บทที่ 5 ข้อมูลจำเพาะระบบไฟฟ้า
ลักษณะทางไฟฟ้า
| Parameters | Conditions | Min | Typical | Max | Unit | |
|---|---|---|---|---|---|---|
| Storage Temperature Range | - | -40 | Normal | 125 | ℃ | |
| Maximum Soldering Temperature | IPC/JEDEC JSTD-020 | - | - | 260 | ℃ | |
| Working Voltage Value | - | 2.5 | 3.3 | 3.6 | V | |
| I/O | VIL/VIH | - | -0.3/0.75VIO | - | 0.25VIO/3.6 | V |
| VOL/VOH | - | N/0.8VIO | - | 0.1VIO/N | V | |
| IMAX | - | - | - | 12 | mA | |
| Electrostatic Discharge(HBM) | TAMB=25℃ | - | - | 2 | KV | |
| Electrostatic Discharge(CDM) | TAMB=25℃ | - | - | 0.5 | KV |
การใช้พลังงาน
| Parameters | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Tx802.11b, CCK 11Mbps, P OUT=+17dBm | - | 170 | - | mA |
| Tx 802.11g, OFDM 54Mbps, P OUT=+15dBm | - | 140 | - | mA |
| Tx 802.11n, MCS7, P OUT=+13dBm | - | 120 | - | mA |
| Rx 802.11b, 1024 bytes packet length ,-80dBm | - | 50 | - | mA |
| Rx 802.11g, 1024 bytes packet length,-70dBm | - | 56 | - | mA |
| Rx 802.11n, 1024 bytes packet length,-65dBm | - | 56 | - | mA |
| Modem-sleep | - | 15 | - | mA |
| Light-sleep | - | 0.9 | - | mA |
| Deep-sleep | - | 20 | - | μA |
| Power Off | - | 0.5 | - | μA |
ลักษณะการทำงานของ Wi-Fi Radio
ข้อมูลต่อไปนี้ได้จากการทดสอบที่อุณหภูมิห้องโดยใช้แหล่งจ่ายไฟ 3.3V และ 1.1V
| Parameters | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Input frequency | 2412 | - | 2484 | MHz |
| Output impedance | - | 39+j6 | - | Ω |
| Input reflection | - | - | -10 | dB |
| Output power of PA for 72.2 Mbps | 15.5 | 16.5 | 17.5 | dBm |
| Output power of PA for 11b mode | 19.5 | 20.5 | 21.5 | dBm |
| Sensitivity | Min | Typical | Max | Unit |
|---|---|---|---|---|
| DSSS, 1 Mbps | - | -98 | - | dBm |
| CCK, 11 Mbps | - | -91 | - | dBm |
| 6 Mbps(1/2 BPSK) | - | -93 | - | dBm |
| 54 Mbps(3/4 64-QAM) | - | -75 | - | dBm |
| HT20, MCS7(65 Mbps, 72.2 Mbps) | - | -72 | - | dBm |
| Adjacent Channel Rejection | Min | Typical | Max | Unit |
|---|---|---|---|---|
| OFDM, 6 Mbps | - | 37 | - | dB |
| OFDM, 54 Mbps | - | 21 | - | dB |
| HT20, MCS0 | - | 37 | - | dB |
| HT20, MCS7 | - | 20 | - | dB |