欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數資料
型號: DC1620A-G
廠商: Linear Technology
文件頁數: 18/38頁
文件大小: 0K
描述: BOARD DEMO 125MSPS LTC2145-14
軟件下載: QuikEval II System
設計資源: DC1620A Design Files
DC1620A Schematic
標準包裝: 1
系列: *
相關產品: DC890B-ND - BOARD USB DATA COLLECTION
25
21454314fa
LTC2145-14/
LTC2144-14/LTC2143-14
APPLICATIONS INFORMATION
Phase Shifting the Output Clock
In full rate CMOS mode the data output bits normally
change at the same time as the falling edge of CLKOUT+,
so the rising edge of CLKOUT+ can be used to latch the
output data. In double data rate CMOS and LVDS modes
the data output bits normally change at the same time as
the falling and rising edges of CLKOUT+. To allow adequate
set-up and hold time when latching the data, the CLKOUT+
signal may need to be phase shifted relative to the data
output bits. Most FPGAs have this feature; this is generally
the best place to adjust the timing.
The LTC2145-14/LTC2144-14/LTC2143-14 can also phase
shift the CLKOUT+/CLKOUTsignals by serially program-
ming mode control register A2. The output clock can be
shifted by 0°, 45°, 90°, or 135°. To use the phase shift-
ing feature the clock duty cycle stabilizer must be turned
on. Another control register bit can invert the polarity of
CLKOUT+ and CLKOUT, independently of the phase shift.
The combination of these two features enables phase shifts
of 45° up to 315° (Figure 14).
DATA FORMAT
Table 1 shows the relationship between the analog input
voltage, the digital data output bits and the overflow bit.
By default the output data format is offset binary. The 2’s
complement format can be selected by serially program-
ming mode control register A4.
Table 1. Output Codes vs Input Voltage
AIN+ – AIN–
(2V Range)
OF
D13-D0
(OFFSET BINARY)
D13-D0
(2’s COMPLEMENT)
>1.000000V
+0.999878V
+0.999756V
1
0
11 1111 1111 1111
11 1111 1111 1110
01 1111 1111 1111
01 1111 1111 1110
+0.000122V
+0.000000V
–0.000122V
–0.000244V
0
10 0000 0000 0001
10 0000 0000 0000
01 1111 1111 1111
01 1111 1111 1110
00 0000 0000 0001
00 0000 0000 0000
11 1111 1111 1111
11 1111 1111 1110
–0.999878V
–1.000000V
≤–1.000000V
0
1
00 0000 0000 0001
00 0000 0000 0000
10 0000 0000 0001
10 0000 0000 0000
CLKOUT+
D0-D13, OF
PHASE
SHIFT
45°
90°
135°
180°
225°
270°
315°
CLKINV
0
1
CLKPHASE1
MODE CONTROL BITS
0
1
0
1
CLKPHASE0
0
1
0
1
0
1
0
1
21454314 F14
ENC+
Figure 14. Phase Shifting CLKOUT
相關PDF資料
PDF描述
32 LAMP INCAND T-1 12V SUB MIDGET
8-2417T T-1 12V .100" BI-PIN BASE
7355 LAMP INCAND T1-3/4 MIDGE GROOVE
A0215Y 30MM IND CTRL PB OPERATOR
DC1370A-L BOARD DEMO 25MSPS LTC2256-12
相關代理商/技術參數
參數描述
DC1620A-H 功能描述:BOARD DEMO 105MSPS LTC2144-14 RoHS:是 類別:未定義的類別 >> 其它 系列:* 標準包裝:1 系列:* 其它名稱:MS305720A
DC1620A-I 功能描述:BOARD DEMO 80MSPS LTC2143-14 RoHS:是 類別:未定義的類別 >> 其它 系列:* 標準包裝:1 系列:* 其它名稱:MS305720A
DC1620A-J 功能描述:BOARD DEMO 65MSPS LTC2142-14 RoHS:是 類別:未定義的類別 >> 其它 系列:* 標準包裝:1 系列:* 其它名稱:MS305720A
DC1620A-K 功能描述:BOARD DEMO 40MSPS LTC2141-14 RoHS:是 類別:未定義的類別 >> 其它 系列:* 標準包裝:1 系列:* 其它名稱:MS305720A
DC1620A-L 功能描述:BOARD DEMO 25MSPS LTC2140-14 RoHS:是 類別:未定義的類別 >> 其它 系列:* 標準包裝:1 系列:* 其它名稱:MS305720A
主站蜘蛛池模板: 比如县| 毕节市| 鄂伦春自治旗| 靖远县| 兴化市| 大方县| 建阳市| 康马县| 常德市| 霞浦县| 隆林| 阳山县| 泰宁县| 绥阳县| 长治县| 苍溪县| 东丰县| 毕节市| 盘山县| 来宾市| 东光县| 临武县| 开阳县| 毕节市| 西安市| 芒康县| 景洪市| 元阳县| 黔江区| 南乐县| 宝丰县| 鄂伦春自治旗| 察隅县| 济阳县| 勃利县| 长阳| 福贡县| 延寿县| 莎车县| 阳江市| 崇礼县|