saa7167ah NXP Semiconductors, saa7167ah Datasheet - Page 6

• Manufacturer Part Number: saa7167ah
• Description: Saa7167 Yuv-to-rgb Digital-to-analog Converter
• Manufacturer: NXP Semiconductors

Philips Semiconductors
FUNCTIONAL DESCRIPTION
The SAA7167AH 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 I
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.
R
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
2004 Jun 29
YUV0 (LSB)
YUV1
YUV2
YUV3
YUV4
YUV5
YUV6
YUV7 (MSB)
UV0 (LSB)
UV1
UV2
UV3
UV4
UV5
UV6
UV7 (MSB)
Y data
UV data
E
YUV-to-RGB digital-to-analog
converter
-
FORMATTER
INPUT
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
U0
U1
U2
U3
U4
U5
U6
U7
0
0
PIXEL BYTE SEQUENCE OF
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
V0
V1
V2
V3
V4
V5
V6
V7
1
0
U0
U1
U2
U3
U4
U5
U6
U7
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
4 : 2 : 2
2
2
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
V0
V1
V2
V3
V4
V5
V6
V7
3
2
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
U0
U1
U2
U3
U4
U5
U6
U7
4
4
2
C-bus
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
V0
V1
V2
V3
V4
V5
V6
V7
5
4
6
Table 2 Pixel byte sequence of 4 : 1 : 1
Table 3 Pixel byte sequence of 2 : 1 : 1
YUV0
YUV1
YUV2
YUV3
YUV4
YUV5
YUV6
YUV7
UV0
UV1
UV2
UV3
UV4
UV5
UV6
UV7
Y data
UV data
YUV0
YUV1
YUV2
YUV3
YUV4
YUV5
YUV6
YUV7
Y data
UV data
INPUT
INPUT
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
V6
V7
U6
U7
U0
U1
U2
U3
U4
U5
U6
U7
X
X
X
X
X
0
0
0
PIXEL BYTE SEQUENCE OF 4 : 1 : 1
PIXEL BYTE SEQUENCE OF 2 : 1 : 1
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
V4
V5
U4
U5
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
X
X
X
X
X
1
0
0
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
V2
V3
U2
U3
V0
V1
V2
V3
V4
V5
V6
V7
X
X
X
X
X
2
0
0
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
V0
V1
U0
U1
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
X
X
X
X
X
3
0
2
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
V6
V7
U6
U7
U0
U1
U2
U3
U4
U5
U6
U7
SAA7167AH
X
X
X
X
X
4
4
4
Product specification
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
V4
V5
U4
U5
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
X
X
X
X
X
5
4
4
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
V2
V3
U2
U3
V0
V1
V2
V3
V4
V5
V6
V7
X
X
X
X
X
6
4
4
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
V0
V1
U0
U1
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
X
X
X
X
X
7
4
6