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參數(shù)資料
| 型號： | LTC6994IS6-1#TRPBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 9/26頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DELAY LINE TSOT-23-6 |
| 產品培訓模塊： | TimerBlox Family Timing Devices |
| 特色產品： | TimerBlox? |
| 標準包裝： | 2,500 |
| 系列： | TimerBlox® |
| 功能： | 可編程 |
| 可用的總延遲： | 1µs ~ 33.6s |
| 獨立延遲數(shù)： | 1 |
| 電源電壓： | 2.25 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | SOT-23-6 細型，TSOT-23-6 |
| 供應商設備封裝： | TSOT-23-6 |
| 包裝： | 帶卷 (TR) |
| 配用： | DC1562A-E-ND - BOARD EVAL LTC6992-3 |
LTC6994-1/LTC6994-2
17
699412fb
applicaTions inForMaTion
Voltage-Controlled Delay
With one additional resistor, the LTC6994 output delay
can be manipulated by an external voltage. As shown in
Figure 10, voltage VCTRL sources/sinks a current through
RMOD to vary the ISET current, which in turn modulates
the delay as described in Equation (3):
tDELAY =
NDIV RMOD
50k
1s
1
+
RMOD
RSET
–
VCTRL
VSET
(3)
Digital Delay Control
The control voltage can be generated by a DAC (digital-to-
analog converter), resulting in a digitally-controlled delay.
Many DACs allow for the use of an external reference. If
such a DAC is used to provide the VCTRL voltage, the VSET
dependency can be eliminated by buffering VSETandusing
it as the DAC’s reference voltage, as shown in Figure 11.
The DAC’s output voltage now tracks any VSET variation
and eliminates it as an error source. The SET pin cannot be
tied directly to the reference input of the DAC because the
currentdrawnbytheDAC’sREFinputwouldaffectthedelay.
ISET Extremes (Master Oscillator Frequency Extremes)
When operating with ISET outside of the recommended
1.25A to 20A range, the master oscillator operates
outside of the 62.5kHz to 1MHz range in which it is most
accurate.
The oscillator will still function with reduced accuracy for
ISET < 1.25A. At approximately 500nA, the oscillator will
stop. Under this condition, the delay timing can still be
initiated, but will not terminate until ISET increases and
the master oscillator starts again.
At the other extreme, it is not recommended to operate
the master oscillator beyond 2MHz because the accuracy
of the DIV pin ADC will suffer.
LTC6994
IN
GND
SET
OUT
V+
DIV
R1
C1
0.1F
699412 F10
V+
R2
RSET
RMOD
VCTRL
699412 F11
LTC6994
IN
GND
SET
OUT
V+
DIV
C1
0.1F
R1
R2
V+
RMOD
RSET
–
+
V+
1/2
LTC6078
LTC1659
V+
0.1F
VCC
REF
GND
VOUT
P
DIN
CLK
CS/LD
NDIV RMOD
50k
tDELAY =
DIN = 0 TO 4095
–
1+
RMOD
RSET
DIN
4096
1s
0.1F
Figure 10. Voltage-Controlled Delay
Figure 11. Digitally Controlled Delay
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LTC6994IS6-2#PBF | 制造商:Linear Technology 功能描述:Programmable Delay Block 6-Pin TSOT-23 制造商:Linear Technology 功能描述:SC-Timing, Cut Tape Delay with Rising and Falling Edge Trigger |
| LTC6994IS6-2#TRM | 制造商:Linear Technology 功能描述:Programmable Delay Block 6-Pin TSOT-23 T/R |
| LTC6994IS6-2#TRMPBF | 功能描述:IC DELAY LINE TSOT-23-6 RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 延遲線 系列:TimerBlox® 標準包裝:2,500 系列:- 標片/步級數(shù):- 功能:多個，不可編程 延遲到第一抽頭:10ns 接頭增量:- 可用的總延遲:10ns 獨立延遲數(shù):4 電源電壓:4.75 V ~ 5.25 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:14-SOIC 包裝:帶卷 (TR) |
| LTC6994IS6-2#TRPBF | 功能描述:IC DELAY LINE TSOT-23-6 RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 延遲線 系列:TimerBlox® 標準包裝:2,500 系列:- 標片/步級數(shù):- 功能:多個，不可編程 延遲到第一抽頭:10ns 接頭增量:- 可用的總延遲:10ns 獨立延遲數(shù):4 電源電壓:4.75 V ~ 5.25 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:14-SOIC 包裝:帶卷 (TR) |
| LTC6994IS6-2TRMPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:TimerBlox: Delay Block/ Debouncer |
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