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器件3D模型￥ 28.321
DS90UB947TRGCRQ1 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
封装:
VQFN-64
描述:
1080p 双路 FPD-Link III 串行器 64-VQFN -40 to 105
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P3P4P5P70P71Hot
典型应用电路图在P65P66P67P68
原理图在P14
封装尺寸在P74P76P77
标记信息在P74
封装信息在P73P74P75P76P77
功能描述在P37P38P39P40P41P42P43P44P45P46P47P48
技术参数、封装参数在P6P73
应用领域在P1P65P66P67P68P81
电气规格在P7P8
导航目录
DS90UB947TRGCRQ1数据手册
Page:
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D
OUT
-
D
OUT
+
SER
R
IN
-
R
IN
+
DES
50Q
50Q
D
OUT
-
D
OUT
+
SER
R
IN
-
R
IN
+
DES
FPD-Link III
2 lanes @3Gbps / per
Lane
VDDIO
1.8V
IDx
DOUT0+
DOUT0-
1.1V
DOUT1+
DOUT1-
RIN0+
RIN0-
RIN1+
RIN1-
CLK+/-
CLK2+/-
FPD-Link
(OpenLDI)
D0+/-
D1+/-
D2+/-
D3+/-
D4+/-
D5+/-
D6+/-
D7+/-
DS90UB947-Q1
Serializer
DS90UB948-Q1
Deserializer
IDx
D_GPIO
(SPI)
D_GPIO
(SPI)
LVDS
Display
1080p60
or Graphic
Processor
Graphics
Processor
I2C
VDDIO
1.8V or 3.3V
1.2V
I2C
3.3V1.8V
CLK+/-
D0+/-
D1+/-
D2+/-
D3+/-
D4+/-
D5+/-
D6+/-
D7+/-
FPD-Link
(OpenLDI)
DS90UB947-Q1
SNLS454 –NOVEMBER 2014
www.ti.com
Typical Applications (continued)
Figure 37. Typical System Diagram
9.2.1 Design Requirements
The SER/DES supports only AC-coupled interconnects through an integrated DC-balanced decoding scheme.
External AC coupling capacitors must be placed in series in the FPD-Link III signal path as illustrated in
Figure 38.
Table 11. Design Parameters
DESIGN PARAMETER EXAMPLE VALUE
VDDIO 1.8V
AC Coupling Capacitor for DOUT0± and DOUT1± with 92x
100nF
deserializers
AC Coupling Capacitor for DOUT0± and DOUT1± with 94x 33nF
deserializers
For applications utilizing single-ended 50Ω coaxial cable, the unused data pins (DOUT0-, DOUT1-) should utilize
a 15nF capacitor and should be terminated with a 50Ω resistor.
Figure 38. AC-Coupled Connection (STP)
Figure 39. AC-Coupled Connection (Coaxial)
For high-speed FPD–Link III transmissions, the smallest available package should be used for the AC coupling
capacitor. This will help minimize degradation of signal quality due to package parasitics.
9.2.2 Detailed Design Procedure
9.2.2.1 High Speed Interconnect Guidelines
See AN-1108 and AN-905 for full details.
• Use 100Ω coupled differential pairs
68 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated
Product Folder Links: DS90UB947-Q1
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