ADV7185KSTZ Analog Devices Inc, ADV7185KSTZ Datasheet - Page 33

• Manufacturer Part Number: ADV7185KSTZ
• Manufacturer: Analog Devices Inc

Specifications of ADV7185KSTZ

• Adc/dac Resolution: 10b
• Screening Level: Commercial
• Package Type: LQFP
• Pin Count: 80
• Lead Free Status / RoHS Status: Compliant

NOTES
1
2
*Luma Manual Gain. Can be used program a desired manual chroma gain or read back the actual used gain value.
NOTES
1
2
*Chroma Manual Gain. Lower 8 bits, see LMG[11:8] for description.
NOTES
1
2
3
4
REV. 0
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
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 (10b).
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
Surveillance Gain Update Enable. Enables surveillance mode operation (see LMGS[11:0] for details).
Peak White Update. Determines the gain based on measurements taken from the active video; this bit determines the rate of gain change. LAGC[1:0] must be set to
Average Brightness Active Lines. Allows the selection between two ranges of active video to determine the average brightness.
Max IRE. Sets the max I/p IRE level depending on the video standard.
Color Kill Enable. Allows the optional color kill function to be switched on or off.
Bit Description
LMG[11:8]
RESERVED
LAGT[1:0]
LMG[11:0] will operate.
Bit Description Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register Setting
LMG[7:0]*
Bit Description Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register Setting
LMGS[11:8]
RESERVED
SGUE
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.
Bit Description Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register Setting
LMG[7:0]*
the appropriate mode to enable peak white or average video in the first case.
Bit Description
PW_UPD
AV_AL
MIRE[2:0]
RESERVED
CKE
RESERVED
4
2
2
1
2
3
1
1
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register Setting
0
0
1
1
X
0
1
X
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register Setting
1
0
1
0
1
X
1
X
0
1
Table XLIII. Manual Gain Shadow Control 2 Register (Subaddress 32)
Table XLII. Manual Gain Shadow Control 1 Register (Subaddress 31)
Table XLIV. Miscellaneous Gain Control Register (Subaddress 33)
X
1
X
1
1
Table XLI. Luma Gain Control 2 Register (Subaddress 30)
Table XL. Luma Gain Control 1 Register (Subaddress 2F)
1
X
1
X
0
0
0
0
1
1
1
1
X
X
X
X
0
0
1
1
0
0
1
1
X
X
X
X
0
1
0
1
0
1
0
1
X
X
X
X
0
1
–33–
X
X
X
X
0
1
Set to One
Slow (TC = 2 sec)
Medium (TC = 1 sec)
Fast (TC = 0.2 sec)
Dependent on VID_QUAL
Set to One
Disable LMGS Update
Use LMGS Update Facility
Update Gain Once per Line
Update Gain Once per Field
Lines 33 to 310
Lines 33 to 270
PAL-133 NTSC-122
PAL-125 NTSC-115
PAL-120 NTSC-110
PAL-115 NTSC-105
PAL-110 NTSC-100
PAL-105 NTSC-100
PAL-100 NTSC-100
PAL-100 NTSC-100
Set to One
Color Kill Disabled
Color Kill Enabled
Set to One
ADV7185