ICS1531 Datasheet, PDF (48/76 Pages) Integrated Circuit Systems – Triple 8-bit MSPS A/D Converters with Line-Locked Clock Generator

ICS1531 Data Sheet - Preliminary
Chapter 6 Register Set
6.5.33 Register 31h: R_COARSE
The R_COARSE Register is the first adjustment for the red channel of the ADC. It is used to coarsely
adjust the analog signal used by the ADC. (See also Section 6.5.36, “Register 34h: R_FINE”.)
Table 6-32. R_COARSE Register
Bit Bit Name
Bit Definition
Ac- Spec. Re-
cess Func. set
31:7- Reserved
31:6
Reserved.
• See Section 6.1, “Reserved Bits”.
• These bits can be programmed to ‘0’.
–
–
0
31:5 Reserved
Reserved.
• See Section 6.1, “Reserved Bits”.
• This bit must be programmed to ‘1’.
–
–
1
31:4- Reserved
31:2
Reserved.
• See Section 6.1, “Reserved Bits”.
• These bits can be programmed to ‘0’.
–
–
0
31:1- R_Coarse_ADJ Red Coarse (Gain) Adjust [1-0].
R/W
–
0
31:0 [1-0]
These bits adjust the red channel of the ADC by adjusting the
gain of the video amplifier for the analog signal used by the
ADC.
• 0 = The gain is 1.0 (default).
• 1 = The gain is 1.2.
• 2 = The gain is 1.4 (typical).
• 3 = The gain is 1.6.
6.5.34 Register 32h: G_COARSE
The G_COARSE Register is the first adjustment for the green channel of the ADC. It is used to coarsely
adjust the analog signal used by the ADC. (See also Section 6.5.37, “Register 35h: G_FINE”.)
Table 6-33. G_COARSE Register
Bit Bit Name
Bit Definition
Ac- Spec. Re-
cess Func. set
32:7- Reserved
32:6
Reserved.
• See Section 6.1, “Reserved Bits”.
• These bits can be programmed to ‘0’.
–
–
0
32:5 Reserved
Reserved.
• See Section 6.1, “Reserved Bits”.
• This bit must be programmed to ‘1’.
–
–
1
32:4- Reserved
32:2
Reserved.
• See Section 6.1, “Reserved Bits”.
• These bits can be programmed to ‘0’.
–
–
0
32:1- G_Coarse_ADJ Green Coarse (Gain) Adjust [1-0].
R/W
–
0
32:0 [1-0]
These bits adjust the green channel of the ADC by adjusting
the gain of the video amplifier for the analog signal used by the
ADC.
• 0 = The gain is 1.0 (default).
• 1 = The gain is 1.2.
• 2 = The gain is 1.4 (typical).
• 3 = The gain is 1.6.
ICS1531 Rev N 12/1/99
Copyright © 1999, Integrated Circuit Systems, Inc.
All rights reserved.
48
December, 1999