2
DS90UB949-Q1
ZHCSD34B –NOVEMBER 2014–REVISED AUGUST 2019
www.ti.com.cn
Copyright © 2014–2019, Texas Instruments Incorporated
目目录录
1 特特性性.......................................................................... 1
2 应应用用.......................................................................... 1
3 说说明明.......................................................................... 1
4 修修订订历历史史记记录录 ........................................................... 2
5 Pin Configuration and Functions......................... 3
6 Specifications......................................................... 6
6.1 Absolute Maximum Ratings ..................................... 6
6.2 ESD Ratings.............................................................. 6
6.3 Recommended Operating Conditions....................... 7
6.4 Thermal Information.................................................. 7
6.5 DC Electrical Characteristics .................................... 7
6.6 AC Electrical Characteristics................................... 11
6.7 DC And AC Serial Control Bus Characteristics ...... 12
6.8 Recommended Timing for the Serial Control Bus .. 13
6.9 Timing Diagrams..................................................... 14
6.10 Typical Characteristics.......................................... 16
7 Detailed Description............................................ 17
7.1 Overview ................................................................. 17
7.2 Functional Block Diagram ....................................... 17
7.3 Feature Description................................................. 18
7.4 Device Functional Modes........................................ 32
7.5 Programming........................................................... 34
7.6 Register Maps......................................................... 38
8 Application and Implementation ........................ 68
8.1 Applications Information.......................................... 68
8.2 Typical Applications ................................................ 68
9 Power Supply Recommendations...................... 73
9.1 Power-Up Requirements and PDB Pin................... 73
10 Layout................................................................... 77
10.1 Layout Guidelines ................................................. 77
10.2 Layout Example .................................................... 78
11 器器件件和和文文档档支支持持 ..................................................... 79
11.1 文档支持 ............................................................... 79
11.2 接收文档更新通知 ................................................. 79
11.3 商标 ....................................................................... 79
11.4 静电放电警告......................................................... 79
11.5 Glossary................................................................ 79
12 机机械械、、封封装装和和可可订订购购信信息息....................................... 79
4 修修订订历历史史记记录录
Changes from Revision A (March 2019) to Revision B Page
• Changed V
DD11
maximum from 1.32 V back to 1.7 V............................................................................................................. 6
• 添加了
接收文档更新通知
部分 .............................................................................................................................................. 79
Changes from Original (November 2014) to Revision A Page
• Changed all references of HDMI Clock to TMDS Clock......................................................................................................... 3
• Changed V
DD11
maximum from: 1.7 V to: 1.32 V ................................................................................................................... 6
• Added RX_5V parameter to the Recommended Operating Conditions................................................................................. 7
• Added T
CLH1/2
and T
CHL1/2
parameters to the Recommended Operating Conditions .............................................................. 7
• Changed the TMDS jitter specification in the AC Electrical Characteristics table................................................................ 11
• Added additional HSCC information to the SPI Mode Configuration section....................................................................... 23
• Added information about using I2S with the DS90UH926-Q1 in the Audio Modes section................................................. 26
• Deleted Auto Soft Sleep mode from the MODE_SEL[1:0] Settings table ............................................................................ 32
• Added Frequency Detection Circuit section ......................................................................................................................... 34
• Added 5% resistor information to the Serial Control Bus section......................................................................................... 34
• Added information to Multi-Master Arbitration Support section ............................................................................................ 36
• Added additional information to register 0x01 ...................................................................................................................... 38
• Added registers 0x00, 0x13, 0x15, 0x5B, 0xC0, 0xC2, 0xC3, 0xC6, 0xC8, 0xCE, and 0xD0 to default list ....................... 38
• Changed information about GPIO0 modes x00 and x10 ..................................................................................................... 42
• Changed information about GPIO1 modes x00 and x10 ..................................................................................................... 43
• Added reset information to register 0x15 ............................................................................................................................. 47
• Changed the register 0x1A information................................................................................................................................ 48
• Added Registers 0x40, 0x41, and 0x42 ............................................................................................................................... 54
• Deleted Rev A1 silicon information....................................................................................................................................... 58
• Added 'Set to 0' test to the 0x5B register description........................................................................................................... 59
