 TrueRF™
/n
CLOCK OUT
IREF
POR
LFB
XTA XTB CLKOUT
TSUPP TMOD(3:0)
POR
VCO
TANK
LOOP
FILTER
XTAL
Figure 1: XE1203F Block Diagram
© Semtech 2007
www.semtech.com
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