Cypress CY25822-2 manual Parameter Description Condition Min Max Unit

Page 6

CY25822-2

Table 5. Absolute Maximum Ratings

Parameter

Description

Condition

Min.

 

Max.

Unit

 

 

 

 

 

 

 

VDD

Core Supply Voltage

 

–0.5

 

4.6

V

VDD_A

Analog Supply Voltage

 

–0.5

 

4.6

V

VIN

Input Voltage

Relative to V SS

–0.5

 

VDD + 0.5

VDC

TS

Temperature, Storage

Non Functional

–65

 

+150

°C

TA

Temperature, Operating Ambient

Functional

0

 

70

°C

TJ

Temperature, Junction

Functional

 

150

°C

ESDHBM

ESD Protection (Human Body Model)

MIL-STD-883, Method 3015

2000

 

Volts

UL–94

Flammability Rating

@1/8 in.

 

V–0

 

 

 

 

 

 

 

MSL

Moisture Sensitivity Level

 

 

1

 

 

 

 

 

 

 

 

Table 6. DC Parameters (TA = 0°C to +70°C, VDD = 3.3V ± 5%)

Parameter

 

Description

 

Condition

Min.

 

 

 

Max

 

Unit

 

Notes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VDD

Supply Voltage

 

3.135

 

 

3.465

 

V

VDD = 3.3 ± 5%

VIH

Input High Voltage

 

2.0

 

 

VDD + 0.3

 

V

 

 

VIL

Input Low Voltage

 

VSS – 0.3

 

0.8

 

V

 

 

IIL1

Input Leakage Current

 

SCLOCK

–25

 

 

+25

 

A

 

 

 

 

 

 

or SDATA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IIL2

Input Leakage Current

 

PWRDWN#

–75

 

 

 

–15

 

A

 

 

VOH

Output High Voltage

 

IOH = –4 mA

2.4

 

 

 

 

V

Single edge is required to

 

 

 

 

 

 

 

 

 

 

 

 

 

be monotonic when transi-

 

 

 

 

 

 

 

 

 

 

 

 

 

tioning through this region.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VOL

Output Low Voltage

 

IOL = 4 mA

 

 

0.4

 

V

Single edge is required to

 

 

 

 

 

 

 

 

 

 

 

 

 

be monotonic when transi-

 

 

 

 

 

 

 

 

 

 

 

 

 

tioning through this region.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CIN

Input Pin Capacitance

 

 

 

5

 

pF

 

 

COUT

Output Pin Capacitance

 

 

 

6

 

pF

 

 

LIN

Pin Inductance

 

 

 

7

 

nH

 

 

TA

Ambient Temperature

 

0

 

 

70

 

°C

No air flow

IDD1

Supply Current

 

@ 66 MHz

 

 

50

 

mA

 

 

IDD2

Supply Current

 

@ 48 MHz

 

 

40

 

mA

 

 

IPD

Power Down Supply Current

 

 

 

500

 

A

 

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Parameter

 

Description

 

Conditions

 

 

Min.

 

Max.

 

Unit

 

Notes

 

 

 

 

 

 

 

 

 

 

 

 

 

tHIGH

 

CLK High Time, 48MHz

Measured @2.4V

 

 

9.45

 

10.95

 

ns

 

Specification applies to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

48MHz output mode.

 

 

 

 

 

 

 

 

 

 

 

 

 

tLOW

 

CLK, Low Time, 48MHz

Measured @0.4V

 

 

8.50

 

10.10

 

ns

 

Specification applies to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

48MHz output mode.

 

 

 

 

 

 

 

 

 

 

 

 

 

tHIGH

 

CLK High Time, 66MHz

Measured @2.4V

 

 

6.85

 

7.90

 

ns

 

Specification applies to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

66.7MHz output mode.

 

 

 

 

 

 

 

 

 

 

 

 

 

tLOW

 

CLK Low Time, 66MHz

Measured @0.4V

 

 

5.95

 

6.95

 

ns

 

Specification applies to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

66.7MHz output mode.

 

 

 

 

 

 

 

 

 

 

 

 

tRISEH1

 

Rising Edge Rate

Measured from 0.4V to 2.4V

 

2.0

 

5.0

 

V/ns

 

High Buffer Strength

 

 

 

REFOUT and CLOCKOUT

 

 

 

 

 

 

 

 

Refer to I2C Control

tFALLH1

 

Falling Edge Rate

Measured from 2.4V to 0.4V

 

2.0

 

5.0

 

V/ns

 

High Buffer Strength

 

 

 

REFOUT and CLOCKOUT

 

 

 

 

 

 

 

 

Refer to I2C Control

tRISEL1

 

Rising Edge Rate

Measured from 0.4V to 2.4V

 

1.33

 

4.0

 

V/ns

 

Low Buffer Strength

 

 

 

REFOUT and CLOCKOUT

 

 

 

 

 

 

 

 

Refer to I2C Control

Document #: 38-07531 Rev. **

 

 

 

 

 

 

 

 

 

 

 

Page 6 of 9

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Contents Pin Configuration FeaturesBlock Diagram 2 5 8 2 2Pin Description Serial Data InterfaceData Protocol Byte 0 Control Register Bit @Pup Pin# Name Pin Description Spread Mode Spread Amount%Block Read and Block Write Protocol Spread Spectrum SelectPWRDWN# Power-down Clarification Bytes 2 through 5 Reserved RegistersByte 1 Control Register Bit @Pup Pin# Name Pin Description Clkout and Refout Enable Clarification Power-down AssertionParameter Description Condition Min Max Unit Description Conditions Min Max UnitSignal Loading Table Clock Name Max Load pF Ordering InformationPart Number Package Type Product Flow Package Diagram Lead 150-Mil Soic S8New Data Sheet Document HistoryDate 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.