STV2050A datasheet(46/83 Pages) STMICROELECTRONICS

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STV2050A - CONVERGENCE

9.1.1 Position Offset (also called “static”)

This value is added to each dynamic value of the corresponding channel. It is used to reach an

optimal dynamic value range, and to make a first rough correction.

E1 Register: Horizontal

E2 Register: Vertical

The Position offset values are in two’s complement.

9.1.2 Gain Correction

This gain value is applied to the sum of the dynamic value and the position offset (see Figure

26 "Convergence Values Computation Path" on page 45). It is mainly used for compensating

the amplification spread of the external components. (Also refer to Figure 31 "Electrical Loop

Block Diagram" on page 55).

The gain value is divided into 2 ranges, coarse and fine correction.

E0 Register: Coarse

D0 Register: Fine horizontal

D1 Register: Fine vertical

SRH[7:0]

Red Channel

SGH[7:0]

Green Channel

SBH[7:0]

Blue Channel

SRV[7:0]

Red Channel

SGV[7:0]

Green Channel

SBV[7:0]

Blue Channel

RCH[3:0]

Red horizontal

RCV[3:0]

Red vertical

GCH[3:0]

Green horizontal

GCV[3:0]

Green vertical

BCH[3:0]

Blue horizontal

BCV[3:0]

Blue vertical

RFH[7:0]

Red Channel

GFH[7:0]

Green Channel

BFH[7:0]

Blue Channel

RFV[7:0]

Red Channel

GFV[7:0]

Green Channel

BFV[7:0]

Blue Channel

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