參數(shù)資料
型號: KS0119
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: Multimedia Video(帶傳統(tǒng)RAM-DAC功能的NTSC編碼器)
中文描述: 多媒體視頻(帶傳統(tǒng)的RAM - DAC的功能的NTSC制式編碼器)
文件頁數(shù): 23/47頁
文件大?。?/td> 311K
代理商: KS0119
KS0119 Data Sheet
MULTIMEDIA VIDEO
ELECTRONICS
PAGE 23 OF 50
070595
7. DAC AND EXTERNAL RECONSTRUCTION FILTER
The three DACs on the chip are identical; they are video grade 10 bit current DACs. Figure 14 shows a typical
configuration for the DAC portion of the chip. R
REF
is connected to IREF
to adjust the DAC output full scale. The
DAC output is designed to drive a doubly terminated 75
load. A 105
resistor connected to R
REF
can be used to
set the output voltage peak to the RS-170A standard of 1 V. The built-in voltage reference has a large variation due
to manufacturing technology limitations. For precise control of the DAC, an external voltage reference can be used.
A variable resistor may also be used for R
REF
to adjust the full scale DAC output current. The recommended analog
filter circuit and its characteristic are shown in Figure 15 and Figure 16, respectively.
Figure 14. DAC Reference Circuit and Termination
Figure 15. DAC Output Analog Reconstruction Filter
Figure 16. DAC Output Analog Reconstruction Filter Response
DAC
+
-
1.2V
C
COMP
C
VREF
Analog Power Plane
Analog Ground Plane
AKY
VREF
IREF
GIN
G/Y
R
REF
KS0119
To 75
Display
1.235V
R
BIAS
Only one DAC output is shown
with the optional 1.235V
external voltage reference and
R
BIAS
LPF
75
100pF
2.0
μ
H
1.3
μ
H
300pF
100pF
Frequency (Mhz)
A
相關PDF資料
PDF描述
KS0122 MULTISTANDARD VIDEO DECODER
KS0123 DIGITAL VIDEO ENCODER
KS0125 Multi-standard Video Encoder(多標準視頻編碼器)
KS0164 Multimedia Audio(波表合成芯片)
KS0165 Multimedia Audio(波表合成芯片)
相關代理商/技術參數(shù)
參數(shù)描述
KS0122 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MULTISTANDARD VIDEO DECODER
KS0123 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:DIGITAL VIDEO ENCODER
KS0127 制造商:Samsung SDI 功能描述:Digital video encoder & decoder
KS0127B 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:MULTISTANDARD VIDEO DECODER/SCALER
KS-01Q-01 功能描述:SWITCH PUSH SPST-NO 0.01A 35V RoHS:是 類別:開關 >> 按鈕 系列:KS, LAMB 標準包裝:1 系列:A16 類型:標準,發(fā)光式 電路:雙刀雙擲 開關功能:開-瞬時 額定電流:5A(AC) 額定電壓 - AC:125V 額定電壓 - DC:- 觸動器類型:方形,按鈕 顏色 - 致動器/蓋:黃 發(fā)光類型,顏色:LED,黃 發(fā)光電壓:12 VDC 安裝類型:前面板安裝 端接類型:焊接,快速連接 - 0.110"(2.8mm) 防護等級:IP65 - 防塵/防油/防水 特點:- 面板切口尺寸:圓形 - 直徑 16.00mm 包裝:散裝 工作溫度:-10°C ~ 55°C 機械壽命:2,000,000 次循環(huán) 電氣壽命:100,000 次循環(huán) 其它名稱:A165LAYM12D2