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参数资料
| 型号： | AD8190ACPZ-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 6/24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 14 of 24
SERIAL CONTROL INTERFACE
RESET
On initial power-up, or at any point in operation, the AD8190
register set can be restored to the default values by pulling the
RESET pin to low according to the specification in Table 1.
During normal operation, however, the RESET pin must be
pulled up to 3.3 V. Pulling the RESET pin to low sets the
HS_CH register to 0 (Input A) and incurs the associated
switching delay before the input can be switched to Input B,
regardless of the previous state of the AD8190.
WRITE PROCEDURE
To write data to the AD8190 register set, an I2C master (such as
a microcontroller) needs to send the appropriate control signals
to the AD8190 slave device. The signals are controlled by the
I2C master unless otherwise specified. For a diagram of the
procedure, see Figure 29. The steps for a write procedure are as
follows:
1.
Send a start condition (while holding the I2C_SCL line
high, pull the I2C_SDA line low).
2.
Send the AD8190 part address (seven bits). The upper six
bits of the AD8190 part address are the static value
[100100] and the LSB is set by Input Pin I2C_ADDR. This
transfer should be MSB first.
3.
Send the write indicator bit (0).
4.
Wait for the AD8190 to acknowledge the request.
5.
Send the register address (eight bits) to which data is to be
written. This transfer should be MSB first.
6.
Wait for the AD8190 to acknowledge the request.
7.
Send the data (eight bits) to be written to the register
whose address was set in Step 5. This transfer should be
MSB first.
8.
Wait for the AD8190 to acknowledge the request.
9.
Do one of the following:
a.
Send a stop condition (while holding the I2C_SCL
line high, pull the I2C_SDA line high) and release
control of the bus to end the transaction (shown in
b.
Send a repeated start condition (while holding the
I2C_SCL line high, pull the I2C_SDA line low) and
continue with Step 2 in this procedure to perform
another write.
c.
Send a repeated start condition (while holding the
I2C_SCL line high, pull the I2C_SDA line low) and
continue with Step 2 of the read procedure (in the
Read Procedure section) to perform a read from
another address.
d.
Send a repeated start condition (while holding the
I2C_SCL line high, pull the I2C_SDA line low) and
continue with Step 8 of the read procedure (in the
Read Procedure section) to perform a read from the
same address set in Step 5.
R/W
ACK
ADDR
START
FIXED ADDR PART
REGISTER ADDR
DATA
STOP
ACK
1
2
3
4
5
6
7
8
9
I2C_SCL
GENERAL CASE
I2C_SDA
EXAMPLE
I2C_SDA
06
12
2-
00
8
*THE SWITCHING/UPDATE DELAY BEGINS AT THE FALLING EDGE OF THE
LAST DATA BIT; FOR EXAMPLE, THE FALLING EDGE JUST BEFORE STEP 8.
*
Figure 29. I2C Write Procedure
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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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