CY25811/12/14 Cypress Semiconductor Corp., CY25811/12/14 Datasheet

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CY25811/12/14

Manufacturer Part Number
CY25811/12/14
Description
Emi Suppression
Manufacturer
Cypress Semiconductor Corp.
Datasheet
Cypress Semiconductor Corporation
Document #: 38-07112 Rev. *C
Features
• 4- to 32-MHz input frequency range
• 4- to 128-MHz output frequency range
• Accepts clock, crystal, and resonator inputs
• 1x, 2x, and 4x frequency multiplication:
• Center and down spread modulation
• Low power dissipation:
• Low cycle-to cycle jitter:
• Available in 8-pin SOIC and TSSOP packages
• Commercial and industrial temperature ranges
Block Diagram
— CY25811: 1x; CY25812: 2x; CY25814: 4x
— 3.3V = 52 mW-typ @ 6MHz
— 3.3V = 60 mW-typ @ 12MHz
— 3.3V = 72 mW-typ @ 24MHz
— 8 MHz = 450 ps-max
— 16 MHz = 225 ps-max
— 32 MHz = 150 ps-max
XOUT
VDD
VSS
XIN
1
8
7
2
8pF
8pF
300K
FRSEL
6
MODULATION
REFERENCE
CONTROL
DECODER
DIVIDER
S1
INPUT
LOGIC
3
S0
4
3901 North First Street
COUNTE
PD and
VCO
CP
R
COUNTER
MUX
and
Spread Spectrum Clock Generator
VCO
LF
SSCLK
5
Applications
Benefits
• Printers and MFPs
• LCD panels
• Digital copiers
• PDAs
• Automotive
• CD-ROM, VCD, and DVD
• Networking, LAN/WAN
• Scanners
• Modems
• Embedded digital systems
• Peak EMI reduction by 8 to 16 dB
• Fast time to market
• Cost reduction
Pin Configuration
XIN/CLKIN
VSS
San Jose
S0
S1
8-pin SOIC/TSSOP
1
2
3
4
,
CA 95134
CY25811
CY25812
CY25814
CY25811/12/14
Revised May 13, 2003
8
7
6
5
XOUT
VDD
FRSEL
SSCLK
408-943-2600

Related parts for CY25811/12/14

CY25811/12/14 Summary of contents

Page 1

... Fast time to market • Cost reduction Pin Configuration XIN/CLKIN PD and LF CP VCO COUNTE VCO R COUNTER and 5 MUX SSCLK 4 S0 • 3901 North First Street • CY25811/12/ XOUT CY25811 2 7 VDD VSS CY25812 CY25814 3 6 FRSEL S1 SSCLK 8-pin SOIC/TSSOP , ...

Page 2

... Refer to CY25568 for multiple clock output options such as modulated and unmodulated clock outputs or Power-down function. Input Frequency Range and Selection The CY25811/12/14 input frequency range MHz. This range is divided into three segments and controlled by 3-Level FRSEL pin as given in Table 1. Table 1. Input Frequency Selection ...

Page 3

... Table 4. As shown, the input frequency range is selected by FRSEL and is the same for CY25811, CY25812, and CY25814. The selection of CY25811 (1x), CY25812 (2x) or CY25814 (4x) determines the frequency multiplication at the output (SSCLK, Pin 5) with respect to input frequency (XIN, Pin-1). CY25811/12/ – ...

Page 4

... ma, SSCLK Output ma, SSCLK Output OH XIN (Pin 1) and XOUT (Pin 8) All Digital Inputs SSCLK Output Fin = 12 MHz, no load Fin = 24 MHz, no load Fin = 32 MHz, no load CY25811/12/14 Output Frequency Range (MHz ...

Page 5

... Clock, Crystal or Ceramic Resonator Input SSCLK, CY25811 and CY25812 SSCLK, CY25811 and CY25812 SSCLK, only CY25814 when FRSEL = M SSCLK, only CY25814 when FRSEL = M XIN SSCLK Fin = 6MHz, CY25811/12/14 Fin = 12MHZ, CY25811/12/14 Fin = 24MHz, CY25811/12/14 From V 3.0V to valid SSCLK DD CY25811/12/14 Min. Max. Unit 4 ...

Page 6

... Characteristic Curves The following curves demonstrate the characteristic behavior of the CY25811/12/14 when tested over a number of environ- mental and application-specific parameters. These are typical performance curves and are not meant to replace any parameter specified in DC and AC Specification tables. 600 500 400 300 ...

Page 7

... SSCG Profiles CY25811/12/14 SSCG products use a non-linear “optimized” frequency profile as shown In Figure 3. 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. Xin = 6.0 MHz SSCLK1 = 6 ...

Page 8

... MHz 8 XOUT CY25811 CY25812 CY25814 S1 6 FRSEL S0 VSS 2 Package Type CY25811/12/14 VDD 25 MHz (CY25811 MHz (CY25812) 100 MHz (CY25814 Product Flow Commercial Commercial Industrial, –40° to 85°C Industrial, –40° to 85°C Commercial ...

Page 9

... The inclusion of Cypress Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges. 8-lead (150-Mil) SOIC – S8 CY25811/12/14 51-85066-*B 51-85093-** ...

Page 10

... Document History Page Document Title: CY25811/12/14 Spread Spectrum Clock Generator Document Number: 38-07112 Issue Orig. of REV. ECN NO. Date Change ** 107516 06/14/02 NDP *A 108002 06/29/02 NDP *B 121578 01/29/03 RGL *C 125550 05/14/03 RGL Document #: 38-07112 Rev. *C Description of Change Converted from IMI to Cypress Deleted Junction Temp. in Absolute Maximum Ratings Converted from Word to FrameMaker Added 8-pin TSSOP package in Commercial Temp ...

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