ISET Ex" />
參數(shù)資料
型號: LTC6992CS6-4#TRMPBF
廠商: Linear Technology
文件頁數(shù): 14/34頁
文件大?。?/td> 0K
描述: IC OSC SILICON 1MHZ TSOT23-6
產(chǎn)品培訓模塊: TimerBlox Family Timing Devices
產(chǎn)品目錄繪圖: LTC699_TSOT-23
特色產(chǎn)品: LTC?6992 TimerBlox?
TimerBlox?
標準包裝: 1
系列: TimerBlox®
類型: 振蕩器 - 硅
頻率: 3.81Hz ~ 1MHz
電源電壓: 2.25 V ~ 5.5 V
電流 - 電源: 365µA
工作溫度: 0°C ~ 70°C
封裝/外殼: SOT-23-6 細型,TSOT-23-6
包裝: 標準包裝
供應商設備封裝: TSOT-23-6
安裝類型: 表面貼裝
配用: DC1562A-C-ND - BOARD EVAL LTC6992-1
其它名稱: LTC6992CS6-4#TRMPBFDKR
LTC6992-1/LTC6992-2/
LTC6992-3/LTC6992-4
21
69921234fc
applicaTions inForMaTion
ISET Extremes (Master Oscillator Frequency Extremes)
When operating with ISET outside of the recommended
1.25μA to 20μA 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.Atapproximately500nA,theoscillatoroutput
will be frozen in its current state. The output could halt in
a high or low state. This avoids introducing short pulses
while frequency modulating a very low frequency output.
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.
Pulse Width Modulation Bandwidth and Settling Time
TheLTC6992hasawidePWMbandwith,makingitsuitable
for a variety of feedback applications. Figure 10 shows that
the frequency response is flat for modulation frequencies
up to nearly 1/10 of the output frequency. Beyond that
point, some peaking may occur (depending on NDIV and
average duty cycle setting).
Duty cycle settling time depends on the master oscillator
frequency. Following a ±80mV step change in VMOD, the
duty cycle takes approximately eight master clock cycles
(8 tMASTER) to settle to within 1% of the final value.
Examples are shown in Figures 11a and 11b.
Figure 10. PWM Frequency Response
Figure 11a. PWM Settling Time, 25% Duty Cycle
Figure 11b. PWM Settling Time, 50% Duty Cycle
fMOD/fOUT (Hz/Hz)
0.001
D(f
MOD
)/D(0Hz)
(dB)
10
5
–5
0
–10
–15
–20
0.01
6992 F10
1
0.1
÷1, 50%
÷1, 80%
÷16
÷4, 50%
÷4, 15%
VMOD
0.1V/DIV
OUT
2V/DIV
DUTY CYCLE
5% DIV
V+ = 3.3V
DIVCODE = 0
RSET = 200k
VMOD = 0.3V ±40mV
10s/DIV
6992 F11a
VMOD
0.1V/DIV
OUT
2V/DIV
DUTY CYCLE
5% DIV
V+ = 3.3V
DIVCODE = 0
RSET = 200k
VMOD = 0.5V ±40mV
10s/DIV
6992 F11b
相關PDF資料
PDF描述
M83723/78R10028 CONN PLUG 2POS STRAIGHT W/PINS
V110A28M300BF3 CONVERTER MOD DC/DC 28V 300W
V110A28M300BF2 CONVERTER MOD DC/DC 28V 300W
MAX1058BETM+ IC ADC/DAC 10BIT 48-TQFN-EP
V110A28M300BF CONVERTER MOD DC/DC 28V 300W
相關代理商/技術參數(shù)
參數(shù)描述
LTC6992CS6-4-TRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:TimerBlox Voltage-Controlled Pulse Width Modulator (PWM)
LTC6992HDCB-1#TRMPBF 功能描述:IC OSC SILICON 1MHZ 6-DFN RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 可編程計時器和振蕩器 系列:TimerBlox® 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:45 系列:- 類型:溫度 - 補償晶體振蕩器(TCXO) 計數(shù):- 頻率:25MHz 電源電壓:3.135 V ~ 3.465 V 電流 - 電源:1.5mA 工作溫度:-40°C ~ 85°C 封裝/外殼:16-SOIC(0.295",7.50mm 寬) 包裝:管件 供應商設備封裝:16-SOIC W 安裝類型:表面貼裝
LTC6992HDCB-1#TRPBF 功能描述:IC OSC SILICON 1MHZ 6-DFN RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 可編程計時器和振蕩器 系列:TimerBlox® 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:45 系列:- 類型:溫度 - 補償晶體振蕩器(TCXO) 計數(shù):- 頻率:25MHz 電源電壓:3.135 V ~ 3.465 V 電流 - 電源:1.5mA 工作溫度:-40°C ~ 85°C 封裝/外殼:16-SOIC(0.295",7.50mm 寬) 包裝:管件 供應商設備封裝:16-SOIC W 安裝類型:表面貼裝
LTC6992HDCB-2#TRMPBF 功能描述:IC OSC SILICON 1MHZ 6-DFN RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 可編程計時器和振蕩器 系列:TimerBlox® 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:45 系列:- 類型:溫度 - 補償晶體振蕩器(TCXO) 計數(shù):- 頻率:25MHz 電源電壓:3.135 V ~ 3.465 V 電流 - 電源:1.5mA 工作溫度:-40°C ~ 85°C 封裝/外殼:16-SOIC(0.295",7.50mm 寬) 包裝:管件 供應商設備封裝:16-SOIC W 安裝類型:表面貼裝
LTC6992HDCB-2#TRPBF 功能描述:IC OSC SILICON 1MHZ 6-DFN RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 可編程計時器和振蕩器 系列:TimerBlox® 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:45 系列:- 類型:溫度 - 補償晶體振蕩器(TCXO) 計數(shù):- 頻率:25MHz 電源電壓:3.135 V ~ 3.465 V 電流 - 電源:1.5mA 工作溫度:-40°C ~ 85°C 封裝/外殼:16-SOIC(0.295",7.50mm 寬) 包裝:管件 供應商設備封裝:16-SOIC W 安裝類型:表面貼裝