AD9380SLASHPCB datasheet(46/60 Pages) AD

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AD9380

Rev. 0 | Page 46 of 60

COLOR SPACE CONVERSION

The default power up values for the color space converter

coefficients (R0x35 through R0x4C) are set for ATSC RGB to

YCbCr conversion. They are completely programmable for

other conversions.

0x34—Bit[1] Color Space Converter Enable

This bit enables the color space converter. 0 = disable color

space converter. 1 = enable color space converter. The power-up

default setting is 0.

0x35—Bits[6:5] Color Space Converter Mode

These two bits set the fixed-point position of the CSC

coefficients, including the A4, B4, and C4 offsets.

Table 23. CSC Fixed Point Converter Mode

Select

Result

±1.0, −4096 to +4095

±2.0, −8192 to +8190

1×

±4.0, −16384 to +16380

0x35—Bits[4:0] Color Space Conversion Coefficient A1

MSBs

These 5 bits form the 5 MSBs of the Color Space Conversion

Coefficient A1. This combined with the 8 LSBs of the following

user programmable. The equation takes the form of:

ROUT = (A1 × RIN) + (A2 × GIN) + (A3 × BIN) + A4

GOUT = (B1 × RIN) + (B2 × GIN) + (B3 × BIN) + B4

BOUT = (C1 × RIN) + (C2 × GIN) + (C3 × BIN) + C4

The default value for the 13-bit A1 coefficient is 0x0C52.

0x36—Bits[7:0] Color Space Conversion Coefficient A1

LSBs

See the Register 0x35 section.

0x37—Bits[4:0] CSC A2 MSBs

These five bits form the 5 MSBs of the Color Space Conversion

Coefficient A2. Combined with the 8 LSBs of the following

user programmable. The equation takes the form of:

ROUT = (A1 × RIN) + (A2 × GIN) + (A3 × BIN) + A4

GOUT = (B1 × RIN) + (B2 × GIN) + (B3 × BIN) + B4

BOUT = (C1 × RIN) + (C2 × GIN) + (C3 × BIN) + C4

The default value for the 13-bit A2 coefficient is 0x0800.

0x38—Bits[7:0] CSC A2 LSBs

See the Register 0x37 section.

0x39—Bits[4:0] CSC A3 MSBs

The default value for the 13-bit A3 is 0x0000.

0x3A—Bits[7:0] CSC A3 LSBs

0x3B—Bits[4:0] CSC A4 MSBs

The default value for the 13-bit A4 is 0x19D7.

0x3C—Bits[7:0] CSC A4 LSBs

0x3D—Bits[4:0] CSC B1 MSBs

The default value for the 13-bit B1 is 0x1C54.

0x3E—Bits[7:0] CSC B1 LSBs

0x3F—Bits[4:0] CSC B2 MSB

The default value for the 13-bit B2 is 0x0800.

0x40—Bits[7:0] CSC B2 LSBs

0x41—Bits[4:0] CSC B3 MSBs

The default value for the 13-bit B3 is 0x1E89.

0x42—Bits[7:0] CSC B3 LSBs

0x43—Bits[4:0] CSC B4 MSBs

The default value for the 13-bit B4 is 0x0291.

0x44—Bits[7:0] CSC B4 LSBs

0x45—Bits[4:0] CSC C1 MSBs

The default value for the 13-bit C1 is 0x0000.

0x46—Bits[7:0] CSC C1 LSBs

0x47—Bits[4:0] CSC C2 MSBs

The default value for the 13 bit C2 is 0x0800.

0x48—Bits[7:0] CSC C2 LSBs

0x49—Bits[4:0] CSC C3 MSBs

The default value for the 13-bit C3 is 0x0E87.

0x4A—Bits[7:0] CSC C3 LSBs

0x4B—Bits[4-0] CSC C4 MSBs

The default value for the 13-bit C4 is 0x18BD.

0x4C—Bits[7:0] CSC C4 LSBs

0x57—Bit[7] A/V Mute Override

0x57—Bit[6] A/V Mute Value

0x57—Bit[3] Disable AV Mute

0x57—Bit[2] Disable Audio Mute

0x58—Bit[7] MCLK PLL Enable

This bit enables the use of the analog PLL.

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