CY2CP1504

CY2CP1504 1:4 LVCMOS to LVPECL Fanout Buffer with Selectable Clock Input Features ■ Functional Description The CY2CP1504 is an ultra-low noise, low-skew, low-propagation delay 1:4 LVCMOS to LVPECL fanout buffer targeted to meet the requirements of high-speed clock distribution applications. The CY2CP1504 can select between two separate LVCMOS input clocks using the IN_SEL pin. The synchronous clock enable function ensures glitch-free output transitions during enable and disable periods. The device has a fully differential internal architecture that is optimized to achieve low additive jitter and low skew at operating frequencies of up to 250 MHz. Select one of two low-voltage complementary metal oxide semiconductor (LVCMOS) inputs to distribute to four low-voltage positive emitter-coupled logic (LVPECL) output pairs 30-ps maximum output-to-output skew 480-ps maximum propagation delay 0.15-ps maximum additive RMS phase jitter at 156.25 MHz (12-kHz to 20-MHz offset) Up to 250 MHz operation Synchronous clock enable function 20-Pin thin shrunk small outline package (TSSOP) package 2.5-V or 3.3-V operating voltage[1] Commercial and industrial operating temperature range ■ ■ ■ ■ ■ ■ ■ ■ Logic Block Diagram VDD VSS Q0 Q0# Q1 Q1# IN0 IN1 Q2 Q2# Q3 Q3# IN_SEL 100k VDD 100k Q D CLK_EN Note 1. Input AC-coupling capacitors are required for voltage-translation applications. Cypress Semiconductor Corporation Document Number: 001-56313 Rev. *F • 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600 Revised February 25, 2011 [+] Feedback CY2CP1504 Contents Pinouts .............................................................................. 3 Absolute Maximum Ratings ............................................ 4 Operating Conditions....................................................... 4 DC Electrical Specifications ............................................ 5 AC Electrical Specifications ............................................ 6 Ordering Information........................................................ 9 Ordering Code Definition............................................. 9 Package Dimension........................................................ 10 Acronyms ........................................................................ 11 Document Conventions ................................................. Document History Page ................................................. Sales, Solutions, and Legal Information ...................... Worldwide Sales and Design Support....................... Products .................................................................... PSoC Solutions ......................................................... 11 12 13 13 13 13 Document Number: 001-56313 Rev. *F Page 2 of 13 [+] Feedback CY2CP1504 Pinouts Figure 1. Pin Diagram – 20-Pin TSSOP Package VSS CLK_EN IN_SEL IN0 NC IN1 NC NC NC VDD 1 2 3 4 5 6 7 8 9 10 20 19 18 Q0 Q0# VDD Q1 Q1# Q2 Q2# VDD Q3 Q3# CY2CP1504 17 16 15 14 13 12 11 Table 1. Pin Definitions Pin No. 1 2 Pin Name VSS CLK_EN Input Pin Type Power Ground Synchronous clock enable. LVCMOS/low-voltage transistor-transistor logic (LVTTL). When CLK_EN = Low, Q(0:3) outputs are held low and Q(0:3)# outputs are held high Input clock select pin. LVCMOS/LVTTL; When IN_SEL = Low, input IN0 is active When IN_SEL = High, input IN1 is active LVCMOS input clock. Active when IN_SEL = Low No connection Input Power Output Output LVCMOS input clock. Active when IN_SEL = High Power supply LVPECL complementary output clocks LVPECL output clocks Description 3 IN_SEL Input 4 5,7,8,9 6 10,13,18 11,14,16,19 12,15,17,20 IN0 NC IN1 VDD Q(0:3)# Q(0:3) Input Document Number: 001-56313 Rev. *F Page 3 of 13 [+] Feedback CY2CP1504 Absolute Maximum Ratings Parameter VDD VIN[2] VOUT[2] TS ESDHBM LU UL–94 MSL Supply voltage Input voltage, relative to VSS DC output or I/O voltage, relative to VSS Storage temperature Electrostatic discharge (ESD) protection (Human body model) Latch up Flammability rating Moisture sensitivity level At 1/8 in Description Condition Nonfunctional Nonfunctional Nonfunctional Nonfunctional JEDEC STD 22-A114-B Min –0.5 –0.5 –0.5 –55 2000 Max 4.6 lesser of 4.0 or VDD + 0.4 lesser of 4.0 or VDD + 0.4 Unit V V V °C V 150 – Meets or exceeds JEDEC Spec JESD78B IC Latchup Test V-0 3 Operating Conditions Parameter VDD TA tPU Supply voltage Ambient operating temperature Power ramp time Description Condition 2.5-V supply 3.3-V supply Commercial Industrial Power-up time for VDD to reach minimum specified voltage (power ramp must be monotonic) Min 2.375 3.135 0 –40 0.05 Max 2.625 3.465 70 85 500 Unit V V °C °C ms Note 2. The voltage on any I/O pin cannot exceed the power pin during power up. Power supply sequencing is not required. Document Number: 001-56313 Rev. *F Page 4 of 13 [+] Feedback CY2CP1504 DC Electrical Specifications (VDD = 3.3 V ± 5% or 2.5 V ± 5%; TA = 0 °C to 70 °C (Commercial) or –40 °C to 85 °C (Industrial)) Parameter IDD VIH1 VIL1 VIH2 VIL2 IIH IIL VOH VOL RP CIN Description Operating supply current Input high voltage, All inputs Input low voltage, All inputs Input high voltage, All inputs Input low voltage, All inputs Input high current, All inputs Input low current, All inputs LVPECL output high voltage LVPECL output low voltage Internal pull-up/pull-down resistance Input capacitance VDD = 3.3 V VDD = 3.3 V VDD = 2.5 V VDD = 2.5 V Input = VDD[3] Input = VSS[3] Terminated with 50 Ω to VDD – CLK_EN has pull-up only IN_SEL has pull-down only Measured at 10 MHz; per pin 2.0[4] Terminated with 50 Ω to VDD – 2.0[4] Condition All LVPECL outputs floating (internal IDD) Min – 2.0 –0.3 1.7 –0.3 – –150 Max 61 VDD + 0.3 0.8 VDD + 0.3 0.7 150 – Unit mA V V V V μA μA V V kΩ pF VDD – 1.20 VDD – 0.70 VDD – 2.0 VDD – 1.63 60 – 140 3 Notes 3. Positive current flows into the input pin, negative current flows out of the input pin. 4. Refer to Figure 2 on page 7. Document Number: 001-56313 Rev. *F Page 5 of 13 [+] Feedback CY2CP1504 AC Electrical Specifications (VDD = 3.3 V ± 5% or 2.5 V ± 5%; TA = 0 °C to 70 °C (Commercial) or –40 °C to 85°C (Industrial)) Parameter FIN FOUT VPP tPD[5] tODC[6] tSK1[7] tSK1 D[7] Description Input frequency Output frequency LVPECL differential output voltage peak- to-peak, single-ended. Terminated with 50 Ω to VDD – 2.0[4] Propagation delay input to output pair Output duty cycle Output-to-output skew Device-to-device output skew FOUT = FIN Fout = DC to 150 MHz Fout = >150 MHz to 250 MHz Input rise/fall time < 1.5 ns (20% to 80%) Rail-to-rail input swing, 50% input DTCY measured at Vdd/2 Any output to any output, with same load conditions at DUT Any output to any output between two or more devices. Devices must have the same input and have the same output load. Offset = 1 kHz Offset = 10 kHz Offset = 100 kHz Offset = 1 MHz Offset = 10 MHz Offset = 20 MHz tJIT[8] tR, tF[9] Additive RMS phase jitter (Random) 156.25 MHz sinewave, 12 kHz to 20 MHz offset; input swing = 2.2V, Vbias = VDD/2 50% duty cycle at input, 20% to 80% of full swing (VOL to VOH) Input rise/fall time < 1.5 ns (20% to 80%) Synchronous clock enable (CLK_EN) switched Low Synchronous clock enable (CLK_EN) switched high Condition Min DC DC 600 400 – 45 – – Typ – – – – – – – – Max 250 250 – – 480 55 30 150 Unit MHz MHz mV mV ps % ps ps PNADD Additive RMS phase noise 156.25-MHz Input Rise/fall time < 150 ps (20% to 80%) VID > 400 mV – – – – – – – – – – – – – – –120 –130 –135 –150 –150 –150 0.15 dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz ps Output rise/fall time – – 300 ps tSOD tSOE Time from clock edge to outputs disabled Time from clock edge to outputs enabled – – – – 700 700 ps ps Notes 5. Refer to Figure 3 on page 7. 6. Refer to Figure 4 on page 7. 7. Refer to Figure 5 on page 7. 8. Refer to Figure 6 on page 8. 9. Refer to Figure 7 on page 8. Document Number: 001-56313 Rev. *F Page 6 of 13 [+] Feedback CY2CP1504 Figure 2. Output Differential Voltage Q VPP Q# VOH VOL Figure 3. Input to Any Output Pair Propagation Delay IN Q X# QX tPD Figure 4. Output Duty Cycle QX Q X# tPW tPERIOD tODC = tPW tPERIOD Figure 5. Output-to-Output and Device-to-Device Skew QX Q X# Device 1 QY Q Y# tSK1 QZ Device 2 Q Z# tSK1 D Document Number: 001-56313 Rev. *F Page 7 of 13 [+] Feedback CY2CP1504 Figure 6. RMS Phase Jitter Phase noise Noise Powe r Phase noise mark Offset Frequency f1 f2 A rea Under the Masked Phase Noise Plot RMS Jitter ∝ Figure 7. Output Rise/Fall Time QX 20% QX# tR 80% 80% VPP 20% tF Figure 8. Synchronous Clock Enable Timing CLK_EN INX tSOD tPD tSOE QX QX# Document Number: 001-56313 Rev. *F Page 8 of 13 [+] Feedback CY2CP1504 Ordering Information Part Number Pb-free CY2CP1504ZXC CY2CP1504ZXCT CY2CP1504ZXI CY2CP1504ZXIT 20-Pin TSSOP 20-Pin TSSOP tape and reel 20-Pin TSSOP 20-Pin TSSOP tape and reel Commercial, 0 °C to 70 °C Commercial, 0 °C to 70 °C Industrial, –40 °C to 85 °C Industrial, –40 °C to 85 °C Type Production Flow Ordering Code Definition CY 2CP15 04 ZX C/I T Tape and reel Temperature range C = Commercial I = Industrial Pb-free TSSOP package Number of differential output pairs Base part number Company ID: CY = Cypress Document Number: 001-56313 Rev. *F Page 9 of 13 [+] Feedback CY2CP1504 Package Dimension Figure 9. 20-Pin Thin Shrunk Small Outline Package (4.40-mm Body) ZZ20 51-85118 *C Document Number: 001-56313 Rev. *F Page 10 of 13 [+] Feedback CY2CP1504 Acronyms Table 2. Acronyms Used in this Document Acronym ESD HBM JEDEC LVDS LVCMOS LVPECL LVTTL OE RMS TSSOP Description electrostatic discharge human body model Joint electron devices engineering council low-voltage differential signal low-voltage complementary metal oxide semiconductor low-voltage positive emitter-coupled logic low-voltage transistor-transistor logic Output enable root mean square thin shrunk small outline package Document Conventions Table 3. Units of Measure Symbol °C dBc GHz Hz kΩ µA µF µs mA ms mV MHz ns Ω pF ps V W degree Celsius decibels relative to the carrier giga hertz hertz kilo ohm microamperes micro Farad microsecond milliamperes millisecond millivolt megahertz nanosecond ohm pico Farad pico second volts watts Unit of Measure Document Number: 001-56313 Rev. *F Page 11 of 13 [+] Feedback CY2CP1504 Document History Page Document Title: CY2CP1504 1:4 LVCMOS to LVPECL Fanout Buffer with Selectable Clock Input Document Number: 001-56313 Revision ** *A ECN 2782891 2838916 Orig. of Change CXQ CXQ Submission Date 10/09/09 05/01/2010 New Datasheet Changed status from “ADVANCE” to “PRELIMINARY”. Changed from 0.34 ps to 0.25 ps maximum additive jitter in “Features” on page 1 and in tJIT in the AC Electrical Specs table on page 5. Added tPU spec to the Operating Conditions table on page 3. Changed max IDD spec in the DC Electrical Specs table on page 4 from 60 mA to 61 mA. Changed VOH in the DC Electrical Specs table on page 4: minimum from VDD - 1.15V to VDD - 1.20V; maximum from VDD - 0.75V to VDD - 0.70V. Removed VOD spec from the DC Electrical Specs table on page 4. Added RP spec in the DC Electrical Specs table on page 4. Min = 60 kΩ, Max = 140 kΩ. Added a measurement definition for CIN in the DC Electrical Specs table on page 4. Added VPP spec to the AC Electrical Specs table on page 5. VPP min = 600 mV for DC - 150 MHz and min = 400 mV for 150 MHz to 250 MHz. Changed letter case and some names of all the timing parameters in the AC Electrical Specs table on page 5 to be consistent with EROS. Lowered all additive phase noise mask specs by 3 dB in the AC Electrical Specs table on page 5. Added condition to tR and tF specs in the AC Electrical specs table on page 5 that input rise/fall time must be less than 1.5 ns (20% to 80%). Changed letter case and some names of all the timing parameters in Figures 2, 3, 4, 5 and 7, to be consistent with EROS. Changed from 0.25 ps to 0.15 ps maximum additive jitter in “Features” on page 1 and in tJIT in the AC Electrical Specs table on page 6. Added note 2 to describe IIH and IIL specs. Removed reference to data distribution from “Functional Description”. Updated phase noise specs for 1 k/10 k/100 k/1 M/10 M/20 MHz offset to -120/-130/-135/-150/-150/-150dBc/Hz, respectively, in the AC Electrical Specs table. Updated package diagram. Added Acronyms and Ordering Code Definition. Corrected Output Rise/Fall time diagram. Changed VIN and VOUT specs from 4.0V to “lesser of 4.0 or VDD + 0.4” Removed 200mA min LU spec, replaced with “Meets or exceeds JEDEC Spec JESD78B IC Latchup Test” Changed CIN condition to “Measured at 10 MHz”. Removed tR and tF input specs from AC specs table. Changed tODC from 48/52% to 45/55%, changed condition to “Rail-to-rail input swing, 50% input duty cycle measured at Vdd/2”. Changed phase jitter condition to “156.25 MHz sinewave, 12 kHz to 20 MHz offset; input swing = 2.2V, Vbias = VDD/2 “ Removed tS and tH specs from AC specs table. Removed “Preliminary” status heading. Removed resistors from IN0/IN1 in Logic Block Diagram. Added Figure 8 to describe TSOE and TSOD. Post to external web. Description of Change *B 3011766 CXQ 08/20/2010 *C *D 3017258 3100234 CXQ CXQ 08/27/2010 11/18/2010 *E 3137726 CXQ 01/13/2011 *F 3182321 CXQ 02/25/11 Document Number: 001-56313 Rev. *F Page 12 of 13 [+] Feedback CY2CP1504 Sales, Solutions, and Legal Information Worldwide Sales and Design Support Cypress maintains a worldwide network of offices, solution centers, manufacturer’s representatives, and distributors. To find the office closest to you, visit us at Cypress Locations. Products Automotive Clocks & Buffers Interface Lighting & Power Control Memory Optical & Image Sensing PSoC Touch Sensing USB Controllers Wireless/RF cypress.com/go/automotive cypress.com/go/clocks cypress.com/go/interface cypress.com/go/powerpsoc cypress.com/go/plc cypress.com/go/memory cypress.com/go/image cypress.com/go/psoc cypress.com/go/touch cypress.com/go/USB cypress.com/go/wireless PSoC Solutions psoc.cypress.com/solutions PSoC 1 | PSoC 3 | PSoC 5 © Cypress Semiconductor Corporation, 2009-2011. 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 product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress 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 products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges. Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by and subject to worldwide patent protection (United States and foreign), United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of, and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as specified above is prohibited without the express written permission of Cypress. Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not assume any liability arising out of the application or use of any product or circuit described herein. Cypress 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’ product in a life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges. Use may be limited by and subject to the applicable Cypress software license agreement. Document Number: 001-56313 Rev. *F Revised February 25, 2011 Page 13 of 13 All products and company names mentioned in this document may be the trademarks of their respective holders. [+] Feedback