广 州 视 琨 电 子 科 技 有 限 公 司 Guangzhou Shikun Electronic Technology Company Limited SPECIFICATION 产品规格书 SKI.WB921A.5 IEEE 802.11b/g/n/a/ac/ax 2T2R USB WiFi Module Integrated BT 2.1+EDR/4.2/5.2 Approved by Shikun Checked by 审核 Rechecked by 复审 Approved by 批准 Please send the original back to us after you have approved and signed.
REVISION HISTORY. VERSION DATE BOARD ID PAGE DESCRIPTION AUTHOR V1.0 2021.8.18 SKI.WB921A.5 All First Issued Zhou V1.1 2021.8.23 SKI.WB921A.
Content 1. Introduction(简介)............................................................................................................1 2. Features(特性)................................................................................................................... 1 3. Block Diagram(结构框图)............................................................................................... 2 4. Package Outline and Mounting(外形及安装尺寸)................................................... 3 5.
SKI.WB921A.5 1. Introduction(简介) SKI.WB921A.5 module is based on MediaTek MT7921AU solution. MT7921AU is a highly integrated single chip which features a low power 2x2 11a/b/g/n/ac/ax dual-band Wi-Fi subsystem and a Bluetooth v5.2 subsystem, offering feature-rich wireless connectivity at high standards,and delivering reliable,cost-effective throughput from an extended distance. MT7921AU data rate up to 800Mbps with USB3.0.
SKI.WB921A.5 Chip Solution 芯片方案 MT7921AU Band 波段 2.4~2.5GHz & 5.15~5.825GHz & 5.926~7.125GHz Dimensions 25.6mm×23mm×2.4mm 尺寸 Installatio Model Protocol l Frequency Antenna Remark 支持标准 频段 天线 备注 IEEE 802.11a/b/g/n/ac/ax 2.4GHz/5GHz WiFi&BT : 25.6mm× BT 2.1+EDR/4.2/5.2 /6GHz 一代 Ipex 23mm×2.4mm n Mode 型号 安装方式 SKI.WB921A.5 SMD 3.
SKI.WB921A.5 4. Package Outline and Mounting(外形及安装尺寸) CONT1: RF_BT0; CONT2: RF0; CONT3: RF1;CONT4: RF_BT1 Pin Definition(引脚定义) PIN SYMBOL DESCRIPTION 1 U3-TXN USB3.0 TXN,连接主平台 RXN 2 U3-TXP USB3.0 TXP,连接主平台 RXP 3 GND Ground 4 U3-RXN USB3.0 RXN,连接主平台 TXN 5 U3-RXP USB3.0 RXP,连接主平台 TXP 6 GND Ground 7 U2-DP USB2.0 DP,连接主平台 DP 8 U2-DM USB2.
SKI.WB921A.5 23 NC Not connect 24 NC Not connect 25 NC Not connect 26 RESET PMU RESET,内部 10K 上拉,低电平有效 27 3.3V 3.3V (DCDC 单独供电,预留 2A,纹波小于 120mV) 28 3.3V 3.3V (DCDC 单独供电,预留 2A,纹波小于 120mV) 29 GND Ground 30 NC Not connect 31 GPIO1I 32 GND 选择 USB3.0 的比特率(2.5GHz or 5GHz),上拉为正常高速模式(5GHz bit rate),内部默认上拉 GND 5. Product Pictures(实物图片) 暂无 正视图(top view) 暂无 背视图(bottom view) 暂无 标签信息(information view) 6. Key Materials(关键物料) 序号 关键件名称 型号 规格/材料 1 集成电路 MT7921AU 109-DRQFN 2 PCB SKI.
SKI.WB921A.5 7. General Requirements(一般要求) No. Feature Description 7-1 Operation Voltage 工作电压范围 3.3V+/-0.3 7-2 Current Consumption 最大电流 900mA(预留 2A) 7-3 Ripple 纹波 ≤120mV 7-4 Operation Temperature 工作温度范围 0°C to +40°C 7-5 Antenna Type 天线类型 External antenna 7-6 USB 7-7 Storage Temperature 存储温度 High Speed USB 3.0 Interface (兼容 High Speed USB 2.0 Interface) -40°C to +125°C 8. Electrical Characteristics(电气特性) 除非另有说明,电气规范试验都在下列条件下进行: 环境条件温度:25℃±5℃; 电源电压:模块输上入电压 3.3V+/-0.
SKI.WB921A.5 RX Characteristics Min. Typ. Max. Unit 1) 1Mbps (FER ≦8%) - - -83 dBm 2) 2Mbps (FER ≦8%) - - -80 dBm 3) 5.5Mbps (FER ≦8%) - - -79 dBm 4) 11Mbps (FER ≦8%) - - -76 dBm -10 - - dBm 5 Minimum Input Level Sensitivity (each chain) 6 Maximum Input Level (FER ≦8%) 8.2 IEEE 802.11g Section(2.4GHz) Items Contents Specification IEEE802.11g Mode OFDM Channel CH1 to CH13 Data rate 6, 9, 12, 18, 24, 36, 48, 54Mbps TX Characteristics Min. Typ. Max.
SKI.WB921A.5 7) 48Mbps (PER ≦10%) - - -69 dBm 8) 54Mbps (PER ≦10%) - - -65 dBm -20 - - dBm 6 Maximum Input Level (PER ≦10%) 8.3 IEEE 802.11n HT20 Section(2.4GHz) Items Contents Specification IEEE802.11n HT20 @ 2.4GHz Mode OFDM Channel CH1 to CH13 Data rate (MCS index) TX Characteristics MCS0/1/2/3/4/5/6/7 Min. Typ. Max.
SKI.WB921A.5 8.4 IEEE 802.11n HT40 Section(2.4GHZ) Items Contents Specification IEEE802.11n HT40 @ 2.4GHz Mode OFDM Channel CH3 to CH11 Data rate (MCS index) TX Characteristics MCS0/1/2/3/4/5/6/7 Min. Typ. Max.
SKI.WB921A.5 8.5 IEEE 802.11ax Section(2.4GHz) Items Contents Specification IEEE802.11ax BPSK, QPSK, 16QAM, 64QAM,256QAM, Mode 1024QAM and OFDMA HE20:CH1 to CH13 Channel HE40:CH3 to CH11 Data rate (MCS index) TX Characteristics MCS0/1/2/3/4/5/6/7/8/9/10/11 Min. Typ. Max.
SKI.WB921A.5 8) MCS7 (PER ≦10%) - - -64 -61 dBm 9) MCS8(PER ≦10%) - - -59 -56 dBm 10) MCS9(PER ≦10%) - - -57 -54 dBm 11) MCS10(PER ≦10%) - - -54 -51 dBm 12) MCS11(PER ≦10%) - - -52 -49 dBm -30 - - dBm 6. Maximum Input Level (PER ≦10%) 8.6 IEEE 802.11a Section(5GHz) Items Contents Specification IEEE802.11a Mode OFDM Channel CH36 to CH165 Data rate (MCS index) TX Characteristics 6, 9, 12, 18, 24, 36, 48, 54Mbps Min. Typ. Max.
SKI.WB921A.5 6. Maximum Input Level (PER ≦10%) -30 - - dBm 8.7 IEEE 802.11n HT20 Section(5GHz) Items Contents Specification IEEE802.11n HT20 @ 5GHz Mode BPSK, QPSK, 16QAM, 64QAM and OFDM Channel CH36 to CH165 Data rate (MCS index) TX Characteristics MCS0/1/2/3/4/5/6/7 Min. Typ. Max.
SKI.WB921A.5 8.8 IEEE 802.11n HT40 Section(5GHz) Items Contents Specification IEEE802.11n HT40 @ 5GHz Mode BPSK, QPSK, 16QAM, 64QAM and OFDM Channel CH38 to CH163 Data rate (MCS index) TX Characteristics MCS0/1/2/3/4/5/6/7 Min. Typ. Max.
SKI.WB921A.5 8.9 IEEE 802.11ac Section(5GHz) Items Contents Specification IEEE802.11ac Mode BPSK, QPSK, 16QAM, 64QAM ,256QAM and OFDM CH36 to CH165 VHT20 Channel CH38 to CH163 VHT40 CH42 to CH157 VHT80 Data rate (MCS index) TX Characteristics MCS0/1/2/3/4/5/6/7/8/9 Min. Typ. Max.
SKI.WB921A.5 10) MCS9(PER ≦10%) 6. Maximum Input Level (PER ≦10%) - - -30 - -57 -54 -51 - dBm dBm 8.10 IEEE 802.11ax Section(5GHz) Items Contents Specification IEEE802.11ax BPSK, QPSK, 16QAM, 64QAM,256QAM, Mode 1024QAM and OFDMA CH36 to CH165 HE20 Channel CH38 to CH163 HE40 CH42 to CH157 HE80 Data rate (MCS index) TX Characteristics MCS0/1/2/3/4/5/6/7/8/9/10/11 Min. Typ. Max.
SKI.WB921A.5 5) MCS4 (PER ≦10%) - - -70 -67 -64 dBm 6) MCS5 (PER ≦10%) - - -66 -63 -60 dBm 7) MCS6 (PER ≦10%) - - -65 -62 -59 dBm 8) MCS7 (PER ≦10%) - - -64 -61 -58 dBm 9) MCS8(PER ≦10%) - - -59 -56 -53 dBm 10) MCS9(PER ≦10%) - - -57 -54 -51 dBm 11) MCS10(PER ≦10%) - - -54 -51 -48 dBm 12) MCS11(PER ≦10%) - - -52 -49 -46 dBm -30 - 6. Maximum Input Level (PER ≦10%) - dBm 8.11 IEEE 802.11 Section(6GHz) Items Contents Specification IEEE802.
SKI.WB921A.
SKI.WB921A.5 3). Δf1avg /Δf2avg 0.8 0.98 - KHz 14. ICFT -75 ±20 +75 KHz 1). One slot packet (DH1) -25 ±15 +25 KHz 2). Two slot packet (DH3) -40 ±15 +40 KHz 3). Five slot packet (DH5) -40 ±15 +40 KHz 4). Max drift rate - 6 20 KHz/50us 16. TX output spectrum(20dB bandwidth) - 922 1000 KHz 1). ±2MHz offset - -45 -20 dBm 2). ±3MHz offset - -48 -40 dBm 3). >±3MHz offset - -48 -40 dBm 15. Carrier frequency drift 17. In-Band spurious emission 9.
SKI.WB921A.5 and functional parameter shall be satisfied Humidity with the test specification.
SKI.WB921A.5 10.