cy25560 Cypress Semiconductor Corporation., cy25560 Datasheet - Page 4

• Manufacturer Part Number: cy25560
• Description: Spread Spectrum Clock Generator
• Manufacturer: Cypress Semiconductor Corporation.

Document #: 38-07425 Rev. *D
CY25560 Application Schematic
The schematic in Figure 3 above demonstrates how the
CY25560 is configured in a typical application. This application
is shown as using a 30-MHz fundamental crystal. In most
applications an external reference clock is used. Apply the
Device
CY25560
Example:
Then;
Device =
Fin
Range =
Modulation Rate = Fmod = 65 MHz/1166 = 55.7 kHz.
Modulation Profile
27 pF
27 pF
C 2
C 3
V D D
=
Figure 2. SSCG Clock, CY25560, Fin = 65 MHz
30 M H z
Y 1
Cdiv
1166
CY25560
65 MHz
S1 = 1, S0 = 0
1
8
5
Figure 3. Application Schematic
X IN /C LK
X O U T
S S C C
(All Ranges)
C Y 25560
V D D
V S S
3
2
external clock signal at Xin (pin 1) and leave Xout (pin 8)
unconnected.
Contact Cypress if higher-order crystal is to be used.
C 3
S S C LK
Spectrum Analyzer
S 0
S 1
0.1 uF
7
4
6
V D D
CY25560
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