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參數資料
| 型號： | AD7183 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Advanced Video Decoder with 10-Bit ADC and Component Input Support |
| 中文描述： | 先進的視頻解碼器，10位ADC和組件輸入支持 |
| 文件頁數： | 32/41頁 |
| 文件大小： | 484K |
| 代理商： | AD7183 |
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REV. 0
–32–
ADV7183
Table XL. Luma Gain Control 1 Register (Subaddress 2F)
Bit Description
LMG[11:8]
RESERVED
LAGT[1:0]
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register Setting
X
X
1
1
0
0
0
1
1
0
1
1
1
X
X
Set to One
Slow (TC = 2 sec)
Medium (TC = 1 sec)
Fast (TC = 0.2 sec)
Dependent on VID_QUAL
2
NOTES
1
Luma Manual Gain. Can be used to program a desired manual chroma gain or read back the actual used gain value. LAGC[1:0] settings will decide in which mode
LMG[11:0] will operate.
2
Luma Automatic Gain Timing. Allows adjustment of the Luma AGC tracking speed. Will only have effect if LAGC[1:0] is set to auto gain (001, 010, 001, or 100).
Table XLI. Luma Gain Control 2 Register (Subaddress 30)
Bit Description
LMG[7:0]
*
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register Setting
X
X
X
X
X
X
X
X
LAGC [1:0] Settings Will Decide What
Mode LMG [11:0] Operates In.
*
Luma Manual Gain. Can be used to program a desired manual chroma gain or read back the actual used gain value.
Table XLII. Manual Gain Shadow Control 1 Register (Subaddress 31)
Bit Description Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register Setting
LMGS[11:8]
1
RESERVED
1
1
1
SGUE
2
0
1
NOTES
1
Luma Manual Gain Store. Has dual functions; a desired manual luma gain can be programmed or a readback from the register will return the actual gain used. Gain
value will only become active when LAGC[2:0] set to manual fixed gain. The function and readback value are dependent on LAGC[2:0] setting.
2
Surveillance Gain Update Enable. Enables surveillance mode operation (see LMGS[11:0] for details).
X
X
X
X
Set to One
Disable LMGS Update
Use LMGS Update Facility
Table XLIII. Manual Gain Shadow Control 2 Register (Subaddress 32)
Bit Description Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register Setting
LMG[7:0]
*
X
X
X
X
*
Chroma Manual Gain. Lower 8 bits, see LMG[11:8] for description.
X
X
X
X
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