SX1235 datasheet(7/104 Pages) SEMTECH

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SX1235

WIRELESS & SENSING

DATASHEET

Rev 1 - December 2012

Figure 42. Manual Reset Timing Diagram ................................................................................................................... 86

Figure 43. Reference Design - Single RF Input/Output, High Efficiency PA ............................................................... 86

Figure 44. Reference Design - with Antenna Switch up to +20dBm ............................................................................ 87

Figure 45. Reference Design - with Antenna Switch and High Efficiency PA .............................................................. 87

Figure 46. Reference Design - Single RF Input/Output, High Stability PA .................................................................. 88

Figure 47. Listen Mode: Principle ................................................................................................................................ 89

Figure 48. Listen Mode with No Preamble Received ................................................................................................... 89

Figure 49. Listen Mode with Preamble Received ........................................................................................................ 90

Figure 50. Wake On PreambleDetect State Machine .................................................................................................. 90

Figure 51. Listen Mode with no SyncAddress Detected .............................................................................................. 91

Figure 52. Listen Mode with Preamble Received and no SyncAddress ...................................................................... 92

Figure 53. Listen Mode with Preamble Received & Valid SyncAddress ...................................................................... 92

Figure 54. Wake On SyncAddress State Machine ...................................................................................................... 93

Figure 55. Beacon Mode Timing Diagram ................................................................................................................... 94

Figure 56. Beacon Mode State Machine ..................................................................................................................... 94

Figure 57. Example CRC Code ................................................................................................................................... 96

Figure 58. Example Temperature Reading .................................................................................................................. 97

Figure 59. SX1235 Optimised Phase Noise at 12.5 kHz and 25 kHz .......................................................................... 98

Figure 60. SX1235 Filter Definitions and Conventions ................................................................................................ 99

Figure 61. SX1235 Spurious Image Response Frequency ....................................................................................... 100

Figure 62. Package Outline Drawing ......................................................................................................................... 101

Figure 63. Recommended Land Pattern ................................................................................................................... 101

Figure 64. Tape & Reel Specification ........................................................................................................................ 102

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