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无线通信方式调研表
厂商
通信方式
频段
芯片型号
最大发射功率（dBm）
RAM(KB)
FLASH(KB)
supply voltage min(V)
supply voltage max(V)
Nordic
BLE
2.4G
nRF52840
8
256
1024
1.7
5.5
Nordic
BLE
2.4G
nRF52833
8
128
512
1.7
5.5
Nordic
BLE
2.4G
nRF52811
4
24
192
1.7
3.6
Silicon Labs
BLE
2.4G
EFR32MG24
19.5
256
Silicon Labs
BLE
2.4G
EFR32BG22
6
32
泰凌
BLE
2.4G
TLSR8251
10
32
汇顶科技
BLE
2.4G
GR551x
7
256(128)
1024(512)
1.7
3.8
Atmosic
BLE
2.4G
ATM2202
4
128
EM Microelectronic
BLE
2.4G
EM9305
10
64
Semtech
LoRa
2.4G
SX1280
12.5
0
Semtech
LoRa
Sub-GHz
SX1268
22(10)
0
纵行科技
ZETA
Sub-GHz
ZTG1323B
20(13)
0
华普微
FSK
Sub-GHz
CMT2310A
20(13)
0
百瑞互联
BLE
2.4G
BR1002
7
64
512
1.8
3.6
安信可
TurMass
Sub-GHz
TKM-101
17
No results from filter
关注参数SNR
仅Sub-GHz LoRa有负信噪比接收解析数据的参数
Range of Spreading Factors (SF)
Spreading Factor (SF)
5
6
7
8
9
10
11
12
2^SF (Chips / Symbol)
32
64
128
256
512
1024
2048
4096
Typical LoRa® Demodulator SNR [dB]
-2.5
-5
-7.5
-10
-12.5
-15
-17.5
-20
There are no rows in this table
实际环境中常有环境噪声，比如用nRF52840 Dongle抓取的RSSI，深色为实时RSSI，浅色为周期内最大RSSI。环境噪声基本在-100dBm以上
BLE距离测试结果
GFSK SNR数据：
Bluetooth RF Layer Performance Evaluation.pdf
165.5 kB
IET Communications - 2018 - Aldana‐Lopez - Digital linear GFSK demodulator for IoT devices.pdf
1.4 MB
缺点总结：
1. BLE, 2.4G LoRa, 距离近。
由弗里斯传输方程可知，不考虑天线增益，理论链路空中损耗L(dB)=-32.44-20 lg(d_Km )-20lg(f_MHz)
d为距离，单位千米。f为载波频率，单位MHz，载波频率越高，无线传输损耗越大。
2. Sub-GHz LoRa速率上限低
3. FSK功耗较高
数据筛选：芯片型号: 频段: 通信方式:
All
All
All
一. 发射功耗图
一. 发射功耗表
二. 接收功耗图
二. 接收功耗表
三. 休眠功耗图
三. 休眠功耗表
四. 接收灵敏度图
四. 接收灵敏度表
五. 运行功耗图
五. 运行功耗表
六. 价格图
六. 价格表
射频前端
厂商
芯片型号
价格
饱和输出功率(dBm)
发射小信号增益(dB)
发射输入回损(dB)
发射输出回损(dB)
接收增益(dB)
接收输入回损(dB)
接收输出回损(dB)
杭州中科微电子
AT2401C
1.4
22
25
-10
-6
12
-10
-12
There are no rows in this table
基本参数表
厂商
芯片型号
通信方式
频段
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