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參數資料
| 型號： | DC1562A-B |
| 廠商： | Linear Technology |
| 文件頁數： | 1/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL LTC6991 |
| 設計資源： | DC1562A Design Files DC1562A Schematic |
| 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： | LTC6991 |
| 主要屬性： | 1Hz 固定頻率 |
| 次要屬性： | 2.25 V ~ 5.5 V 電源 |
| 已供物品： | 板 |
| 相關產品： | LTC6991MPS6#TRPBF-ND - IC OSCILLATOR RESET LF TSOT23-6 LTC6991MPS6#TRMPBF-ND - IC OSCILLATOR RESET LF TSOT23-6 LTC6991IS6#TRPBF-ND - IC OSC SILICON 977HZ TSOT23-6 LTC6991IDCB#TRPBF-ND - IC OSC SILICON 977HZ 6-DFN LTC6991IDCB#TRMPBF-ND - IC OSC SILICON 977HZ 6-DFN LTC6991HS6#TRPBF-ND - IC OSC SILICON 977HZ TSOT23-6 LTC6991HDCB#TRPBF-ND - IC OSC SILICON 977HZ 6-DFN LTC6991HDCB#TRMPBF-ND - IC OSC SILICON 977HZ 6-DFN LTC6991CS6#TRPBF-ND - IC OSC SILICON 977HZ TSOT23-6 LTC6991CDCB#TRPBF-ND - IC OSC SILICON 977HZ 6-DFN 更多... |
LTC6991
1
6991fb
TYPICAL APPLICATION
FEATURES
DESCRIPTION
TimerBlox: Resettable, Low
Frequency Oscillator
The LTC6991 is a silicon oscillator with a programmable
period range of 1.024ms to 9.54 hours (29.1μHz to 977Hz),
specifically intended for long duration timing events. The
LTC6991 is part of the TimerBlox family of versatile silicon
timing devices.
A single resistor, RSET, programs the LTC6991’s internal
master oscillator frequency. The output clock period
is determined by this master oscillator and an internal
frequency divider, NDIV, programmable to eight settings
from 1 to 221.
tOUT =
NDIV RSET
50k
Ω
1.024ms, NDIV = 1,8,64,...,221
In normal operation, the LTC6991 oscillates with a 50%
duty cycle. A reset function is provided to truncate the
pulse (reducing the duty cycle). The reset pin can also be
used to prevent the output from oscillating.
The RST and OUT pins can be configured for active-low
or active-high operation using a polarity function.
POL BIT
RST PIN
OUTPUT STATE
0
Oscillating
0
1
0 (reset)
1
0
1 (reset)
1
Oscillating
For easy configuration of the LTC6991, download the
TimerBlox Designer tool at www.linear.com/timerblox.
APPLICATIONS
n Period Range: 1ms to 9.5 Hours
n Configured with 1 to 3 Resistors
n <1.5% Maximum Frequency Error
n Output Reset Function
n 2.25V to 5.5V Single Supply Operation
n 55μA to 80μA Supply Current
(2ms to 9.5hr Clock Period)
n 500μs Start-Up Time
n CMOS Output Driver Sources/Sinks 20mA
n –55°C to 125°C Operating Temperature Range
n Available in Low Profile (1mm) SOT-23 (ThinSOT)
and 2mm × 3mm DFN Packages
n “Heartbeat” Timers
n Watchdog Timers
n Intervalometers
n Periodic “Wake-Up” Call
n High Vibration, High Acceleration Environments
n Portable and Battery-Powered Equipment
L, LT, LTC, LTM, Linear Technology, TimerBlox and the Linear logo are registered trademarks
and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
Low Frequency Pulse Generator
Clock Period Range over Eight Divider Settings
DIV PIN VOLTAGE, VDIV (V)
0
CLOCK
PERIOD
(LOG
SCALE)
10Sec
10Min
2.5
6991 TA01b
100ms
1ms
0.625
1.25
1.875
10Hr
1Sec
1Min
10ms
1Hr
LTC6991
5V
0.1μF
OUT
R1
1M
R2
392k
RSET
715k
RST
GND
SET
OUT
V+
DIV
CPW
470pF
RPW
2.26k
6991 TA01a
60 SECONDS
1μs PULSE WIDTH
tPULSE ≈ RPW
PW ≈ 1μs
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相關代理商/技術參數 |
參數描述 |
|---|---|
| DC1562A-C | 功能描述:BOARD EVAL LTC6992-1 RoHS:是 類別:編程器，開發系統 >> 評估演示板和套件 系列:TimerBlox® 標準包裝:1 系列:- 主要目的:數字電位器 嵌入式:- 已用 IC / 零件:AD5258 主要屬性:- 次要屬性:- 已供物品:板 相關產品:AD5258BRMZ1-ND - IC POT DGTL I2C1K 64P 10MSOPAD5258BRMZ10-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ100-ND - IC POT DGTL I2C 100K 64P 10MSOPAD5258BRMZ50-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ1-R7-ND - IC POT DGTL I2C 1K 64P 10MSOPAD5258BRMZ10-R7-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ50-R7-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ100-R7-ND - IC POT DGTL I2C 100K 64P 10MSOP |
| DC1562A-D | 功能描述:BOARD EVAL LTC6992-2 RoHS:是 類別:編程器，開發系統 >> 評估演示板和套件 系列:TimerBlox® 標準包裝:1 系列:- 主要目的:數字電位器 嵌入式:- 已用 IC / 零件:AD5258 主要屬性:- 次要屬性:- 已供物品:板 相關產品:AD5258BRMZ1-ND - IC POT DGTL I2C1K 64P 10MSOPAD5258BRMZ10-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ100-ND - IC POT DGTL I2C 100K 64P 10MSOPAD5258BRMZ50-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ1-R7-ND - IC POT DGTL I2C 1K 64P 10MSOPAD5258BRMZ10-R7-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ50-R7-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ100-R7-ND - IC POT DGTL I2C 100K 64P 10MSOP |
| DC1562A-E | 功能描述:BOARD EVAL LTC6992-3 RoHS:是 類別:編程器，開發系統 >> 評估演示板和套件 系列:TimerBlox® 標準包裝:1 系列:- 主要目的:數字電位器 嵌入式:- 已用 IC / 零件:AD5258 主要屬性:- 次要屬性:- 已供物品:板 相關產品:AD5258BRMZ1-ND - IC POT DGTL I2C1K 64P 10MSOPAD5258BRMZ10-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ100-ND - IC POT DGTL I2C 100K 64P 10MSOPAD5258BRMZ50-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ1-R7-ND - IC POT DGTL I2C 1K 64P 10MSOPAD5258BRMZ10-R7-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ50-R7-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ100-R7-ND - IC POT DGTL I2C 100K 64P 10MSOP |
| DC1562A-F | 功能描述:BOARD EVAL LTC6992-4 RoHS:是 類別:編程器，開發系統 >> 評估演示板和套件 系列:TimerBlox® 標準包裝:1 系列:- 主要目的:電信，線路接口單元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要屬性:T1/J1/E1 LIU 次要屬性:- 已供物品:板，電源，線纜，CD 其它名稱:82EBV2081 |
| DC1562A-G | 功能描述:BOARD EVAL LTC6993-1 RoHS:是 類別:編程器，開發系統 >> 評估演示板和套件 系列:TimerBlox® 標準包裝:1 系列:- 主要目的:數字電位器 嵌入式:- 已用 IC / 零件:AD5258 主要屬性:- 次要屬性:- 已供物品:板 相關產品:AD5258BRMZ1-ND - IC POT DGTL I2C1K 64P 10MSOPAD5258BRMZ10-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ100-ND - IC POT DGTL I2C 100K 64P 10MSOPAD5258BRMZ50-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ1-R7-ND - IC POT DGTL I2C 1K 64P 10MSOPAD5258BRMZ10-R7-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ50-R7-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ100-R7-ND - IC POT DGTL I2C 100K 64P 10MSOP |
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