XE1205SKC868XE1 Semtech, XE1205SKC868XE1 Datasheet - Page 3

• Manufacturer Part Number: XE1205SKC868XE1
• Description: KIT STARTER FOR XE1205 868MHZ
• Manufacturer: Semtech
• Series: TrueRF™r
• Type: Transceiver, ISMr

Specifications of XE1205SKC868XE1

• Frequency: 868MHz
• For Use With/related Products: XE1205 (868MHz)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

The XE1205 single-chip solution is an integrated circuit intended for use as a low cost FSK transceiver to establish a
frequency-agile, half-duplex, bi-directional RF link, with non-return to zero data coding. The device is available in a VQFN
48 package and is designed to provide a fully functional multi-channel FSK transceiver. It is intended for applications in the
433 MHz and 868 MHz European bands and the North American 915 MHz ISM band. The single chip transceiver operates
down to 2.4V. Its ability to operate with 25 kHz channel spacing makes it compliant with requirements of ETSI EN300 220-
1 and makes the XE1205 ideal for automatic meter reading and alarms.
1
Please note early version lot codes whose date-codes start with N3K, N4K and N5K (except N5K3760, N5K3760A,
N5K3760B and N5K6993) exhibit a non-conformance to specification. The non-conformance affects the FIFO buffer
described in section 5.2.5. Please use the FIFO in this product only in conjunction with the Technical Note TN1205.01
(available www.semtech.com). All other date-codes are in conformance with the specification.
2
© Semtech 2008
NON-CONFORMANCE
FUNCTIONAL BLOCK DIAGRAM
MATCHING
NETWORK
MATCHING
NETWORK
RFOUT
RFA
RFB
PA
LNA
LO_BUF
TKA
TANK
VCO
VCO
SHIFTER
PHASE
DIVIDER
MMOD
TKB
FAMP
FAMP
Figure 1: XE1205 block diagram.
FILTER
LOOP
LFB
IREF
CH PUMP
LPF
LPF
PFD
DIVCTL
CLKXTAL
BBAMP
BBAMP
3
RSSI
OSCILLATOR
/n Synthesizer
IAMP
XTA
XTAL
modulator
XTB
LIM
LIM
IAMP
Data shaping
CLOCK OUT
DEMOD
filter
/n
CLKOUT TSUPP TMOD(3:0)
MATCHING
PATTERN
BITSYNC
XE1205
FIFO
FEI
INTERFACE
XE1205
CHIP
www.semtech.com
NSS_CONFIG
IREF
POR
NSS_DATA
POR
IRQ_0
IRQ_1
SW(0)
SW(1)
DATA
MOSI
MISO
SCK