STV3550 datasheet(25/144 Pages) STMICROELECTRONICS

25 / 144 page

STV3550

25/144

3.3.1

Main Features

●

Horizontal resizing using a Sample Rate Converter based on an 8-tap, 32-phase polyphase

filter with a programmable factor from 0.25 to 4.

●

Vertical resizing using a Sample Rate Converter based on a 4-tap, 32-phase polyphase filter

with a programmable factor from 0.5 to 4.

●

Non-linear horizontal and vertical format conversion with up to 5 programmable segments.

●

Horizontal video output resolution adjustable between 360 and 1920 active pixels per line by

using a programmable pixel clock frequency.

●

Vertical video output resolution adjustable between 240 and 1080 active lines per field.

●

Field parity interpolation by controlling the phase offset in the vertical polyphase filter.

●

Programmable Pan and Scan video positioning.

●

Color Edge Replacement for Color Transient Improvement (CTI).

●

Horizontal and Vertical Luma Peaking.

●

Contrast Enhancement: Black, Grey, and White Stretch.

●

4:2:2 to 4:4:4 Chroma Up-sampling

●

10-bit RGB output

3.3.2

Horizontal and Vertical Rescaling

The rescaling function is performed by two 32-phase polyphase filters (Horizontal and Vertical), of

which all coefficients are stored in a programmable table. In this case, if needed, the transfer

function of the filter can be optimized by referring to a specific up-conversion process. This scaling

Figure 9: Zoom Rescaling Diagram

16:9 TV Screen

VZoom Factor

Linear Zone

Constant

Zone 1

Zone 2

Zone 3

Zone 4

Zone 5

STV3550 数据表(PDF) 25 Page - STMicroelectronics

STV3550 数据表(HTML) 25 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载