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參數(shù)資料
| 型號： | ADV7183A |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Multiformat SDTV Video Decoder |
| 中文描述： | 標(biāo)清多格式視頻解碼器 |
| 文件頁數(shù)： | 17/104頁 |
| 文件大?。?/td> | 894K |
| 代理商： | ADV7183A |
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ADV7183A
GLOBAL PIN CONTROL
Three-State Output Drivers
Rev. A | Page 17 of 104
TOD, Address 0x03, [6]
This bit allows the user to three-state the output drivers of the
ADV7183A.
Upon setting the TOD bit, the P15–P0, HS, VS, FIELD, and SFL
pins are three-stated.
Note that the timing pins (HS/VS/FIELD) can be forced active
via the TIM_OE bit. For more information on three-state
control, refer to the following sections:
Three-State LLC Driver
Timing Signals Output Enable
Individual drive strength controls are provided via the
DR_STR_XX bits.
Note that the ADV7183A supports three-stating via a dedicated
pin. When set high, the OE pin three-states the output drivers
for P15–P0, HS, VS, FIELD, and SFL. The output drivers are
three-stated if the TOD bit or the OE pin is set high.
Table 17. TOD Function
TOD
0*
1
*Default value.
Three-State LLC Driver
Description
Output drivers enabled.
Output drivers three-stated.
TRI_LLC, Address 0x0E, [6]
This bit allows the output drivers for the LLC1 and LLC2 pins
of the ADV7183A to be three-stated. For more information on
three-state control, refer to the following sections:
Three-State Output Drivers
Timing Signals Output Enable
Individual drive strength controls are provided via the
DR_STR_XX bits.
Table 18. TRI_LLC Function
TRI_LLC
Description
0*
LLC pin drivers working according to the
DR_STR_C[1:0] setting (pin enabled).
1
LLC pin drivers three-stated.
*Default value.
Timing Signals Output Enable
TIM_OE, Address 0x04, [3]
The TIM_OE bit should be regarded as an addition to the TOD
bit. Setting it high forces the output drivers for HS, VS, and
FIELD into the active (i.e., driving) state even if the TOD bit is
set. If set to low, the HS, VS, and FIELD pins are three-stated
dependent on the TOD bit. This functionality is useful if the
decoder is to be used as a timing generator only. This may be
the case if only the timing signals are to be extracted from an
incoming signal, or if the part is in free-run mode where a
separate chip can output, for instance, a company logo.
For more information on three-state control, refer to the
following sections:
Three-State Output Drivers
Three-State LLC Driver
Individual drive strength controls are provided via the
DR_STR_XX bits.
Table 19. TIM_OE Function
TIM_OE
Description
0*
HS, VS, FIELD three-stated according to the TOD bit.
1
HS, VS, FIELD are forced active all the time. The
DR_STR_S[1:0] setting determines drive strength.
*Default value.
Drive Strength Selection (Data)
DR_STR[1:0] Address 0x04, [5:4]
For EMC and crosstalk reasons, it may be desirable to
strengthen or weaken the drive strength of the output drivers.
The DR_STR[1:0] bits affect the P[15:0] output drivers.
For more information on three-state control, refer to the
following sections:
Drive Strength Selection (Clock)
Drive Strength Selection (Sync)
Table 20. DR_STR Function
DR_STR[1:0]
00
01*
10
11
*Default value.
Description
Low drive strength (1×).
Medium low drive strength (2×).
Medium high drive strength (3×).
High drive strength (4×).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADV7183ABST | Multiformat SDTV Video Decoder |
| ADV7183AKST | Multiformat SDTV Video Decoder |
| ADV7330 | Multiformat 11-Bit Triple DAC Video Encoder |
| ADV7330KST | Multiformat 11-Bit Triple DAC Video Encoder |
| ADXL321 | Small and Thin 18 g Accelerometer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADV7183ABST | 制造商:Analog Devices 功能描述: 制造商:Rochester Electronics LLC 功能描述: |
| ADV7183AKST | 制造商:Analog Devices 功能描述:MULTIFORMAT SDTV VIDEO DECODER 制造商:Rochester Electronics LLC 功能描述:10BIT NTSC/PAL/SECAMVIDDECOD I.C - Tape and Reel 制造商:Analog Devices 功能描述:IC VIDEO ENCODER |
| ADV7183AKST-U1 | 制造商:Analog Devices 功能描述:VID DECODER 80LQFP - Bulk |
| ADV7183AKST-X2 | 制造商:Analog Devices 功能描述:VID DECODER - Bulk |
| ADV7183AXST | 制造商:Analog Devices 功能描述:VIDEO DECODER I.C. - Bulk |
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