Cypress CY25822-2 manual Ordering Information, Signal Loading Table Clock Name Max Load pF

Page 7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CY25822-2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 7. AC Parameters (TA = 0°C to +70°C, VDD = 3.3V ± 5%) (continued)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Parameter

 

Description

 

 

Conditions

Min.

 

Max.

Unit

Notes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tFALLL1

 

Falling Edge Rate

 

 

 

Measured from 2.4V to 0.4V

1.33

4.0

V/ns

Low Buffer Strength

 

 

 

 

 

 

 

 

REFOUT and CLOCKOUT

 

 

 

 

Refer to I2C Control

tRISEH2

 

Rise Time

 

 

 

Measured from 0.4V to 2.4V

0.4

1.0

ns

High Buffer Strength

 

 

 

 

 

 

 

 

REFOUT and CLOCKOUT

 

 

 

 

Refer to I2C Control

tFALLH2

 

Fall Time

 

 

 

Measured from 2.4V to 0.4V

0.4

1.0

ns

High Buffer Strength

 

 

 

 

 

 

 

 

REFOUT and CLOCKOUT

 

 

 

 

Refer to I2C Control

tRISEL2

 

Rise Time

 

 

 

Measured from 0.4V to 2.4V

0.5

1.5

ns

Low Buffer Strength

 

 

 

 

 

 

 

 

REFOUT and CLOCKOUT

 

 

 

 

Refer to I2C Control

tFALLL2

 

Fall Time

 

 

 

Measured from 2.4V to 0.4V

0.5

1.5

ns

Low Buffer Strength

 

 

 

 

 

 

 

 

REFOUT and CLOCKOUT

 

 

 

 

Refer to I2C Control

TCYC1

 

Cycle to Cycle Jitter

 

 

REFOUT

500

ps

SSCG is ON

TCYC2

 

Cycle to Cycle Jitter

 

 

CLOCKOUT

250

ps

SSCG is ON

LTJ

 

10S Period Jitter

 

 

 

Applies to REFOUT at all

2.0

ns

 

 

(100KHz, Frequency Mod-

times and CLOCKOUT when

 

 

 

 

 

 

 

 

ulation Amplitude)

 

 

 

SSCG is Off

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tSTART

 

Start up time

 

 

 

From VDD = 2.0 V

3.0

ms

All outputs disabled

Table 8. Signal Loading Table

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Clock Name

 

 

Max Load (pF)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CLKOUT, REFOUT

 

 

 

15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ordering Information

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Part Number

 

 

 

Package Type

 

 

 

Product Flow

 

 

 

 

 

 

 

CY25822SC–2

 

 

8-pin SOIC

 

 

Commercial, 0°C to 70°C

 

 

 

 

 

 

 

CY25822SC–2T

 

 

8-pin SOIC – Tape and Reel

 

 

Commercial, 0°C to 70°C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Document #: 38-07531 Rev. **

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Contents 2 5 8 2 2 FeaturesBlock Diagram Pin ConfigurationSerial Data Interface Pin DescriptionData Protocol Spread Spectrum Select Spread Mode Spread Amount%Block Read and Block Write Protocol Byte 0 Control Register Bit @Pup Pin# Name Pin DescriptionBytes 2 through 5 Reserved Registers PWRDWN# Power-down ClarificationByte 1 Control Register Bit @Pup Pin# Name Pin Description Power-down Assertion Clkout and Refout Enable ClarificationDescription Conditions Min Max Unit Parameter Description Condition Min Max UnitOrdering Information Signal Loading Table Clock Name Max Load pFPart Number Package Type Product Flow Lead 150-Mil Soic S8 Package DiagramDocument History New Data SheetDate Change Description of Change 124462

CY25822-2 specifications

The Cypress CY25822-2 is a highly versatile clock generator and clock distribution device designed for use in high-performance applications. As part of Cypress's extensive portfolio of timing solutions, the CY25822-2 takes center stage in delivering precise clock signals for system synchronization and performance enhancement.

One of the standout features of the CY25822-2 is its ability to generate multiple output clocks from a single input source. This functionality is particularly beneficial in applications where multiple components or subsystems require synchronized clock signals, allowing designers to simplify their designs and reduce component count.

The CY25822-2 supports a wide input frequency range, accommodating various system clock sources while maintaining low jitter performance. This characteristic is critical in high-speed digital applications, where timing precision is paramount. With its ability to minimize phase noise and jitter, the CY25822-2 ensures reliable data transmission and system stability.

Another notable aspect of the CY25822-2 is its programmable features. The device can be configured through a simple interface, allowing designers to customize the output frequencies and clock characteristics according to their specific application needs. This programmability enhances flexibility, enabling the CY25822-2 to be used in diverse environments, from consumer electronics to automotive systems.

The CY25822-2 utilizes advanced phase-locked loop (PLL) technology to achieve high-performance clock generation. The PLL feature allows it to multiply input frequencies and generate higher frequency outputs while maintaining excellent signal integrity. This capability is crucial for modern high-speed data applications, including networking, telecommunications, and high-definition video processing.

In terms of power efficiency, the CY25822-2 is designed to operate with low power consumption, making it suitable for battery-operated devices and energy-sensitive applications. The reduced power footprint contributes to prolonged battery life and better overall system performance.

Moreover, the CY25822-2 package options cater to various design requirements, offering flexibility for integration into a range of PCB layouts. Its small footprint suits compact devices, while its robust operation ensures reliability across different environmental conditions.

In conclusion, the Cypress CY25822-2 stands out as a reliable and advanced clock generator solution, integrating essential features such as multiple outputs, low jitter performance, programmability, and power efficiency. Its adoption across various high-performance applications underscores its importance in the modern electronics landscape.