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参数资料
| 型号： | AD8190ACPZ-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 5/24页 |
| 文件大小： | 0K |
| 描述： | IC SW HDMI/DVI 2:1 EQUAL 56LFCSP |
| 标准包装： | 750 |
| 类型： | HDMI/DVI 开关 |
| 应用： | DVI，HDMI 信号开关 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 56-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 56-LFCSP-VQ（8x8） |
| 包装： | 带卷 (TR) |
AD8190
Rev. 0 | Page 13 of 24
SWITCHING MODE
The AD8190 behaves like a 2:1 HDMI/DVI switch by imple-
menting a quad switching mode. In this mode, the user selects
the high speed source (A or B) that is routed to the output by
programming the HS_CH bit of the high speeds modes register
as shown in Table 7. The low speed auxiliary source (AUX_A or
AUX_B) that is routed to the common output is separately set
by programming the AUX_CH bit of the auxiliary device
register as shown in Table 9.
AUXILIARY LINES SWITCHING
The auxiliary (low speed) lines have no amplification. They are
routed using a passive switch that is bandwidth compatible with
standard speed I2C. The schematic equivalent for this passive
connection is shown in Figure 27.
AUX_COM0
AUX_A0
CAUX
RAUX
06
122
-006
Figure 27. Auxiliary Channel Simplified Schematic
Showing AUX_A0 to AUX_COM0 Routing
When turning off the AD8190, care needs to be taken with
the AMUXVCC supply to ensure that the auxiliary multiplexer
pins are in a high impedance state. A scenario that illustrates
this requirement is one where the auxiliary multiplexer is used
to switch the display data channel (DDC) bus. In some applica-
tions, additional devices can be connected to the DDC bus
(such as an EEPROM with EDID information) upstream of the
AD8190. Extended display identification data (EDID) is a VESA
standard-defined data format for conveying display configuration
information to sources to optimize display use. EDID devices
may need to be available via the DDC bus, regardless of the
state of the AD8190 and any downstream circuit. For this
configuration, the auxiliary inputs of the powered down
AD8190 need to be in a high impedance state to avoid pulling
down on the DDC lines and preventing these other devices
from using the bus.
When the AD8190 is powered from a simple resistor network,
as shown in Figure 28, it uses the 5 V supply that is required
from any HDMI/DVI source to guarantee high impedance of
the auxiliary multiplexer pins. The AMUXVCC supply does not
draw any static current; therefore, it is recommended that the
resistor network tap the 5 V supplies as close to the connectors
as possible to avoid any additional voltage drop.
This precaution does not need to be taken if the DDC
peripheral circuitry is connected to the bus downstream of
the AD8190.
PERIPHERAL
CIRCUITRY
PERIPHERAL
CIRCUITRY
10k
10M
AD8190
AMUXVCC
+5V INTERNAL
(IF ANY)
10k
I < 50mA
PIN 18 HDMI CONNECTOR
PIN 14 DVI CONNECTOR
PIN 18 HDMI CONNECTOR
PIN 14 DVI CONNECTOR
+5V
SOURCE A
SOURCE B
06
12
2-
00
7
Figure 28. Suggested AMUXVCC Power Scheme
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD8190-EVAL | 制造商:Analog Devices 功能描述:EVAL BD FOR AD8190 ,2:1 HDMI/DVI SWIT W/ EQUALIZATION - Bulk |
| AD8191 | 制造商:Analog Devices 功能描述:- Bulk |
| AD8191A | 制造商:AD 制造商全称:Analog Devices 功能描述:4:1 HDMI/DVI Switch with Equalization |
| AD8191AASTZ | 功能描述:IC HDMI/DVI SWITCH 4:1 100LQFP RoHS:是 类别:集成电路 (IC) >> 接口 - 模拟开关，多路复用器，多路分解器 系列:- 其它有关文件:STG4159 View All Specifications 标准包装:5,000 系列:- 功能:开关 电路:1 x SPDT 导通状态电阻:300 毫欧 电压电源:双电源 电压 - 电源，单路/双路(±):±1.65 V ~ 4.8 V 电流 - 电源:50nA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:7-WFBGA，FCBGA 供应商设备封装:7-覆晶 包装:带卷 (TR) |
| AD8191AASTZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:4:1 HDMI/DVI Switch with Equalization |
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