LPWA Chip
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LPWA Chip

双向/实时LPWA RF/Digital SoC

  • 262MHz/917MHz [支持实时IoT]
  • 内网[构建方便]
  • 高速IoT通信量 : 支持抄表/智能城市/智能农场

产品特点

  • LPWA Modem
  • 161 dB maximum link budget
  • +23 dBm - 200 mW constant RF output vs. V supply
  • Bullet-proof front end: IIP3 = -18 dBm
  • Fully integrated synthesizer with a resolution of 5 Hz
  • BPSK and QPSK modulation
  • Preamble detection
  • 128 AES Encryption
  • Automatic RF Sense and CAD with ultra-fast AFC
  • Built-in temperature sensor and low battery indicator
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产品式样

I. LPWA PHY Transmission specification

ITEM, Transmission specification
ITEMTransmission specification
Multi Mode PHY Support  Narrow Band (NB) Mode
Spread Spectrum (SS)
Channel Bandwidth NB (Mandatory): 6.25, 12.5, 25, 50kHz
SS (Mandatory): 100, 200, 400, 800kHz,1600KHz
Date Rate NB: 0.1-50kbps (50kHz 基准)
SS: 0.1-50kbps (200kHz 基准)
Frame Mode Beacon, UL/DL frame
Max PHY Payload Size  MAC packet: 4~400 Byte
Channel Coding & Modulation [PHY Header]  Reed-Muller Code, R=1/3
DSSS-BPSK
Channel Coding & Modulation [PHY Payload]  Convolutional Code
DSSS-BPSK/QPSK
MCS  MCS0-MCS7 (S.E.=0.5~1.67)
Spreading Factor of SS Mode  1~4096 (Direct Spreading x Repetition)
Max DSSS SF = 64
 Max Repetition = 64
Operation Mode 支持Non-beacon/Beacon模式
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II. RF Specification

Parameters, Symbol, Test Conditions, MIN, TYP, MAX, Unit, Note
ParametersSymbolTest ConditionsMINTYPMAXUnitNote
Operation Temperature TEMP   -40 27 85 °C  
Operation Frequency LBFreq 262 264 MHz
  HBFreq   917   923.5 MHz  
Signal Bandwidth BW 6.25 1600 KHz 6.25/12.5/25/50/100/200/400/800/1600
PLL Lock time TLOCK     100   us  
Phase Noise PN In-band -90 dBc/Hz
Frequency Step FSTEP     5   Hz  
TX Max Power TPMAX 23/23 dBm LB/HB
TX Dynamic Range TXDR     20/20   dB LB/HB
TX Gain Control Step 1/1 dB LB/HB
RX AGC Dynamic Range       150/150   dB LB/HB
RX AGC Min Step 1/1 dB LB/HB
RX IIP3       -19   dBm LB/HB
RX Max Input Power 0/0 dBm LB/HB
RX NF       5/3   dB LB/HB
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