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コンピュータ・ハードウェア Cypress Semiconductor CY25819のPDF 仕様書をオンラインで閲覧またはダウンロードできます。Cypress Semiconductor CY25819 7 ページ。 Cypress spread spectrum clock generator specification sheet
ページを印刷するSSCG Profiles
CY25818/19 SSCG products use a non-linear "optimized"
frequency profile as shown in Figure 6 and Figure 7. The use
of Cypress proprietary "optimized" frequency profile maintains
flat energy distribution over the fundamental and higher order
harmonics. This results in additional EMI reduction in
electronic systems.
Figure 6. CY25818 Spread Spectrum Profile
(Frequency vs. Time)
Application Schematic
C2
27 pF
C3
27 pF
Notes:
3. X
= 16.0 MHz; S0 = 1; SSCLK = 16.0 MHz; BW = –2.14%.
IN
4. Xin = 32.0MHz; S0 = 1; SSCLK = 32.0 MHz; BW = -2.15%
Document #: 38-07362 Rev. *B
[3]
7
Vdd
1
XIN
14.3 MHz
or
27.0 MHz
8
XOUT
CY25818
CY25819
6
PD#
Vss
2
Figure 8. Typical Application Schematic
Figure 7. CY25819 Spread Spectrum Profile
(Frequency vs. Time)
Vdd
C3
0.1 uF
4
SSCLK
14.3 MHz (CY25818)
5
27.0 MHz (CY25819)
REFCLK
3
S0
CY25818/19
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