參數資料
型號: SAA7199BWP
廠商: NXP SEMICONDUCTORS
元件分類: 顏色信號轉換
英文描述: Digital Video Encoder DENC GENLOCK-capable
中文描述: COLOR SIGNAL ENCODER, PQCC84
封裝: PLASTIC, SOT-189-2, LCC-84
文件頁數: 22/40頁
文件大?。?/td> 188K
代理商: SAA7199BWP
1996 Sep 27
22
Philips Semiconductors
Product specification
Digital Video Encoder (DENC)
GENLOCK-capable
SAA7199B
C
HROMINANCE FILTERING IN THE ENCODER
1.
2.
Decimation for 4 : 4 : 4 format input data (formats 4, 5 and 7; Fig.4).
Interpolation for 4 : 1 : 1 input data into 4 : 2 : 2 data, also suitable to reduce the bandwidth of 4 : 2 : 2 data. This filter
is controlled by the SCBW-bit (SCWB = 1 means active).
Interpolation at 13.5 MHz for 4 : 2 : 2 input data into 4 : 4 : 4 data before modulating baseband signals onto the
colour subcarrier. Figures 5, 6 and 7 show the overall transfer characteristics of chrominance in “standard bandwidth
condition” (SCBW = 1). Figures 8 and 9 show the overall transfer characteristics of chrominance in enhanced
bandwidth condition (SCBW = 0), which is not possible for 4 : 1 : 1 input data. The transfer curves are slightly
different at 12.27 and 14.75 MHz.
3.
Fig.4
Transfer characteristics of
4 : 4 : 4 to 4 : 2 : 2 decimator.
handbook, halfpage
(dB)
MEH346
0
0
10
20
30
40
50
f / fCLK
0.2
0.4
0.6
0.8
Fig.5
Overall transfer characteristics 4 : 1 : 1
input data.
handbook, halfpage
(dB)
MEH347
0
2
4
6
8
0
10
20
30
40
50
f (MHz)
相關PDF資料
PDF描述
SAA7199B ; Capacitance:1uF; Capacitance Tolerance:+/- 10 %; Working Voltage, DC:100V; Terminal Type:Axial Leaded; Series:430P; Dielectric Material:Metalized Polyester; Mounting Type:Through Hole; Operating Temp. Max:85 C
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