THC7984_15 Datasheet, PDF (10/46 Pages) THine Electronics, Inc. – 10-bit 3-channel Video Signal Digitizer

THC7984_Rev.2.0_E
Register Map
Address
Bit
R/W
Default
Value
Fun ctio n
R 00 7 R
0 Revision Code
6R
0
5R
1
4R
0
3R
0
2R
0
1R
0
0R
1
R 01 7
6
5
4 R/W 0 Chip Power-On
3 R/W 0 Auto Output Enable (All outputs become Enable when input signal is active)
2 R/W 0 Output Enable (Except SOGOUT & IRQ)
1 R/W 0 SOGOUT Output Enable
0 R/W 0 Reserved
R 02 7
6 R/W 0 Oversampling
5 R/W 0
4 R/W 0 PLL Divider Ratio
3 R/W 0
2 R/W 1
1 R/W 1
0 R/W 0
R 03 7 R/W 1
6 R/W 0
5 R/W 0
4 R/W 1
3 R/W 1
2 R/W 0
1 R/W 0
0 R/W 0
R 04 7 R/W 1 Reserved
6 R/W 1 VCO Frequency Range
5 R/W 1
4 R/W 1 Charge Pump Current
3 R/W 0
2 R/W 0
1 R/W 0 Sampling Clock Source
0 R/W 0
R 05 7
6
5 R/W 0 Sampling Clock Phase
4 R/W 0
3 R/W 0
2 R/W 0
1 R/W 0
0 R/W 0
R 06 7
6
5
4
3
2 R/W 1 R-ch Gain
1 R/W 0
0 R/W 0
R 07 7 R/W 0
6 R/W 0
5 R/W 0
4 R/W 0
3 R/W 0
2 R/W 0
1 R/W 0
0 R/W 0
Can be read 21h
Descri ption
0: Power-Down (Stand-by Mode) 1: Power-On (Normal Operation)
0: Disable 1: Enable
0: Disable 1: Enable
0: Disable 1: Enable
Must be set to 0 (Default Value)
00b: 1x(Normal Operation) 01b: 2x 10b: 4x 11b: 8x
Set the number of horizontal total pixels per line
Must be set to 1 (Default Value)
00b: 1/8 01b: 1/4 10b: 1/2 11b: 1/1
000b: 50uA 001b: 100uA 010b: 150uA 011b: 250uA
100b: 350uA 101b: 500uA 110b: 750uA 111b: 1000uA
00b: Internal Clock 01b: Reserved
10b: External Clock (10-20MHz) 11b: External Clock (20-170MHz)
Set in 64 steps of T/64
*Bigger values mean more delay.
Gain = (Register Value + 1024) / 2048
2048 steps from x0.5 to x1.5
*Bigger values mean higher gain.
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