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參數(shù)資料
| 型號： | AD9882AKSTZ-140 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 26/40頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC INTERFACE/DVI 100MHZ 100LQFP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 應(yīng)用： | 視頻 |
| 接口： | 模擬，DVI |
| 電源電壓： | 3.15 V ~ 3.45 V |
| 封裝/外殼： | 100-LQFP |
| 供應(yīng)商設(shè)備封裝： | 100-LQFP（14x14） |
| 包裝： | 管件 |
| 安裝類型： | 表面貼裝 |
| 產(chǎn)品目錄頁面： | 788 (CN2011-ZH PDF) |
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AD9882A
Rev. 0 | Page 32 of 40
Table 45. Active Hsync Results
Hsync Detect
Register
0x15,Bit 7
SOG Detect
Register
0x,10 Bit 4
Override
Register
0x,15 Bit 6
AHS
Register
0x16,Bit 7
0
Bit 3 in
0x10
0
1
0
1
0
1
0
Bit 3 in
0x10
X
1
Bit 3 in
0x10
AHS = 0 means use the Hsync pin input for Hsync. AHS = 1
means use the SOG pin input for Hsync. The override bit is in
Register 0x10, Bit 4.
0x16 6
Detected Hsync Input Polarity Status
This bit reports the status of the Hsync input polarity detection
circuit. It can be used to determine the polarity of the Hsync
input. The detection circuit’s location is shown Figure 20.
Table 46. Detected Hsync Input Polarity Status
Hsync Polarity Status
Result
0
Hsync polarity is negative/active low.
1
Hsync polarity is positive/active high.
0x16 5
AVS Active Vsync
This bit indicates which Vsync source is being used for the
analog interface, the Vsync input or output from the sync
separator. If the override bit (0x10, Bit 1) is set to Logic 1, then
this bit will be forced to the same state as Bit 0 in Register 0x10.
Table 47. Active Vsync Results
Vsync Detect
Register
0x16 Bit 5
Override
Register
0x10 Bit 1
AVS
0
1
0
1
X
1
Bit 0 in 0x10
AVS = 0 means Vsync input. AVS = 1 means sync separator.
The override bit is in Register 0x10, Bit 1.
0x16 4
Detected Vsync Output Polarity Status
This bit reports the status of the Vsync output polarity
detection circuit. It can be used to determine the polarity of the
Vsync output. The detection circuit’s location is shown in
Table 48. Detected Vsync Input Polarity Status
Vsync Polarity Status
Result
0
Vsync polarity is active high.
1
Vsync polarity is active low.
0x16 3 Detected Coast Polarity Status
This bit reports the status of the coast input polarity detection
circuit. The detection circuit’s location is shown in Figure 20.
This bit applies only to the internal coast and does not apply
when coast is disabled.
Table 49. Detected Coast Input Polarity Status
Hsync Polarity Status
Result
0
Coast polarity is negative/active low.
1
Coast polarity is positive/active high.
0x16 2
Key Read Verification
This bit reports wherever HDCP keys are detected.
Table 50. Key Read Verification
Detect
Function
0
Not detected
1
Detected
0x1B 7
MDA and MCL Three-State
The MDA and MCL three-state feature allows the EEPROM to
be programmed in-circuit. The MDA/MCL port must be three-
stated before attempting to program the EEPROM using an
external master. The keys are stored in an I2C compatible 3.3 V
serial EEPROM of at least 512 bytes. The EEPROM should have
a device address of 0xA0.
0x1C 0 RxC Connect
The RxC (DVI differential clock pair) can be disconnected via
software if the HDCP specified hot plug detect does not work to
resynchronize the HDCP transmitter engine. To use this
function, write this bit to 0 (0xR1C to 0x0E) then back to 1
(0xR1C to 0x0F). This signals to the DVI transmitter to restart
the HDCP protocol. It is recommended that the user perform
this toggle of the bit whenever switching from analog to digital
inputs.
Table 51. DVI Clock Connect
Set
Function
0
RxC lines disconnected (open).
1
RxC lines connected internally.
2-WIRE SERIAL CONTROL PORT
A 2-wire serial control interface is provided. Two AD9882A
devices can be connected to the 2-wire serial interface, with
each device having a unique address.
The 2-wire serial interface comprises a clock (SCL) and a
bidirectional data (SDA) pin. The analog flat panel interface
acts as a slave for receiving and transmitting data over the serial
interface. When the serial interface is not active, the logic levels
on SCL and SDA are pulled high by external pull-up resistors.
Data received or transmitted on the SDA line must be stable for
the duration of the positive-going SCL pulse. Data on SDA must
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| AD9882KSTZ-100 | 功能描述:IC INTERFACE/DVI 100MHZ 100LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:- 特色產(chǎn)品:NXP - I2C Interface 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:2 通道 I²C 多路復(fù)用器 接口:I²C，SM 總線 電源電壓:2.3 V ~ 5.5 V 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:剪切帶 (CT) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:825 (CN2011-ZH PDF) 其它名稱:568-1854-1 |
| AD9882KSTZ-140 | 功能描述:IC INTERFACE/DVI 100MHZ 100LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:- 特色產(chǎn)品:NXP - I2C Interface 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:2 通道 I²C 多路復(fù)用器 接口:I²C，SM 總線 電源電壓:2.3 V ~ 5.5 V 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:剪切帶 (CT) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:825 (CN2011-ZH PDF) 其它名稱:568-1854-1 |
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