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參數(shù)資料
| 型號： | LTC6902CMS |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | XO, clock |
| 英文描述： | Multiphase Oscillator with Spread Spectrum Frequency Modulation |
| 中文描述： | PLL FREQUENCY SYNTHESIZER, PDSO10 |
| 封裝： | PLASTIC, MSOP-10 |
| 文件頁數(shù)： | 15/16頁 |
| 文件大小： | 212K |
| 代理商： | LTC6902CMS |
LTC6902
15
6902f
Figure 7. Start-Up Time
TIME AFTER POWER APPLIED (
μ
s)
0
F
20
30
40
600
400k
1000
69012 F07
10
0
–10
200
400
800
50
60
70
63.2k
20k
T
A
= 25
°
C
V
+
= 5V
POWER SUPPLY SENSITIVITY
Figure 6 shows the output frequency sensitivity to power
supply voltage at several different temperatures. The
LTC6902 has a guaranteed voltage coefficient of 0.1%/V
but, as Figure 6 shows, the typical supply sensitivity is
twice as low.
START-UP TIME
The start-up time and settling time to within 1% of the final
value can be estimated by t
START
R
SET
(3.7
μ
s/k
) +
10
μ
s. Note the start-up time depends on R
SET
and is
independent from the setting of the divider pin. For in-
stance with R
SET
= 100k, the LTC6902 will settle with 1%
of its 200kHz final value (N = 10) in approximately 380
μ
s.
Figure 7 shows start-up times for various R
SET
resistors.
Jitter
The Peak-to-Peak Jitter vs Output Frequency graph, in the
Typical Performance Characteristics section, shows the
typical clock jitter as a function of oscillator frequency and
power supply voltage. The capacitance from the SET pin,
(Pin 3), to ground must be less than 10pF. If this require-
ment is not met, the jitter will increase.
APPLICATIOU
W
U
U
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
Figure 6. Supply Sensitivity
SUPPLY VOLTAGE (V)
2.5
–0.05
F
0
0.05
0.10
0.15
3.0
3.5
4.0
4.5
69012 F06
5.0
5.5
85
°
C
–40
°
C
25
°
C
R
= 63.2k
PIN 4 = FLOATING (
÷
10)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC6902CMS#PBF | 功能描述:IC OSC SILICON 20MHZ 10MSOP 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:- 標準包裝:3,000 系列:- 類型:振蕩器 - 晶體 計數(shù):- 頻率:- 電源電壓:2.3 V ~ 5.5 V 電流 - 電源:1.07mA 工作溫度:-30°C ~ 80°C 封裝/外殼:SOT-665 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:SS迷你型-5D 安裝類型:表面貼裝 其它名稱:AN8955SSMTXLTR |
| LTC6902CMS#PBF | 制造商:Linear Technology 功能描述:Programmable Oscillator IC |
| LTC6902CMS#TR | 功能描述:IC OSC SILICON 20MHZ 10MSOP RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 可編程計時器和振蕩器 系列:- 產(chǎn)品培訓(xùn)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(yīng)商設(shè)備封裝:16-SOIC W 安裝類型:表面貼裝 |
| LTC6902CMS#TRPBF | 功能描述:IC OSC SILICON 20MHZ 10MSOP 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:- 產(chǎn)品培訓(xùn)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(yīng)商設(shè)備封裝:16-SOIC W 安裝類型:表面貼裝 |
| LTC6902CMSPBF | 制造商:Linear Technology 功能描述:Programmable oscillator,5K-20MHz |
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