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Part: CY24126
Category:
Timing Circuits
Description: Mediaclock For LCD Projectors
Company: Cypress Semiconductor Corp.
Datasheet: Download CY24126 datasheet File size : 207 kB
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Datasheet text preview:
PRELIMINARY
CY24126
MediaClockTM for LCD Projectors
1C Y 22 95
Features · Integrated phase-locked loop · Low jitter, high accuracy outputs · 3.3V operation · 8-pin SOIC package Part Number CY24126 Outputs 2 Input Frequency 24 MHz
Benefits High-performance PLL tailored for projector applications Meets critical timing requirements in complex system designs Enables application compatibility Industry standard package saves on board space Output Frequencies 24 MHz, 48.00 MHz/120.00 MHz (selectable)
Logic Block Diagram
REF XIN XOUT
OSC
Q
VCO P OUTPUT DIVIDERS CLK
PLL
S0 S1
VDD
VSS
Pin Configurations
Table 1. XIN (MHz) CY24126 8-pin SOIC
XIN VDD S0 VSS 1 2 3 4 8 7 6 5 XOUT S1 REF CLK
S1[1] L H X
S0 L L H
CLK (MHz) 120.00 48.00 disable
Note x5 x2 -
24.00 24.00 24.00
Note: 1. X = don't care.
Cypress Semiconductor Corporation Document #: 38-07326 Rev. *A
·
3901 North First Street
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San Jose
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CA 95134 · 408-943-2600 Revised December 14, 2002
PRELIMINARY
Pin Summary
Name XIN VDD S0 VSS CLK REF S1 XOUT[2] Pin Number 1 2 3 4 5 6 7 8 Description Reference Input (24-MHz crystal or external input) 3.3V Voltage Supply CLK Select Line, see Table 1 Ground 48.00 MHz/120.00 MHz (frequency selectable). See Table 1 Reference output Clock select line, see Table 1 Drives an external crystal
CY24126
Absolute Maximum Conditions
Parameter VDD TS TJ Storage Description Supply Voltage Temperature[3] Junction Temperature Digital Inputs Digital Outputs referred to VDD Electro-Static Discharge VSS 0.3 VSS 0.3 2 Min. 0.5 65 Max. 7.0 125 125 VDD + 0.3 VDD + 0.3 Unit V °C °C V V kV
Recommended Operating Conditions
Parameter VDD TA CLOAD fREF tPU Description Operating Voltage Ambient Temperature Max. Load Capacitance Reference Frequency Power-up time for all VDD's to reach minimum specified voltage (power ramps must be monotonic) Min. 3.14 0 0.05 Typ. 3.3 24 Max. 3.47 70 15 500 Unit V °C pF MHz ms
DC Electrical Characteristics
Parameter IO H IO L CIN II Z IDD Name Output High Current Output Low Current Input Capacitance Input Leakage Current Supply Current No output load Description VOH = VDD 0.5, VDD = 3.3V VOL = 0.5, VDD = 3.3V Min. 12 12 Typ. 24 24 5 Max. 7 35 Unit mA mA pF µA mA
AC Electrical Characteristics (VDD = 3.3V)
Parameter[4] DC t3 t4 t9 t1 0 Name Output Duty Cycle Rising Edge Slew Rate Falling Edge Slew Rate Clock Jitter PLL Lock Time Description Duty Cycle is defined in Figure 1, 50% of VDD Output Clock Rise Time, 20% - 80% of VDD Output Clock Fall Time, 80% - 20% of VDD Peak to Peak period jitter M in 45 0.8 0.8 Typ 50 1.4 1.4 Max 55 350 3 Unit % V/ns V/ns ps ms Page 2 of 5
Document #: 38-07326 Rev. *A
PRELIMINARY
Notes: 2. Float XOUT if XIN is externally driven. 3. Rated for 10 years. 4. Not 100% tested.
CY24126
Test Circuit VDD 0.1 µF OUTPUTS CLK out CLOAD
GND
t1 t2
CLK
50%
50%
Figure 1. Duty Cycle Definition; DC = t2/t1
t3 80%
t4
CLK
20%
Figure 2. Rise and Fall Time Definitions
Ordering Information
Ordering Code CY24126SC Package Name S8 Package Type 8-Pin SOIC Operating Range Commercial Operating Voltage 3.3V
MediaClock is a trademark of Cypress Semiconductor Corporation. All products and company names mentioned in this document may be the trademarks of their respective holders.
Document #: 38-07326 Rev. *A
Page 3 of 5
PRELIMINARY
Package Diagram
8-Lead (150-Mil) SOIC S8
CY24126
51-85066-A
Document #: 38-07326 Rev. *A
Page 4 of 5
© Cypress Semiconductor Corporation, 2002. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress Semiconductor product. Nor does it convey or imply any license under patent or other rights. Cypress Semiconductor does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. 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.
PRELIMINARY
Document Title: CY24126 MediaClockTM for LCD Projectors Document Number: 38-07326 REV. ** *A ECN NO. 111595 121889 Issue Date 03/01/02 12/14/02 Orig. of Change CKN RBI New data sheet Description of Change
CY24126
Power up requirements added to Operating Conditions Information
Document #: 38-07326 Rev. *A
Page 5 of 5
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