參數(shù)資料
型號(hào): NCP1522
廠商: ON SEMICONDUCTOR
元件分類: DC/DC變換器
英文描述: High Efficiency DC-DC Converters
中文描述: 高效率DC - DC轉(zhuǎn)換器
文件頁(yè)數(shù): 17/20頁(yè)
文件大?。?/td> 1886K
代理商: NCP1522
Page 17
ON Semiconductor
Achieve Lower EMI with Spread-Spectrum Clock Synthesizers
EMI Clock Synthesizers
Device
NB669A
NB760A
NB76A
NB769A
NB869A
NB969A
NB579A
NB779A
NB870A
NB87A
NB879A
NB780A
fin
(MHz)
6 - 1
6 - 1
6 - 1
6 - 1
6 - 1
6 - 1
1 - 0
1 - 0
1 - 0
15 - 0
15 - 0
0 - 50
Accepts
Crystal
Input
N
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Accepts
Reference
Input
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Power
Down
Y
Y
Y
Y
N
N
N
Y
N
N
N
Y
Spread
Spectrum
Enable/Disable
N
N
N
N
N
N
Y
N
N
N
N
N
Modulation
Rate
Equation
f
in
÷ 56
f
in
÷ 56
f
in
÷ 56
f
in
÷ 56
f
in
÷ 56
f
in
÷ 56
f
in
÷ 60
f
in
÷ 60
f
in
÷ 60
f
in
÷ 60
f
in
÷ 60
f
in
÷ 180
Output
Frequency
Deviation
±1%
±0.75%
-1.5%
±1%
±1%
±1%
±1%
±1%
±0.75%
-1.5%
±1%
±0.75%
Reference
Output
N
N
N
N
Y
Y, ÷
N
N
Y
Y
Y
N
Key Performance Characteristics
Replace ferrite beads and chokes
Reduce peak EMI by 6 – 6 dBm
Power Down mode reduces current draw to μA
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