參數(shù)資料
型號(hào)： SAA8117HL
廠商： NXP SEMICONDUCTORS
元件分類： 消費(fèi)家電
英文描述： REFLECTIVE PHOTOSENSOR SMD
中文描述： SPECIALTY CONSUMER CIRCUIT, PQFP100
封裝： 14 X 14 MM, 1.40 MM HEIGHT, PLASTIC, SOT-407-1, LQFP-100
文件頁(yè)數(shù)： 34/60頁(yè)
文件大?。?/td> 231K
代理商： SAA8117HL
1999 Apr 02
34
Philips Semiconductors
Product specification
Digital camera USB interface IC
SAA8117HL
Table 3
Detailed description of SNERT register CONTROL17_0 (address 0xC2)
Table 4
Detailed description of bit 2 and bit 1 of SNERT register CONTROL17_0
Note
1.
Only valid when a VGA sensor is applied. The VGA output is not compressed.
7
6
5
4
3
2
1
0
PARAMETER
EIRRAH
exchanges the chrominance irregularities when needed; toggle the bit to ensure
timing of chrominance signal; the value must be determined experimentally (can
be different for different modes)
Snapshot
transported in 4 : 2 : 2 format
transported in 4 : 2 : 0 format
Inband_Control
in band synchronization words are inserted in the video data stream
only active video data is transmitted over USB
Compression_Ratio
ratio is 4 times
ratio is 3 times
Compress
compression is active; only to be used in case (for this register) bit 2 = 1 and
bit 1 = 0 since compression functions are for CIF only; CIF format must be
compressed unless the frame rate is 3.75 Hz
compression module is switched off and power consumption is minimized for this
module
Output_Format_Select
see Table 4
PAL_VGA
PAL sensor
VGA sensor
X
1
0
1
0
1
0
1
0
X
X
1
0
2
1
OUTPUT_FORMAT_SELECT
PARAMETER
FRAME RATE WITH RESPECT TO OUTPUT FORMAT
0
0
1
1
0
1
0
1
sub-QCIF
QCIF
CIF
VGA; note 1
24
24
20
20
15
15
15
12
12
12
10
10
10
7.5
7.5
7.5
5
5
5
3.75
3.75
3.75
0.9375
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