3181A-S SPEC
3181A-S SPEC Content 1. General Description ...................................................................................................................................3 2. Product Model Information ....................................................................................................................3 3. WIFI Specification .......................................................................................................................................3 3.1 WIFI features ..........
181A-S SPEC 1. General Description 3181A-S is a highly integrated 2.4 GHz Wi-Fi module that support the IEEE 802.11b/g/n baseband and RF circuit. It supports 20 MHz standard bandwidth and 5 MHz/10 MHz narrow bandwidth, and provides a physical layer rate up to 72.2 Mbit/s.
3181A-S SPEC CH1: 2412MHz, CH2: 2417MHz, CH3: 2422MHz, CH4: 2427MHz, CH5: 2432MHz, CH6: 2437MHz, CH7: 2442MHz, CH8: 2447MHz, CH9: 2452MHz, CH10: 2457MHz, CH11:2462MHz respectively. 3.2 WIFI RF Performance Feature Description Standard IEEE 802.11 b/g/n 802.11 b: 11, 5.5, 2, 1 Mbps Data Rate 802.11 /g: 54, 48, 36, 24, 18, 12, 9, 6 Mbps 802.11 n: MCS 0 to 7 for HT20MHz：65 Mbps IEEE 802.11b mode: CCK, DQPSK, DBPSK Modulation mode IEEE 802.11g mode: 64QAM, 16QAM, QPSK, BPSK IEEE 802.
3181A-S SPEC 3.3 Block Diagram 3.
3181A-S SPEC 3.5 PIN Assignment Pin # Name Type Description 1 GND / Ground connections 2 WL_ANT I/O RF I/O port 3 GND / Ground connections 4~5 NC / Floating (Don’t connected to ground) 6 Host wake device I Host Wake up Wi-Fi, GPIO06 7 GPIO8 8 NC / Floating (Don’t connected to ground) 9 VCC P Main power voltage source input 2.3V-3.
3181A-S SPEC I/O 13 SDIO data interrupt.
3181A-S SPEC 3.
3181A-S SPEC 石头世纪科技有限公司 内部文档 9
3181A-S SPEC 4. Antenna Specification 4.1 Antenna lists Max No. Type Band(s) 1 PCB antenna 2.4GHz - 2.5GHz 3.7 2 PCB antenna 2.4GHz - 2.5GHz 3.3 roborock S6 3 PCB antenna 2.4GHz - 2.5GHz 4.
3181A-S SPEC 4 PCB antenna 2.4GHz - 2.5GHz 3.7 roborock S5 Max 5 PCB antenna 2.4GHz - 2.5GHz 3.7 S5 Max 4.2 Wireless LAN antenna matching circuit 4.3 Antenna design requirements a) RF-line need 50Ω single line impedance； b) Antenna is 2.
3181A-S SPEC d) PCB thickness is 1.5mm，Copper-Layer 6，Antenna is Layer1； e) Antenna put on the edge of the pcb，Clearance around and below； 5. FCC and IC Warning This device complies with Part 15 of the FCC Rules / Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
3181A-S SPEC Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.
3181A-S SPEC antenne. La FCC des éltats-unis stipule que cet appareil doit être en tout temps éloigné d’au moins 20 cm des personnes pendant son functionnement. Limited by local law regulations, version for North America does not have region selection option. This device is intended for OEM integrators only. Please see the full grant of equipment document for restrictions.
