參數資料
型號： AD9985AKSTZ-140
廠商： ANALOG DEVICES INC
元件分類： 其它接口
英文描述： 110 MSPS/140 MSPS Analog Interface for Flat Panel Displays
中文描述： SPECIALTY INTERFACE CIRCUIT, PQFP80
封裝： LEAD FREE, MS-026-BEC, PLASTIC, LQFP-80
文件頁數： 23/32頁
文件大?。?/td> 344K
代理商： AD9985AKSTZ-140
AD9985A
Table 24. Coast Input Polarity Override Settings
Override
Result
0
Determined by chip (power-up default)
1
Determined by user
Rev. 0 | Page 23 of 32
0F
3
This bit indicates the polarity of the Coast signal that
is applied to the PLL COAST input.
Table 25. Coast Input Polarity Settings
Coast Polarity
Result
0
Active low
1
Active high (power-up default)
Coast Input Polarity
Active low means that the clock generator ignores
Hsync inputs when Coast is low, and continues
operating at the same nominal frequency until Coast
goes high.
Active High means that the clock generator ignores
Hsync inputs when Coast is high, and continues
operating at the same nominal frequency until Coast
goes low.
This function needs to be used along with the Coast
polarity override bit (Bit 4).
0F
2
This bit is used to either allow or disallow the low
power mode. The low power mode (seek mode)
occurs when there are no signals on any of the Sync
inputs.
Table 26. Seek Mode Override Settings
Override
Result
1
Allow seek mode (power-up default)
0
Disallow seek mode
Seek Mode Override
0F
1
This bit is used to put the chip in full power-down. See
the Power Management section for details on which
blocks are powered down.
Table 27. Power-Down Settings
Power-Down
Result
0
Power-down
1
Normal operation
PWRDN
10
7-3
This register allows the comparator threshold of the
sync-on-green slicer to be adjusted. This register
adjusts it in steps of 10 mV, with the minimum setting
equaling 10 mV (11111) and the maximum setting
equaling 330 mV (00000).
Sync-on-Green Slicer Threshold
The default setting is 23, which corresponds to a
threshold value of 100 mV; for a threshold of 150 mV,
the setting should be 18.
10
2
This bit determines whether the red channel is
clamped to ground or to midscale. For RGB video, all
three channels are referenced to ground. For YCbCr
(or YUV), the Y channel is referenced to ground, but
the CbCr channels are referenced to midscale.
Clamping to midscale actually clamps to Pin 37.
Red Clamp Select
Table 28. Red Clamp Select Settings
Clamp
Result
0
Clamp to ground (power-up default)
1
Clamp to midscale (Pin 37)
10
1
This bit determines whether the green channel is
clamped to ground or to midscale.
Table 29. Green Clamp Select Settings
Clamp
Result
0
Clamp to ground (power-up default)
1
Clamp to midscale (Pin 37)
Green Clamp Select
10
0
This bit determines whether the blue channel is
clamped to ground or to midscale.
Table 30. Blue Clamp Select Settings
Clamp
Result
0
Clamp to ground (power-up default)
1
Clamp to midscale (Pin 37)
Blue Clamp Select
11
7–0
This register is used to set the responsiveness of the
sync separator. It sets the number of internal 5 MHz
clock periods the sync separator must count to before
toggling high or low. It works like a low-pass filter to
ignore Hsync pulses in order to extract the Vsync
signal. This register should be set to some number
greater than the maximum Hsync pulse width. The
sync separator threshold uses an internal dedicated
clock with a frequency of approximately 5 MHz.
The default for this register is 32.
7–0 Pre-Coast
This register allows the Coast signal to be applied
prior to the Vsync signal. This is necessary in cases
where pre-equalization pulses are present. The step
size for this control is one Hsync period.
The default is 0.
Sync Separator Threshold
12
13
7–0
This register allows the Coast signal to be applied
following the Vsync signal. This is necessary when
post-equalization pulses are present. The step size for
this control is one Hsync period.
Post-Coast
The default is 0.
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PDF描述
AD9985BSTZ-110 110 MSPS/140 MSPS Analog Interface for Flat Panel Displays
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相關代理商/技術參數
參數描述
AD9985BST-110 制造商:Analog Devices 功能描述:110 MSPS/140 MSPS ANLG INTRFC FOR FLAT PNL DISPLAYS 80LQFP - Bulk
AD9985BSTZ-110 功能描述:IC INTERFACE 8BIT 110MSPS 80LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:- 特色產品:NXP - I2C Interface 標準包裝:1 系列:- 應用:2 通道 I²C 多路復用器 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） 供應商設備封裝:16-TSSOP 包裝:剪切帶 (CT) 安裝類型:表面貼裝 產品目錄頁面:825 (CN2011-ZH PDF) 其它名稱:568-1854-1
AD9985KST-110 制造商:Analog Devices 功能描述:110 MSPS/140 MSPS ANLG INTRFC FOR FLAT PNL DISPLAYS 80LQFP - Bulk
AD9985KSTZ-110 功能描述:IC INTERFACE 8BIT 110MSPS 80LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:- 特色產品:NXP - I2C Interface 標準包裝:1 系列:- 應用:2 通道 I²C 多路復用器 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） 供應商設備封裝:16-TSSOP 包裝:剪切帶 (CT) 安裝類型:表面貼裝 產品目錄頁面:825 (CN2011-ZH PDF) 其它名稱:568-1854-1
AD9985KSTZ-140 功能描述:IC INTERFACE 8BIT 140MSPS 80LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:- 標準包裝:3,000 系列:- 應用:PDA，便攜式音頻/視頻，智能電話 接口:I²C，2 線串口 電源電壓:1.65 V ~ 3.6 V 封裝/外殼:24-WQFN 裸露焊盤 供應商設備封裝:24-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) 安裝類型:表面貼裝 產品目錄頁面:1015 (CN2011-ZH PDF) 其它名稱:296-25223-2
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