No. 17S142-00
STC-HD853HDMI
Product specifications and User’s guide
69/81
The formula for exposure time:
The formula for exposure time is changed based on selection of “Resolution / Frame rate” [0x060].
2160p 60fps / 2160p 59.94fps
Exposure time [msec.] = ((4,500 – SHR) x 266 + 112) / (71.82 x 1,000)
2160p 50fps
Exposure time [msec.] = ((4,500 – SHR) x 320 + 112) / (72.00 x 1,000)
2160p 30fps / 29.97fps
Exposure time [msec.] = ((4,500 – SHR) x 532 + 112) / (71.82 x 1,000)
2160p 25fps
Exposure time [msec.] = ((4,500 – SHR) x 640 + 112) / (72.00 x 1,000)
* 2160p resolution, SHR = exposure time setting x 6 + 12.
1080p 60fps / 1080p 59.94fps
Exposure time [msec.] = ((2,250 – SHR) x 532 + 169) / (71.82 x 1,000)
1080p 50fps
Exposure time [msec.] = ((2,250 – SHR) x 640 + 169) / (72.00 x 1,000)
1080p 120fps / 119.88fps
Exposure time [msec.] = ((2,250 – SHR) x 266 + 112) / (71.82 x 1,000)
1080p 100fps
Exposure time [msec.] = ((2,250 – SHR) x 320 + 112) / (72.00 x 1,000)
* 1080p resolution, SHR = exposure time setting x 3 + 8
Address
7
6
5
4
3
2
1
0
Descriptions
Default
010
X
X
X
X
X
X
X
X
Gain [little-endian]
*
011
0
0
0
0
0
0
0
X
Range: 0 to 392
012
X
X
X
X
X
X
X
X
Minimum gain for AGC control [little-endian]
0
013
0
0
0
0
0
0
0
X
Range: 0 to 392
014
X
X
X
X
X
X
X
X
Middle gain for AGC control [little-endian]
200
015
0
0
0
0
0
0
0
X
Range: 0 to 392
016
X
X
X
X
X
X
X
X
Maximum gain for AGC control [little-endian]
392
017
0
0
0
0
0
0
0
X
Range: 0 to 392
018
X
X
X
X
X
X
X
X
AGC tolerance
AGC stops when difference between “current brightness” and “ALC target level” is
smaller than this value.
3
019
X
X
X
X
X
X
X
X
AGC threshold
AGC starts when difference between “current brightness” and “ALC target level” is
greater than “AEE control tol AEE control threshold”.
6
01A
0
0
X
X
X
X
X
X
AGC control speed
Sets the maximum amount of gain change for AGC control.
(There is no limitation for maximum amount of gain when sets “0”)
0
01B –
01F
X
X
X
X
X
X
X
X
Reserved
-
The formula for gain:
Gain [dB] = - 20 x log ((2,048 – PGC) / 2,048)
PGC = Gain setting x 5
(When Gain setting is 392, PGC = 1,957)
