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參數(shù)資料
| 型號： | 935219380551 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | PLASTIC, SOT-313-2, LQFP-48 |
| 文件頁數(shù)： | 19/22頁 |
| 文件大?。?/td> | 178K |
| 代理商： | 935219380551 |
1995 Nov 03
6
Philips Semiconductors
Preliminary specication
YUV-to-RGB Digital-to-Analog
Converter (DAC)
SAA7167
FUNCTIONAL DESCRIPTION
The SAA7167 contains a video data path, 3 analog mixers
and voltage output amplifiers for the RGB channels
respectively, a keying control block as well as an I2C-bus
control block.
Video data path
The video data path includes a video data re-formatter, a
YUV-to-RGB colour space conversion matrix, and triple
8-bit DACs.
RE-FORMATTER
The re-formatter de-multiplexes the different video formats
YUV 4 :1:1, 4:2:2 or 2:1:1 to internal YUV 4 : 4 : 4,
which can then be processed by the RGB matrix. The pixel
byte sequences of those video input formats are shown in
Tables 1 to 4.
Table 1
Pixel byte sequence of 4 :2:2
INPUT
PIXEL BYTE SEQUENCE OF
4:2:2
YUV0 (LSB)
Y0
YUV1
Y1
YUV2
Y2
YUV3
Y3
YUV4
Y4
YUV5
Y5
YUV6
Y6
YUV7 (MSB)
Y7
UV0 (LSB)
U0
V0
U0
V0
U0
V0
UV1
U1
V1
U1
V1
U1
V1
UV2
U2
V2
U2
V2
U2
V2
UV3
U3
V3
U3
V3
U3
V3
UV4
U4
V4
U4
V4
U4
V4
UV5
U5
V5
U5
V5
U5
V5
UV6
U6
V6
U6
V6
U6
V6
UV7 (MSB)
U7
V7
U7
V7
U7
V7
Y data
012345
UV data
024
Table 2
Pixel byte sequence of 4:1:1
Table 3
Pixel byte sequence of 2:1:1
INPUT
PIXEL BYTE SEQUENCE OF 4:1:1
YUV0
Y0
YUV1
Y1
YUV2
Y2
YUV3
Y3
YUV4
Y4
YUV5
Y5
YUV6
Y6
YUV7
Y7
UV0
XXXXXXXX
UV1
XXXXXXXX
UV2
XXXXXXXX
UV3
XXXXXXXX
UV4
V6
V4
V2
V0
V6
V4
V2
V0
UV5
V7
V5
V3
V1
V7
V5
V3
V1
UV6
U6
U4
U2
U0
U6
U4
U2
U0
UV7
U7
U5
U3
U1
U7
U5
U3
U1
Y data
01234567
UV data
04
INPUT
PIXEL BYTE SEQUENCE OF 2:1:1
YUV0
U0
Y0
V0
Y0
U0
Y0
V0
Y0
YUV1
U1
Y1
V1
Y1
U1
Y1
V1
Y1
YUV2
U2
Y2
V2
Y2
U2
Y2
V2
Y2
YUV3
U3
Y3
V3
Y3
U3
Y3
V3
Y3
YUV4
U4
Y4
V4
Y4
U4
Y4
V4
Y4
YUV5
U5
Y5
V5
Y5
U5
Y5
V5
Y5
YUV6
U6
Y6
V6
Y6
U6
Y6
V6
Y6
YUV7
U7
Y7
V7
Y7
U7
Y7
V7
Y7
Y data
X0X2X4X6
UV data
0X0X4X4X
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