DS90UB925Q-Q1 Datasheet, PDF (38/51 Pages) Texas Instruments – 5 to 85 MHz 24-Bit Color FPD-Link III Serializer With Bidirectional Control Channel

DS90UB925Q-Q1
SNLS407D – APRIL 2012 – REVISED OCTOBER 2014
8 Application and Implementation
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NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
8.1 Application Information
The DS90UB925Q-Q1, in conjunction with the DS90UB926Q-Q1, is intended for interface between a host
(graphics processor) and a Display. It supports a 24-bit color depth (RGB888) and high definition (720p) digital
video format. It can receive a three 8-bit RGB stream with a pixel rate up to 85 MHz together with three control
bits (VS, HS and DE) and three I2S-bus audio stream with an audio sampling rate up to 192 kHz.
8.2 Typical Application
3.3V/1.8V
DS90UB925Q-Q1
3.3V
FB1
C5
VDDIO
VDD33
C4
FB2
LVCMOS
Parallel
Video
Interface
VDDIO VDD33*
LVCMOS
Control
Interface
R₆
R₅
C10
DIN0
DIN1
DIN2
DIN3
DIN4
DIN5
DIN6
DIN7
DIN8
DIN9
DIN10
DIN11
DIN12
DIN13
DIN14
DIN15
DIN16
DIN17
DIN18
DIN19
DIN20
DIN21
DIN22
DIN23
PCLK
HS
VS
DE
INTB
PDB
I2S_CLK
I2S_WC
I2S_DA
CAPP12
C6
CAPL12
C7 C8
CAPHS12
C9
C1
DOUT+
DOUT-
CMF
C2
C3
Serial
FPD-Link III
Interface
MODE_SEL
ID[X]
SCL
SDA
NC
RES
DAP (GND)
VDD33
R₃
R₄
VDD33
NOTE:
R₁ ^{FB1-FB2: Impedance = 1 k: @ 100 MHz,}
Low DC resistance (<1:)
C1-C3 = 0.1 PF (50 WV; C1, C2: 0402; C3: 0603)
R_{2 C4-C9 = 4.7 PF}
C10 =>10 PF
R₁ and R₂ (see IDx Resistor Values Table 5)
R₃ and R₄ (see MODE_SEL Resistor Values Table 1)
R₅ = 10 k:
R₆ = 4.7 k:
* or VDDIO = 3.3V+0.3V
Figure 23. Typical Connection Diagram
38
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