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Xemics

XE1202 Datasheet Preview

XE1202 Datasheet

integrated UHF transceiver

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Data Sheet
XE1202
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RFA
RFB
RFOUT
IAmp
QAmp
LNA
LO
Buff.
PA
I AMP
BPF
Q AMP
BPF
AMP
Limiter
AMP
Limiter
FSK
Demod.
Bit
Sync.
Phase
Shifter
Prog.
divider
VCO
PFD
RSSI
FEI
modulator
/n Synthesizer
Oscillator
/n
Clock Out
Pattern
Recognition
Control
Logic
POR
I Ref
SCAN
DCLK
DATAOUT
PATTERN
MODE 0
MODE 1
MODE 2
SI
SO
SCK
EN
DATAIN
XE1202
433MHz / 868MHz / 915MHz
Low-power, integrated UHF transceiver
GENERAL DESCRIPTION
The XE1202 is a single chip transceiver operating in
the 433, 868 and 915MHz license free ISM (Industry
Scientific and Medical) frequency bands. Its highly
integrated architecture allows for minimum external
components while maintaining design flexibility. All
major RF communication parameters are
programmable and most of them can be dynamically
set. The XE1202 offers the unique advantage of
narrow-band and wide-band communication, this
without the need to modify the number or parameters
of the external components. The XE1202 is optimized
for low power consumption while offering high RF
output power and channelized operation suited for both
the European (ETSI-300-220) and the North American
(FCC part 15) regulatory standards
APPLICATIONS
Narrow-band and wide-band security systems
Voice and data over an RF link
Process and building control
Access control
Home automation
Home appliances interconnection
KEY PRODUCT FEATURES
Programmable RF output power: up to +15dBm
High reception sensitivity: down to –113dBm
Low power consumption: RX=14mA; TX = 48mA
@15 dBm output power
Supply voltage down to 2.7V
Wide band operation: 400kHz channels for data
rates of up to 76.8kbps, NRZ coding
Narrow band operation: down to 25kHz channels
for data rates of 4.8kbps, NRZ coding
On-chip frequency synthesizer with steps of 500Hz
Continuous phase 2-level FSK modulation
Incoming data pattern recognition
Built-in Bit-Synchronizer for incoming data and
clock synchronization and recovery
RSSI (Received Signal Strength Indicator) and FEI
(Frequency Error Indicator)
ORDERING INFORMATION
Part number Temperature range
XE1202I027
-40°C to +85°
Package
LQFP44
Cool Solutions for Wireless Connectivity
XEMICS SA e-mail: info@xemics.com web: www.xemics.com




Xemics

XE1202 Datasheet Preview

XE1202 Datasheet

integrated UHF transceiver

No Preview Available !

Data Sheet
XE1202
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General Description.................................................................................................................................................. 1
Applications .............................................................................................................................................................. 1
Key product features ................................................................................................................................................ 1
Ordering information................................................................................................................................................. 1
1 Functional Block Diagram .............................................................................................................................. 3
2 Pin description ................................................................................................................................................ 4
3 Electrical Characteristics ............................................................................................................................... 5
3.1 Absolute Maximum Operating Ranges.......................................................................................................... 5
3.2 Specifications................................................................................................................................................. 5
3.2.1 Operating Range .......................................................................................................................................... 5
3.2.2 Electrical Specifications ................................................................................................................................ 5
4 Description....................................................................................................................................................... 7
4.1 Detailed description ....................................................................................................................................... 8
4.1.1 Receiver........................................................................................................................................................ 8
4.1.2 High sensitivity vs. high linearity: A-mode, B-mode...................................................................................... 8
4.1.3 RSSI.............................................................................................................................................................. 8
4.1.4 Frequency Error Indicator - FEI .................................................................................................................... 9
4.1.5 Transmitter.................................................................................................................................................. 11
4.1.6 Pattern recognition...................................................................................................................................... 12
4.1.7 Clock Output for external processor ........................................................................................................... 12
5 Interface definition, Principles of operation ............................................................................................... 13
5.1 Serial Control Interface ................................................................................................................................ 13
5.2 Configuration and Status registers .............................................................................................................. 14
5.2.1 RTParam configuration register.................................................................................................................. 14
5.2.2 FSParam configuration register .................................................................................................................. 15
5.2.3 DataOut register ......................................................................................................................................... 16
5.2.4 ADParam configuration register ................................................................................................................. 17
5.2.5 Pattern register ........................................................................................................................................... 18
5.3 Operating Modes ......................................................................................................................................... 19
5.3.1 Standard power up sequence for the receiver and transmitter .................................................................. 19
5.3.2 Single step sequence for the receiver ........................................................................................................ 21
5.4 Transmitted Data Interface .......................................................................................................................... 21
5.5 Received Data Interface .............................................................................................................................. 21
5.6 Pattern Recognition Interface ...................................................................................................................... 21
5.7 Clock Output Interface ................................................................................................................................. 22
5.8 Default settings at power-up........................................................................................................................ 22
6 Application Information ................................................................................................................................ 23
6.1 Matching network of the receiver................................................................................................................. 23
6.2 Matching network of the transmitter ............................................................................................................ 23
6.3 VCO tank ..................................................................................................................................................... 24
6.4 Loop filter of the frequency synthesizer....................................................................................................... 24
6.5 Reference crystal for the frequency synthesizer ......................................................................................... 25
6.6 Decoupling capacitances............................................................................................................................. 25
7 Packaging information.................................................................................................................................. 26
2 D0211-105


Part Number XE1202
Description integrated UHF transceiver
Maker Xemics
Total Page 26 Pages
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