CY25818/19

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 7. CY25819 Spread Spectrum Profile

(Frequency vs. Time)[4]

Figure 6. CY25818 Spread Spectrum Profile

(Frequency vs. Time)[3]

Application Schematic

Vdd

C3

0.1 uF

7

C2

1

 

27 pF

14.3 MHz

XIN

Vdd

SSCLK

4

C3

 

 

 

 

or

 

 

 

 

27.0 MHz

 

 

 

 

8

27 pF

6

XOUTREFCLK

CY25818

CY25819

PD#

S0

Vss

2

14.3MHz (CY25818)

5 27.0 MHz (CY25819)

3

Figure 8. Typical Application Schematic

Notes:

3.XIN = 16.0 MHz; S0 = 1; SSCLK = 16.0 MHz; BW = –2.14%.

4.Xin = 32.0MHz; S0 = 1; SSCLK = 32.0 MHz; BW = -2.15%

Document #: 38-07362 Rev. *B

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Cypress CY25818, CY25819 manual Sscg Profiles, Application Schematic, Xin

CY25819, CY25818 specifications

Cypress Semiconductor, a renowned player in the embedded solutions market, has introduced two advanced clock generators: the CY25819 and CY25818. These devices stand out in the realm of high-performance clock management solutions, offering a variety of features that make them ideal for various applications such as telecommunications, consumer electronics, and computing systems.

The CY25819 and CY25818 utilize cutting-edge technology to provide users with exceptional flexibility and reliability. Both devices are designed to generate multiple clock outputs from a single reference clock input, which ultimately reduces component count and simplifies circuit design. This is especially valuable in modern electronic designs that prioritize space efficiency and power reduction.

One of the key features of the CY25819 is its ability to produce up to nine output clocks, while the CY25818 generates up to six. This capability allows designers to meet the diverse timing requirements of complex systems seamlessly. Additionally, both models support a wide range of output frequencies, which can be easily configured through I2C communication. This programmability ensures that designers can adapt the device to their specific needs, enhancing its versatility for different applications.

In terms of performance characteristics, both the CY25819 and CY25818 exhibit low phase noise and jitter, critical metrics for applications where timing precision is paramount. The low jitter performance is particularly important in high-speed data transfers and communication interfaces, as it helps maintain signal integrity and minimize errors.

Another notable feature includes power management capabilities. The CY25819 and CY25818 provide multiple power-saving modes, such as a low power sleep mode, which significantly reduces power consumption when the system is idle. This energy-efficient design is aligned with the growing demand for sustainable electronic solutions and extends battery life in portable applications.

Furthermore, these devices are built with robust engineering to ensure high reliability under various operating conditions. They offer a wide temperature range, making them suitable for industrial applications.

In summary, the Cypress CY25819 and CY25818 clock generators are exceptional solutions tailored for complex timing needs in a diverse array of industries. With their high output capabilities, superior performance, energy-efficient features, and reliability, they represent the forefront of clock management technology, enabling engineers to innovate and optimize their designs effectively.