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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
© 2017 MediaTek Inc.
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.
M
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
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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
MT7668AUN, MT7668AEN, MT7668ASN Datasheet
MediaTek Confidential
© 2017 MediaTek Inc.
Page 2 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.
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Document Revision History
Revision
Date
Author
Description
0.01
2016-07-05
Jamie Huang
Initial revision
0.02
2016-08-25
Jamie Huang
1. Update Wi-Fi offload description.
2. Update chapter 5.3 bootstrap pins.
1.0
2017-03-30
Jamie Huang
1. Update chapter 1.2 features.
2. Update chapter 1.3 block diagram.
3. Update chapter 2.2 chip architecture.
4. Update chapter 2.5 host interface subsystem.
5. Update chapter 2.7 Bluetooth subsystem.
6. Update chapter 3 radio characteristics.
7. Update chapter 5 package specification.
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
© 2017 MediaTek Inc.
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.
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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
© 2017 MediaTek Inc.
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.
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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
© 2017 MediaTek Inc.
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.
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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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