- 您現在的位置：買賣IC網 > PDF目錄16696 > SC-KIT-TBX (Linear Technology)TIMERBLOX SAMPLE KIT PDF資料下載
參數資料
| 型號： | SC-KIT-TBX |
| 廠商： | Linear Technology |
| 文件頁數： | 4/30頁 |
| 文件大?。?/td> | 0K |
| 描述： | TIMERBLOX SAMPLE KIT |
| 設計資源： | TimerBlox Designer |
| 特色產品： | TimerBlox? |
| 標準包裝： | 1 |
| 系列： | TimerBlox® |
| 主要目的： | 計時，時鐘振蕩器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | LTC6990，LTC6991，LTC6992-1，LTC6993-2，LTC6994-1 |
| 已供物品： | 裸板，樣品 IC |
第1頁第2頁第3頁當前第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁
LTC6990
12
6990fc
For more information www.linear.com/LTC6990
OPERATION
is not stable, it will increase the start-up time as the con-
verter waits for a stable result. Therefore, capacitance on
the DIV pin should be minimized so it will settle quickly.
Less than 100pF will not affect performance.
Output Enable
The OE pin controls the state of the LTC6990’s output as
seen on the OUT pin. Pulling the OE pin high enables the
oscillator output. Pulling it low disables the output. When
the output is disabled, it is either held low or placed in
a high impedance state as dictated by the Hi-Z bit value
(determined by the DIVCODE as described earlier). Table 2
summarizes the output control states.
Table 2. Output States
OE Pin
Hi-Z
OUT
1
X
Enabled, Output is Active
0
1
Disabled, Output is Hi-Z
0
Disabled, Output is Held Low
Figure 3 illustrates the timing for the OE function when
Hi-Z = 0. When OE is low, the output is disabled and OUT
is held low. Bringing OE high enables the output after a
delay, tENABLE, which synchronizes the enable to eliminate
sliver pulses and guarantee the correct width for the first
pulse. If NDIV = 1 or 2 this delay will be no longer than
the output period, tOUT. If NDIV > 2 the delay is limited to
twice the internal master oscillator period (or 2 tMASTER).
Forcing OE low will bring OUT low after a propagation
delay, tPD. If the output is high when OE falls, the output
pulse will be truncated.
As shown in Figure 4, setting Hi-Z = 1 places the output in
a high-impedance state when OE = 0. This feature allows
for“wired-OR”connectionsofmultipledevices.DrivingOE
high enables the output. The output will usually be forced
low during this time, although it is possible for OUT to
transition directly from high-impedance to a high output,
depending on the timing of the OE transition relative to
the internal oscillator. Once high, the first output pulse
will have the correct width (unless truncated by bringing
OE low again).
Figure 3. OE Timing Diagram (Hi-Z = 0)
6990 F03
OE
OUT
tPD
tENABLE
tOUT
Figure 4. OE Timing Diagram (Hi-Z = 1)
6990 F04
OE
OUT
tPD
tENABLE
tOUT
Hi-Z
相關PDF資料 |
PDF描述 |
|---|---|
| ELC-09D822DF | COIL CHOKE 8200UH RADIAL |
| GMC08DRAH | CONN EDGECARD 16POS R/A .100 SLD |
| 214A042-100/180-0 | BOOT MOLDED |
| ELC-09D682DF | COIL CHOKE 6800UH RADIAL |
| RCC12DRTN-S734 | CONN EDGECARD 24POS DIP .100 SLD |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SCKR1J | 制造商:Vishay Dale 功能描述:S* C K U1 J E - Waffle Pack |
| SCKR1J0325 | 制造商:Vishay Dale 功能描述:S* C K U1 J R0325 E - Waffle Pack |
| SCKV100K3 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:STANDARD RECOVERY HIGH VOLTAGE RECTIFIER ASSEMBLY |
| SCKV12K30 | 制造商:Semtech Corporation 功能描述:A 1PHHW 2A STD 12KV |
| SCKV12K40 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:STANDARD RECOVERY HIGH VOLTAGE RECTIFIER ASSEMBLY |
發(fā)布緊急采購，3分鐘左右您將得到回復。