參數(shù)資料
型號(hào)： SAA6713H
廠(chǎng)商： NXP Semiconductors N.V.
英文描述： XGA dual input flat panel controller
中文描述： 雙輸入的XGA液晶控制器
文件頁(yè)數(shù)： 60/103頁(yè)
文件大?。?/td> 521K
代理商： SAA6713H
2004 Apr 05
60
Philips Semiconductors
Product specification
XGA dual input flat panel controller
SAA6713H
7.11.3.4
Phase distortion measurement
To help adjusting the phase for the ADCs, the SAA6713H
has a built-in phase distortion measurement which is
calculating a 30-bit indicator value of a defined area of the
video signal (see Table 37). The area for phase distortion
measurements may contain active video or blanking. The
area is defined by applying the upper left and lower right
corner of the area to ref_col_0, ref_row_0 and ref_col_1,
ref_row_1 respectively. Assuming a stable input picture
with different pixel values inside the measurement
window, the phase adjustment can be done by shifting the
ADC phases and reading out the phase distortion indicator
value of bits eval_row_0 and eval_col_0 for the maximum
distortion value and eval_row_1 and eval_col_1 for the
minimum distortion value. The best sampling phase
corresponds to the highest value of the phase distortion
indicator.
This phase distortion value could also be used for the
frequency adjustment by sweeping the input frequency
around the assumed target frequency.
When auto-adjustment is in phase distortion mode, a
signature is calculated for each frame. Changes inside the
input stream can be detected by reading the signature bits
ref_pixel_blue_0, ref_pixel_red_1, ref_pixel_green_1 and
ref_pixel_blue_1. For still pictures, the signature does not
change.
Table 37
Mode 11 (phase distortion measurement)
BIT
DESCRIPTION
Input values
aa_submode[1:0]
aa_cycles[1:0]
not used
measurement interval
00: 1 frame
01: 4 frames
10: 8 frames
11: 16 frames
measurement area upper left corner column
measurement area upper left corner row
measurement area lower right corner column
measurement area lower right corner row
ref_col_0[10:0]
ref_row_0[11:0]
ref_col_1[10:0]
ref_row_1[11:0]
Output values
eval_col_0[15:0]
eval_row_0[15:0]
eval_col_1[15:0]
eval_row_1[15:0]
ref_pixel_blue_0[5:0]
ref_pixel_red_1[7:0]
ref_pixel_green_1[7:0] signature[15:8]
ref_pixel_blue_1[7:0]
maximum of distortion[15:0]
maximum of distortion[29:16]
minimum of distortion[15:0]
minimum of distortion[29:16]
signature[29:24]
signature[23:16]
signature[7:0]
相關(guān)PDF資料
PDF描述
SAA7110 Digital Multistandard Colour Decoder(數(shù)字多標(biāo)準(zhǔn)彩色譯碼器)
SAA7111 Video Input Processor VIP
SAA7120H Digital video encoder
SAA7152 Digital Video Comb Filter DCF
SAA7184 Digital Video Encoders DENC2-M6
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA6713H/V1 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:XGA dual input flat panel controller
SAA6721 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:SXGA RGB to TFT graphics engine
SAA6721E 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:SXGA RGB to TFT graphics engine
SAA6750 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Encoder for MPEG2 image recording EMPIRE
SAA6750H 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Encoder for MPEG2 image recording EMPIRE
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