參數(shù)資料
型號(hào)： AD9984AKCPZ-170
廠商： ANALOG DEVICES INC
元件分類： 其它接口
英文描述： High Performance 10-Bit Display Interface
中文描述： SPECIALTY INTERFACE CIRCUIT, QCC64
封裝： 9 X 9 MM, ROHS COMPLIANT, MO-220VMMD-4, LFCSP-64
文件頁數(shù)： 35/44頁
文件大?。?/td> 490K
代理商： AD9984AKCPZ-170
AD9984A
INPUT AND POWER CONTROL
0x1E—Bit[7] Channel Select Override
This bit provides an override to the automatic input channel
selection. Power-up default setting is 0.
Rev. 0 | Page 35 of 44
Table 43. Channel Select Override Bit
Value
Result
0
Channel input source determined by chip.
1
Channel input source determined by user,
(Register 0x1E, Bit 6).
0x1E—Bit[6] Channel Select
This bit selects the active input channel if Bit 7 of Register 0x1E
is 1. This selects between Channel 0 data and syncs or Channel 1
data and syncs. Power-up default setting is 0.
Table 44. Channel Select Bit
Value
Result
0
Channel 0 data and syncs are selected.
1
Channel 1 data and syncs are selected.
0x1E—Bit[5] Programmable Bandwidth
This bit selects between a low or high input bandwidth; having
a low input bandwidth is useful in limiting noise for lower
frequency inputs. The power-up default setting is 1. Low analog
input bandwidth is ~7 MHz; high analog input bandwidth is
~300 MHz.
Table 45. Programmable Bandwidth Bit
Value
Result
0
Low analog input bandwidth.
1
High analog input bandwidth.
0x1E—Bit[4] Power-Down Control Select
This bit determines whether power-down is controlled manually or
automatically by the chip. If automatic control is selected (by
setting this bit to 1), the AD9984A’s decision is based on the
status of the some of the sync detect bits (Register 0x24, Bit 2,
Bit 3, Bit 6, and Bit 7). If either an Hsync or a sync-on-green
input is detected on any input, the chip powers up or powers
down. For manual control, the AD9984A allows the flexibility
of control through both a dedicated pin and a register bit. The
dedicated pin allows a hardware watchdog circuit to control
power-down, whereas the register bit allows power-down to be
controlled by software. With manual power-down control, the
polarity of the power-down pin must be set (Register 0x1E, Bit 2)
whether it is used or not. If unused, it is recommended to set
the polarity to active high and hardwire the pin to ground with a
10 kΩ resistor.
Table 46. Power-Down Control Select Bit
Value
Result
0
Manual power-down control (user determines
power-down).
1
Auto power-down control (chip determines
power-down).
0x1E—Bit[3] Power-Down
This bit is used to manually place the chip in power-down
mode. It is only used if manual power-down control is selected
(Register 0x1E, Bit 4 = 0). Both the state of this register bit
and the power-down pin (Pin 17) are used to control manual
power-down. (See the Power Management section for more
details on power-down.)
Table 47. Power-Down Bit
Value
Pin 17
0
0
1
X
0x1E—Bit[2] Power-Down Pin Polarity
This bit defines the polarity of the power-down pin (Pin 17).
It is only used if manual power-down control is selected
(Register 0x1E, Bit 4 = 0).
Result
Normal operation.
Power-down.
Table 48. Power-Down Pin Polarity Bit
Value
Result
0
PWRDN polarity is negative.
1
PWRDN polarity is positive.
0x1E—Bit[1] Power-Down Fast Switching Control
This bit controls a special fast switching mode. With this bit, the
AD9984A can stay active during power-down and only puts the
outputs in high impedance. This option is useful when the data
outputs from two chips are connected on a PCB and the user
wants to instantaneously switch between the two.
Table 49. Power-Down Fast Switching Control Bit
Value
Result
0
Normal power-down operation.
1
The chip stays powered up, and the outputs are put
in high impedance mode.
0x1E—Bit[0] SOGOUT High Impedance Control
This bit controls whether or not the SOGOUT output pin is in
high impedance when in power-down mode. In most cases,
SOGOUT is not put in high impedance during normal operation
because it is usually needed for sync detection by the graphics
controller. The option to put SOGOUT in high impedance is
included mainly to allow for factory testing modes.
Table 50. SOGOUT High Impedance Control Bit
Value
Result
0
The SOGOUT operates as normal during power-down.
1
The SOGOUT is in high impedance during
power-down.
OUTPUT CONTROL
0x1F—Bits[7:5] Output Mode
These bits choose between three options for the output mode.
In 4:4:4 mode, RGB is standard. In 4:2:2 mode, YCbCr is standard,
which reduces the number of output pins from 30 to 20. In 4:4:4
DDR output mode, the data is in RGB mode, but changes on
every clock edge. The power-up default setting is 100.
相關(guān)PDF資料
PDF描述
AD9984AKSTZ-140 High Performance 10-Bit Display Interface
AD9984AKSTZ-170 High Performance 10-Bit Display Interface
AD9984APCBZ High Performance 10-Bit Display Interface
AD9985A 110 MSPS/140 MSPS Analog Interface for Flat Panel Displays
AD9985ABSTZ-110 110 MSPS/140 MSPS Analog Interface for Flat Panel Displays
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD9984AKSTZ-140 功能描述:IC DISPLAY 10BIT 140MSPS 80LQFP RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動(dòng)電話，手機(jī)，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064
AD9984AKSTZ-170 功能描述:IC DISPLAY 10BIT 170MSPS 80LQFP RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動(dòng)電話，手機(jī)，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064
AD9984APCBZ 制造商:AD 制造商全稱:Analog Devices 功能描述:High Performance 10-Bit Display Interface
AD9984KSTZ-110 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述:
AD9984KSTZ-140 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述:
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