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Semtech Corporation

SX1210 Datasheet Preview

SX1210 Datasheet

Ultra-Low Power Integrated UHF Receiver

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ADVANCED COMMUNICATIONS & SENSING
General Description
The SX1210 is a low cost single-chip receiver
operating in the frequency ranges from 863-870, 902-
928 MHz and 950-960 MHz. The SX1210 is optimized
for very low power consumption (3mA). It incorporates
a baseband demodulator with data rates up to 200
kb/s. Data handling features include a sixty-four byte
FIFO, packet handling, CRC and data whitening
processing. Its highly integrated architecture allows for
minimum external component count whilst maintaining
design flexibility. All major RF communication
parameters are programmable and most of them may
be dynamically set. It complies with European (ETSI
EN 300-220 V2.1.1) and North American (FCC part
15.247 and 15.249) regulatory standards.
Ordering Information
Table 1: Ordering Information
Part number
Delivery
Minimum Order
Quantity / Multiple
SX1210I084TRT Tape & Reel
3000 pieces
ƒ
ƒ TQFN-32 package – Operating range [-40;+85°C]
ƒ T refers to Lead Free packaging
ƒ This device is WEEE and RoHS compliant
Application Circuit Schematic
SX1210 Receiver
Ultra-Low Power Integrated UHF Receiver
Features
ƒ Low Rx power consumption: 3mA
ƒ Good reception sensitivity: down to -107 dBm at
25 kb/s in FSK, -113 dBm at 2kb/s in OOK
ƒ Packet handling feature with data whitening and
CRC processing
ƒ RSSI (Received Signal Strength Indicator) range
from Rx noise floor to 0 dBm
ƒ Bit rates up to 200 kb/s, NRZ coding
ƒ On-chip frequency synthesizer
ƒ FSK and OOK modulation
ƒ Incoming sync word recognition
ƒ Built-in Bit-Synchronizer for incoming data and
clock synchronization and recovery
ƒ 5 x 5 mm TQFN package
ƒ Optimized Circuit Configuration for Low-cost
applications
ƒ Pin to pin compatible with SX1211 Transceiver
Applications
ƒ Wireless alarm and security systems
ƒ Wireless sensor networks
ƒ Automated Meter Reading
ƒ Home and building automation
ƒ Industrial monitoring and control
ƒ Remote Wireless Control
Rev 2– Sept 8th, 2008
Page 1 of 73
www.semtech.com




Semtech Corporation

SX1210 Datasheet Preview

SX1210 Datasheet

Ultra-Low Power Integrated UHF Receiver

No Preview Available !

www.DataSheet4U.com
ADVANCED COMMUNICATIONS & SENSING
Table of Contents
1. General Description ................................................................... 5
1.1. Simplified Block Diagram ........................................................ 5
1.2. Pin Diagram ............................................................................ 6
1.3. Pin Description ........................................................................ 7
2. Electrical Characteristics............................................................ 8
2.1. ESD Notice.............................................................................. 8
2.2. Absolute Maximum Ratings .................................................... 8
2.3. Operating Range..................................................................... 8
2.4. Chip Specification ................................................................... 8
2.4.1. Power Consumption............................................................. 8
2.4.2. Frequency Synthesis ........................................................... 9
2.4.3. Receiver ............................................................................. 10
2.4.4. Digital Specification............................................................ 11
3. Architecture Description ........................................................... 12
3.1. Power Supply Strategy.......................................................... 12
3.2. Frequency Synthesis Description ......................................... 13
3.2.1. Reference Oscillator .......................................................... 13
3.2.2. CLKOUT Output................................................................. 13
3.2.3. PLL Architecture ................................................................ 14
3.2.4. PLL Tradeoffs..................................................................... 14
3.2.5. Voltage Controlled Oscillator ............................................. 15
3.2.6. PLL Loop Filter................................................................... 15
3.2.7. PLL Lock Detection Indicator ............................................. 16
3.2.8. Frequency Calculation ....................................................... 16
3.3. Receiver Description ............................................................. 17
3.3.1. Architecture ........................................................................ 17
3.3.2. LNA and First Mixer ........................................................... 18
3.3.3. IF Gain and Second I/Q Mixer ........................................... 18
3.3.4. Channel Filters ................................................................... 18
3.3.5. Channel Filters Setting in FSK Mode ................................. 19
3.3.6. Channel Filters Setting in OOK Mode ................................ 20
3.3.7. RSSI................................................................................... 20
3.3.8. Fdev Setting in Receive Mode ........................................... 22
3.3.9. FSK Demodulator .............................................................. 22
3.3.10. OOK Demodulator ........................................................... 22
3.3.11. Bit Synchronizer ............................................................... 25
3.3.12. Alternative Settings .......................................................... 26
3.3.13. Data Output...................................................................... 26
4. Operating Modes...................................................................... 27
4.1. Modes of Operation .............................................................. 27
4.2. Digital Pin Configuration vs. Chip Mode ............................... 27
5. Data Processing....................................................................... 28
5.1. Overview ............................................................................... 28
5.1.1. Block Diagram.................................................................... 28
5.1.2. Data Operation Modes ....................................................... 28
5.2. Control Block Description...................................................... 29
5.2.1. SPI Interface ...................................................................... 29
5.2.2. FIFO ................................................................................... 31
5.2.3. Sync Word Recognition ..................................................... 33
5.2.4. Packet Handler................................................................... 34
5.2.5. Control................................................................................ 34
5.3. Continuous Mode .................................................................. 35
5.3.1. General Description ........................................................... 35
5.3.2. Rx Processing .................................................................... 36
5.3.3. Interrupt Signals Mapping .................................................. 36
SX1210
5.3.4. uC Connections ..................................................................37
5.3.5. Continuous Mode Example.................................................37
5.4. Buffered Mode .......................................................................38
5.4.1. General Description ............................................................38
5.4.2. Rx Processing.....................................................................38
5.4.3. Interrupt Signals Mapping ...................................................39
5.4.4. uC Connections ..................................................................40
5.4.5. Buffered Mode Example .....................................................40
5.5. Packet Mode ..........................................................................41
5.5.1. General Description ............................................................41
5.5.2. Packet Format.....................................................................41
5.5.3. Rx Processing.....................................................................43
5.5.4. Packet Filtering ...................................................................43
5.5.5. DC-Free Data Mechanisms ................................................45
5.5.6. Interrupt Signal Mapping.....................................................46
5.5.7. uC Connections ..................................................................46
5.5.8. Packet Mode Example ........................................................48
5.5.9. Additional Information .........................................................48
6. Configuration and Status Registers ..........................................49
6.1. General Description ...............................................................49
6.2. Main Configuration Register - MCParam ...............................49
6.3. Interrupt Configuration Parameters - IRQParam ...................51
6.4. Receiver Configuration parameters - RXParam ....................53
6.5. Sync Word Parameters - SYNCParam ..................................54
6.6. Oscillator Parameters - OSCParam.......................................55
6.7. Packet Handling Parameters – PKTParam............................56
7. Application Information .............................................................57
7.1. Crystal Resonator Specification.............................................57
7.2. Software for Frequency Calculation.......................................57
7.2.1. GUI......................................................................................57
7.2.2. .dll for Automatic Production Bench....................................57
7.3. Switching Times and Procedures ..........................................57
7.3.1. Optimized Receive Cycle....................................................58
7.3.2. Receiver Frequency Hop Optimized Cycle .........................59
7.4. Reset of the Chip ...................................................................60
7.4.1. POR ....................................................................................60
7.4.2. Manual Reset......................................................................60
7.5. Reference Design ..................................................................61
7.5.1. Application Schematic.........................................................61
7.5.2. PCB Layout.........................................................................61
7.5.3. Bill Of Material.....................................................................62
7.5.4. Ordering Information for Tools ............................................63
7.6. Reference Design Performance.............................................63
7.6.1. Sensitivity Flatness .............................................................65
7.6.2. Sensitivity vs. LO Drift.........................................................66
7.6.3. Sensitivity vs. Receiver BW ................................................67
7.6.4. Sensitivity Stability over Temperature and Voltage ............68
7.6.5. Sensitivity vs. Bit Rate ........................................................68
7.6.6. Adjacent Channel Rejection................................................69
8. Packaging Information ..............................................................71
8.1. Package Outline Drawing ......................................................71
8.2. PCB Land Pattern ..................................................................71
8.3. Tape & Reel Specification......................................................72
9. Revision History ........................................................................73
10. Contact Information.................................................................73
Rev 2– Sept 8th, 2008
Page 2 of 73
www.semtech.com


Part Number SX1210
Description Ultra-Low Power Integrated UHF Receiver
Maker Semtech Corporation
Total Page 30 Pages
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