MT7668AUN_MT7668AEN_MT7668ASN_Datasheet资源-CSDN文库

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MT7668AUN, MT7668AEN, 和 MT7668ASN 是MediaTek公司推出的一系列高性能Wi-Fi与蓝牙融合芯片，主要用于实现2x2 MIMO (Multiple-Input Multiple-Output) 技术的802.11a/b/g/n/ac无线网络连接以及蓝牙v5.0技术。这些芯片的设计目标是为移动设备、智能家居、物联网(IoT)产品等提供高效、稳定且低功耗的无线通信解决方案。 MT7668A系列芯片的主要特点包括： 1. **802.11a/b/g/n/ac支持**: 这些芯片支持最新的Wi-Fi标准，能够提供高速的数据传输速率，尤其是在5GHz频段，满足了高清视频流、在线游戏和其他高带宽应用的需求。 2. **2T2R (Two Transmit, Two Receive)**: 采用2T2R技术，可以同时发送和接收两个数据流，显著提升无线连接的吞吐量和信号稳定性。 3. **蓝牙v5.0**: 支持蓝牙最新版本，提供更远的传输距离、更快的速度以及更低的功耗，适用于蓝牙音频设备、健康监测器和其他蓝牙IoT设备。 4. **Wi-Fi Offload**: 芯片内置Wi-Fi offload功能，旨在减轻主处理器的负担，提高设备的整体性能和电池寿命。 5. **Host Interface Subsystem**: 提供灵活的主机接口，如SPI, I2C, UART等，便于与各种系统-on-chip(SoC)集成。 6. **Chip Architecture**: 设计紧凑，集成度高，减少了外部组件需求，降低物料成本，同时优化了空间利用。 7. **Radio Characteristics**: 优化的射频特性确保了在复杂电磁环境下的良好性能，如自动增益控制(AGC)、功率控制和信道选择性。 8. **Package Specification**: 提供详细封装规格，包括尺寸、引脚定义等，方便制造商进行硬件设计和生产。 9. **Block Diagram**: 显示了芯片内部各个模块的结构，帮助开发者理解其工作原理和功能分配。 10. **Document Revision History**: 提供了文档的修订历史，显示了芯片设计的演进过程和改进点。 MT7668AUN, MT7668AEN, MT7668ASN是专为现代无线设备设计的高度集成芯片，它们结合了高速Wi-Fi和先进的蓝牙技术，提供了高效、可靠的无线连接能力，适用于各种应用场景，如平板电脑、智能电视、路由器、智能家居设备等。由于其出色的技术特性和不断更新的规格，这些芯片在物联网和消费电子市场具有广泛的应用前景。

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loginid=molbasic01@ginreen.com,time=2018-02-06 15:51:44,ip=113.116.49.14,doctitle=MT7668AUN_MT7668AEN_MT7668ASN_Datasheet.pdf,company=Ginreen-Tablet

This document contains information that is proprietary to MediaTek Inc.

Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited.

Version: 1.0

Release date: 2017-03-30

Specifications are subject to change without notice.

MT7668AUN, MT7668AEN,

MT7668ASN Datasheet

802.11a/b/g/n/ac Wi-Fi 2T2R + Bluetooth v5.0 Combo Chip

loginid=molbasic01@ginreen.com,time=2018-02-06 15:51:44,ip=113.116.49.14,doctitle=MT7668AUN_MT7668AEN_MT7668ASN_Datasheet.pdf,company=Ginreen-Tablet

MT7668AUN, MT7668AEN, MT7668ASN Datasheet

MediaTek Confidential

Page 3 of 40

This document contains information that is proprietary to MediaTek Inc.

Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited.

Table of Contents

Document Revision History ................................................................................................................. 2

Table of Contents .................................................................................................................................. 3

1 System overview ......................................................................................................................... 6

1.1 General Description ............................................................................................................. 6

1.2 Features ............................................................................................................................... 6

1.2.1 Technology and package .................................................................................... 6

1.2.2 Power management and clock source ................................................................ 6

1.2.3 Platform ............................................................................................................... 6

1.2.4 WLAN .................................................................................................................. 6

1.2.5 Bluetooth ............................................................................................................. 7

1.2.6 Miscellaneous ...................................................................................................... 7

1.3 Block Diagram ..................................................................................................................... 7

2 Functional Description ............................................................................................................... 9

2.1 Overview .............................................................................................................................. 9

2.2 Chip architecture ................................................................................................................. 9

2.2.1 Chip power plan .................................................................................................. 9

2.2.2 Chip power on sequence .................................................................................. 12

2.2.3 Digital power domain ......................................................................................... 13

2.2.4 Clock.................................................................................................................. 13

2.2.5 Reset ................................................................................................................. 13

2.3 32-bit RISC MCU subsystem ............................................................................................. 14

2.4 CR4 subsystem ................................................................................................................. 14

2.5 Host interface subsystem .................................................................................................. 14

2.5.1 USB Interface .................................................................................................... 14

2.5.2 SDIO interface ................................................................................................... 14

2.5.3 PCIe interface .................................................................................................... 15

2.6 Wi-Fi subsystem ................................................................................................................ 15

2.6.1 Wi-Fi MAC ......................................................................................................... 15

2.6.2 WLAN Baseband ............................................................................................... 16

2.6.3 WLAN RF .......................................................................................................... 16

2.7 Bluetooth subsystem ......................................................................................................... 17

2.7.1 Feature set ........................................................................................................ 17

3 Radio Characteristics ............................................................................................................... 18

3.1 Wi-Fi Radio Characteristics ............................................................................................... 18

3.1.1 Wi-Fi RF Block Diagram .................................................................................... 18

3.1.2 Wi-Fi 2.4GHz band RF receiver specifications ................................................. 19

3.1.3 Wi-Fi 2.4GHz band RF transmitter specifications ............................................. 20

3.1.4 Wi-Fi 5GHz band RF receiver specifications .................................................... 20

3.1.5 Wi-Fi 5GHz band RF transmitter specifications ................................................ 21

3.2 Bluetooth Radio Characteristics ........................................................................................ 22

3.2.1 Bluetooth RF Block Diagram ............................................................................. 22

loginid=molbasic01@ginreen.com,time=2018-02-06 15:51:44,ip=113.116.49.14,doctitle=MT7668AUN_MT7668AEN_MT7668ASN_Datasheet.pdf,company=Ginreen-Tablet

MT7668AUN, MT7668AEN, MT7668ASN Datasheet

MediaTek Confidential

Page 4 of 40

This document contains information that is proprietary to MediaTek Inc.

Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited.

3.2.2 Basic rate receiver specifications ...................................................................... 22

3.2.3 Basic rate transmitter specifications .................................................................. 23

3.2.4 Enhanced data rate receiver specifications ...................................................... 23

3.2.5 Enhanced data rate transmitter specifications .................................................. 24

3.2.6 Bluetooth LE receiver specifications ................................................................. 25

3.2.7 Bluetooth LE transmitter specifications ............................................................. 25

3.3 Current Consumption ........................................................................................................ 26

3.3.1 WLAN Current Consumption ............................................................................. 26

3.3.2 Bluetooth Current Consumption ........................................................................ 26

4 Electrical Characteristics ......................................................................................................... 27

4.1 Absolute maximum rating .................................................................................................. 27

4.2 Recommended operating range ........................................................................................ 27

4.3 DC characteristics ............................................................................................................. 27

4.4 XTAL oscillator................................................................................................................... 28

4.5 PMU Characteristics .......................................................................................................... 28

4.6 Thermal characteristics ..................................................................................................... 29

5 Package specification ............................................................................................................... 30

5.1 Pin Layout .......................................................................................................................... 30

5.2 Pin Description................................................................................................................... 32

5.3 Pin multiplexing ................................................................................................................. 36

5.4 Bootstrap ........................................................................................................................... 37

5.5 Package information .......................................................................................................... 38

5.6 Ordering Information .......................................................................................................... 39

5.7 Top marking ....................................................................................................................... 39

Lists of Tables and Figures

Table 1 2.4GHz RF receiver specification ............................................................................................. 20

Table 2 2.4GHz RF transmitter specifications ....................................................................................... 20

Table 3 5GHz RF receiver specifications .............................................................................................. 21

Table 4 5GHz RF transmitter specifications .......................................................................................... 22

Table 5 Basic rate receiver specifications ............................................................................................. 23

Table 6 Basic rate transmitter specifications ......................................................................................... 23

Table 7 Enhanced data rate receiver specifications ............................................................................. 24

Table 8 Enhanced data rate transmitter specifications ......................................................................... 24

Table 9 Bluetooth LE receiver specifications ....................................................................................... 25

Table 10 Bluetooth LE transmitter specifications .................................................................................. 25

Table 11 WLAN 2.4/5GHz Current Consumption .................................................................................. 26

Table 12 Bluetooth 2.4GHz Current Consumption ................................................................................ 26

Table 13 Absolute maximum rating .................................................................................................. 27

Table 14 Recommended operating range ........................................................................................ 27

Table 15 DC characteristics of 3.3V application ............................................................................. 27

Table 16 XTAL oscillator requirement .............................................................................................. 28

Table 17 PMU electrical characteristic ............................................................................................. 28

Table 18 Thermal characteristics .......................................................................................................... 29

Table 19 MT7668A common pin descriptions ................................................................................. 34

Table 20 MT7668AUN pin descriptions ............................................................................................ 35

Table 21 MT7668AEN pin descriptions ............................................................................................ 35

loginid=molbasic01@ginreen.com,time=2018-02-06 15:51:44,ip=113.116.49.14,doctitle=MT7668AUN_MT7668AEN_MT7668ASN_Datasheet.pdf,company=Ginreen-Tablet

MT7668AUN, MT7668AEN, MT7668ASN Datasheet

MediaTek Confidential

Page 5 of 40

This document contains information that is proprietary to MediaTek Inc.

Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited.

Table 22 MT7668ASN pin descriptions ............................................................................................ 36

Table 23 Pin multiplexing .................................................................................................................. 37

Table 24 Bootstrap option – XTAL clock mode ............................................................................... 37

Table 25 Bootstrap option – BT host mode ..................................................................................... 37

Table 26 Bootstrap option – USB3 mode......................................................................................... 38

Table 27 Bootstrap option – Chip mode .......................................................................................... 38

Table 28 Ordering information .......................................................................................................... 39

Figure 1 MT7668AUN system-on-chip block diagram ............................................................................ 7

Figure 2 MT7668AEN system-on-chip block diagram ............................................................................ 8

Figure 3 MT7668ASN system-on-chip block diagram ............................................................................ 8

Figure 4 MT7668AUN chip power plan ................................................................................................. 10

Figure 5 MT7668AEN chip power plan .............................................................................................. 11

Figure 6 MT7668ASN chip power plan ................................................................................................. 12

Figure 7 Chip power on sequence ........................................................................................................ 13

Figure 8 Cold reset sequence ............................................................................................................... 13

Figure 9 2.4/5GHz RF block diagram ................................................................................................... 18

Figure 10 Wi-Fi/Bluetooth RF block diagram ........................................................................................ 22

Figure 11 MT7668AUN Pin Layout ....................................................................................................... 30

Figure 12 MT7668AEN Pin Layout ....................................................................................................... 31

Figure 13 MT7668ASN Pin Layout ....................................................................................................... 32

Figure 14 Package outline drawing ....................................................................................................... 39

Figure 15 MT7668AUN Top Marking .................................................................................................... 39

Figure 16 MT7668AEN Top Marking ..................................................................................................... 40

Figure 17 MT7668ASN Top Marking ..................................................................................................... 40

MediaTek Confidential A

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