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参数资料
| 型号： | DC1562A-J |
| 厂商： | Linear Technology |
| 文件页数： | 2/26页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL LTC6993-4 |
| 设计资源： | DC1562A Design Files DC1562A Schematic |
| 特色产品： | TimerBlox? |
| 标准包装： | 1 |
| 系列： | TimerBlox® |
| 主要目的： | 定时，单稳多谐振荡器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | LTC6993-4 |
| 主要属性： | 下降沿触发器，可再触发 |
| 次要属性： | 2.25 V ~ 5.5 V 电源 |
| 已供物品： | 板 |
LTC6993-1/LTC6993-2
LTC6993-3/LTC6993-4
10
69931234fb
PIN FUNCTIONS (DCB/S6)
V+ (Pin 1/Pin 5): Supply Voltage (2.25V to 5.5V). This sup-
ply should be kept free from noise and ripple. It should be
bypassed directly to the GND pin with a 0.1F capacitor.
DIV (Pin 2/Pin 4): Programmable Divider and Polarity
Input. The DIV pin voltage (VDIV) is internally converted
into a 4-bit result (DIVCODE). VDIV may be generated by
a resistor divider between V+ and GND. Use 1% resistors
to ensure an accurate result. The DIV pin and resistors
should be shielded from the OUT pin or any other traces
that have fast edges. Limit the capacitance on the DIV pin
to less than 100pF so that VDIV settles quickly. The MSB of
DIVCODE (POL) determines the polarity of the OUT pins.
When POL = 0 the output produces a positive pulse. When
POL = 1 the output produces a negative pulse.
SET (Pin 3/Pin 3): Pulse Width Setting Input. The voltage
on the SET pin (VSET) is regulated to 1V above GND. The
amount of current sourced from the SET pin (ISET) pro-
grams the master oscillator frequency. The ISET current
range is 1.25A to 20A. The output pulse will continue
indefinitely if ISET drops below approximately 500nA,
and will terminate when ISET increases again. A resistor
connected between SET and GND is the most accurate
way to set the pulse width. For best performance, use
a precision metal or thin film resistor of 0.5% or better
tolerance and 50ppm/°C or better temperature coefficient.
For lower accuracy applications an inexpensive 1% thick
film resistor may be used.
Limit the capacitance on the SET pin to less than 10pF
to minimize jitter and ensure stability. Capacitance less
than 100pF maintains the stability of the feedback circuit
regulating the VSET voltage.
TRIG (Pin 4/Pin 1): Trigger Input. Depending on the ver-
sion, a rising or falling edge on TRIG will initiate the output
pulse. LTC6993-1 and LTC6993-2 are rising-edge sensi-
tive.LTC6993-3andLTC6993-4arefalling-edgesensitive.
TheLTC6993-2andLTC6993-4areretriggerable,allowing
thepulsewidthtobeextendedbyadditionaltriggersignals
that occur while the output is active. The LTC6993-1/
LTC6993-3 will ignore additional trigger inputs until the
output pulse has terminated.
GND (Pin 5/Pin 2): Ground. Tie to a low inductance ground
plane for best performance.
OUT (Pin 6/Pin 6): Output. The OUT pin swings from
GND to V+ with an output resistance of approximately
30Ω. When driving an LED or other low impedance load
a series output resistor should be used to limit source/
sink current to 20mA.
69931234 PF
LTC6993
TRIG
GND
SET
OUT
V+
DIV
C1
0.1F
RSET
R2
R1
V+
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DC1562A-K | 功能描述:BOARD EVAL LTC6994-1 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:TimerBlox® 标准包装:1 系列:- 主要目的:电信，线路接口单元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要属性:T1/J1/E1 LIU 次要属性:- 已供物品:板，电源，线缆，CD 其它名称:82EBV2081 |
| DC1562A-L | 功能描述:BOARD EVAL LTC6994-2 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:TimerBlox® 标准包装:1 系列:- 主要目的:电信，线路接口单元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要属性:T1/J1/E1 LIU 次要属性:- 已供物品:板，电源，线缆，CD 其它名称:82EBV2081 |
| DC1562B-B | 制造商:Linear Technology 功能描述:LTC6991 DEMO BOARD 1Hz (1s) Fixed Frequenc |
| DC1562B-C | 制造商:Linear Technology 功能描述:LTC6992-1 DEMO BOARD 10kHz, 0 100% Duty Cycle |
| DC1562B-E | 制造商:Linear Technology 功能描述:BOARD EVAL LTC6992-3 制造商:Linear Technology 功能描述:DEMO BOARD LTC6992-3 VOLTAGE CONTROLLED 制造商:Linear Technology 功能描述:DEMO BOARD, LTC6992-3 VOLTAGE CONTROLLED 制造商:Linear Technology 功能描述:DEMO BOARD, LTC6992-3 VOLTAGE CONTROLLED OSC, Silicon Manufacturer:Linear Technology, Silicon Core Number:LTC6992-3, Kit Application Type:Clock & Timing, Application Sub Type:Voltage Controlled Oscillator |
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