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SKI.WB638BU.2_668BU

IEEE 802.11b/g/n/a/ac 2T2R USB WiFi Module

Integrated BT 2.1/3.0/4.2

Approved by Shikun

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Please send the original back to us after you have approved and signed.

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广州视琨电子科技有限公司

Guangzhou Shikun Electronic Technology Company Limited

Summary of content (19 pages)

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广州视琨电子科技有限公司 Guangzhou Shikun Electronic Technology Company Limited SKI.WB638BU.2_668BU IEEE 802.11b/g/n/a/ac 2T2R USB WiFi Module Integrated BT 2.1/3.0/4.2 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.
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REVISION HISTORY VERSION DATE V0 2020.01.06 BOARD ID SKO.WB638U.
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SKI.WB638BU.2_668BU Content 1. Introduction（简介）............................................................................................................ 2 2. Features（特性） ................................................................................................................... 2 3. Block Diagram（结构框图） ............................................................................................... 3 4. Package Outline and Mounting（外形及安装尺寸） .................................................... 3 5.
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SKI.WB638BU.2_668BU 1. Introduction（简介） SKI.WB638BU.2_668BU module is based on MediaTek MT7668BUN solution. MT7668BUN is a highly integrated single chip which features a low power 2x2 802.11b/g/n Wi-Fi subsystem and a Bluetooth subsystem. The Wi-Fi subsystem contains the 802.11 a/b/g/n/ac radio, baseband, and MAC that are designed to meet both the low power and high throughput application. The Bluetooth subsystem contains the Bluetooth radio which complies with Bluetooth v2.1+EDR, v4.2, and v5.
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SKI.WB638BU.2_668BU 4.
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SKI.WB638BU.2_668BU Pin Definition（引脚定义） TOP VIEW PIN SYMBOL DESCRIPTION 1 3.3V 3.3V 供电 2 3.3V 3.3V 供电 3 DM USB_DM 4 DP USB_DP 6 RESET 内部有 10K 上拉电阻，低电平有效 7 WL_HOST_WAKE 内部有 10K 上拉电阻，低电平有效 9 BT_HOSTWAKE 内部有 10K 上拉电阻，低电平有效 5,8,10,11,12,13,14 GND GND 5.
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SKI.WB638BU.2_668BU 背视图（bottom view）标签信息（information view） 6. Key Materials（关键物料） No. Name Model Specification 序号关键件名称型号规格/材料 1 集成电路 MT7668BUN 76-QFN 2 PCB SKI.WB638BU.
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SKI.WB638BU.2_668BU 7. General Requirements（一般要求） No. Feature Description 8-1 Operation Voltage 工作电压范围 3.3V+/-0.3 8-2 Current Consumption 最大电流 700mA 8-3 Ripple 纹波 ≤100mV 8-4 Operation Temperature 工作温度范围 0°C to +40°C 8-5 Antenna Type 天线类型 External antenna 8-6 USB High Speed USB 2.0 Interface 8-7 Storage Temperature 存储温度 -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.
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SKI.WB638BU.2_668BU 5 Minimum Input Level Sensitivity (each chain) 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 6 Maximum Input Level (FER ≦ 8%) 8.2 IEEE 802.11g Section 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.
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SKI.WB638BU.2_668BU 8) 54Mbps (PER ≦ 10%) 6 Maximum Input Level (PER ≦ 10%) - - -65 dBm -20 - - dBm 9.3 IEEE 802.11n HT20 Section 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.
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SKI.WB638BU.2_668BU 9.4 IEEE 802.11n HT40 Section 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.
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SKI.WB638BU.2_668BU 9.5 IEEE 802.11a Section 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.
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SKI.WB638BU.2_668BU 9.6 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.
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SKI.WB638BU.2_668BU 9.7 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.
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SKI.WB638BU.2_668BU 9.8 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) MCS0/1/2/3/4/5/6/7/8/9 Min. Typ. Max. Unit Min. Typ. Max.
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SKI.WB638BU.2_668BU 8) MCS7 (PER ≦ 10%) - - -64 -61 -58 dBm 9) MCS8(PER ≦ 10%) - - -59 -56 -53 dBm 10) MCS9(PER ≦ 10%) - - -57 -54 -51 dBm -30 - 6. Maximum Input Level (PER ≦ 10%) - dBm 9.9 Bluetooth Section Items Contents Specification BT2.1+EDR/4.2/5.0 Mode FHSS,GFSK,DPSK,DQPSK Number of Channel 79 Channels Frequency Band 2.402 GHz ~2.480GHz Min. 1. Output Power Typ. Max. Unit 4 - dBm 2. Gain step 2 4 8 dB 3. Receiver sensitivity (BER ≦0.1%) - -93.
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SKI.WB638BU.2_668BU 2). ±3MHz offset - -48 -40 dBm 3). >±3MHz offset - -48 -40 dBm 9. Mechanical,Environmental and Reliability Tests （机械、环境和可靠性测试） Test Items Test Conditions Qty Criteria Condition The packed samples was tested at below condition: After test, the outer box and inner box Drop height: 10-1 Drop test 760mm(0.5~9.5kg） 1xBox 610mm(9.5~18.5kg) will not been broken by appearance visual inspection, and the products should be ok. Drop time: 1x corner, 3x edge and 6x face.
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SKI.WB638BU.
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SKI.WB638BU.2_668BU 10. Package（包装） 11. Software Requirements（软件要求） The driver supports the following operating systems: Microsoft Windows XP, Vista and Win7.