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參數(shù)資料
| 型號： | DS17887-3 |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Timer or RTC |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, DMA24 |
| 封裝： | PLASTIC, MODULE, DIP-24 |
| 文件頁數(shù)： | 4/18頁 |
| 文件大?。?/td> | 343K |
| 代理商： | DS17887-3 |
MAX3816A
I2C 2-Wire Extender for DDC in DVI,
HDMI, and VGA Interfaces
12
______________________________________________________________________________________
Figure 5. Typical In-Display Application Circuit
DRVR_EN
VCC
CLOCK_C
DATA_C
GND_REF
CLOCK_D
VSS
DATA_D
VDD
I2C SCL
I2C SDA
DISPLAY 3.3V
DISPLAY I2C BUS
REFERENCE TO 3.3V
47k
Ω
47k
Ω
2.2k
Ω
2.2k
Ω
10
μF
10
μF
GROUND PLANE
VDD
1
μF
LONG CABLE FROM VIDEO SOURCE:
DVI, HDMI, OR M1 CONNECTOR
CABLE UP TO 60m (200ft)
VCC
DISPLAY GND
DDC SCL
DDC SDA
DDC +5V
SHIELD GNDS
DDC GND
DISPLAY CIRCUIT BOARD
VDD OR VSS (SEE DESCRIPTION)
MODE
VSS
MAX3816A
Applications Information
Use Single MAX3816A at Display Side
A single MAX3816A is designed to achieve full
100kbps operation over 60m (200ft) of cable.
In-Display Application, Series Mode
When inserted at the front-end of a display, the source
side of the MAX3816A should be powered by the
source VCC (typically 5V) and ground (GND_REF). The
display-side VDD should be powered by the local dis-
play supply (typically 3.3V) to level-shift and diminish
the effects of supply noise and offset between source
and display (Figure 5). Supply decoupling capacitors of
at least 10F should be connected close to the
MAX3816A between GND_REF and VSS, as well as
between GND_REF and VCC.
MAX3816A In-Display, Series Mode Advantages
(See Figure 5)
Long cable reach.
The MAX3816A acts as a buffer between source and
display. Hence, source reflections are isolated to the
source side of the MAX3816A, protecting display cir-
cuits from reflections (stair-step waveforms).
The MAX3816A can be turned off (DRVR_EN assert-
ed low) to isolate source and display buses. The dis-
play bus can then operate independently of
source-cable loading or malfunctions.
Multiple MAX3816As can be used in parallel as an
input mux to display, with only one “on” at a time.
Consideration
When using the level-shifter feature, as shown, and assum-
ing the display 3.3V supply is off when the display is off,
the Display EDID Prom will not be able to communicate to
source DDC. If required, the solution is to either place a 5V
EDID Prom on the source side of the MAX3816A or derive
the 3.3V VDD from the DDC +5V supply.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS17887-3+ | 功能描述:實時時鐘 3V/5V RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS17887-3IND | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Real-Time Clocks |
| DS17887-3-IND | 功能描述:實時時鐘 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS17887-3IND+ | 功能描述:實時時鐘 3V/5V RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS17887-5 | 功能描述:實時時鐘 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
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