CY7B952-SXCT

CY7B952 SST™ SONET/SDH Serial Transceiver SST™ SONET/SDH Serial Transceiver Features ■ No output clock “drift” without data transitions OC-3 Compliant with Bellcore and CCITT (ITU) specifications on: ❐ Jitter Generation ( 0 °C VCC  1.03 VCC  0.83 V VCC  1.86 VCC  1.62 V 0.6 – V VCC V Three-Level Input Pins (MODE) VIHH Three-Level Input HIGH VCC  0.75 VIMM Three-Level Input MID VCC/2  0.5 VCC/2 + 0.5 VILL Three-Level Input LOW V 0.0 0.75 V Operating Current [5] ICCS Static Operating Current – 38 mA ICCR Receiver Operating Current – 50 mA ICCT Transmitter Operating Current – 13 mA ICCE ECL Pair Operating Current – 7.0 mA ICC5 Additional Current at 51.84 MHz – 7.0 mA ICCO Additional Current LFI = LOW – 3 mA Note 5. Total Receiver operating current (assuming that the Transmitter is not activated) can be found by adding ICCS + ICCR + x × ICCE; where x is 2 if the ROUT outputs are not activated and 3 if they are activated. Total Transmitter operating current (assuming that the Receiver is not activated) can be found by adding ICCS + ICCT + x × ICCE; where x is 1 if the TOUT outputs are not activated and 2 if they are activated. Total device power (assuming that the Transmitter and the Receiver are activated) can be found by adding ICCS + ICCR + ICCT + x × ICCE; where x represents the number of ECL output pairs activated. Document Number: 38-02018 Rev. *E Page 8 of 16 [+] Feedback CY7B952 Capacitance Parameter [6] CIN Description Test Conditions TA = 25 C, f0 = 1 MHz, VCC = 5.0 V Input Capacitance Max Unit 10 pF AC Test Loads and Waveforms Figure 2. AC Test Loads and Waveforms 5V R1 OUTPUT R1=910 R2=510 CL < 30 pF (Includes fixture and probe capacitance) VCC – 2 CL CL R2 (a) TTL AC Test Load [7] 3.0V 3.0V GND RL 2.0V (b) ECL AC Test Load VIHE 2.0V 1.0V < 1 ns 1.0V < 1 ns (c) TTL Input Test Waveform VILE [7] VIHE 80% 80% 20% 20% < 1 ns RL =50 CL < 5 pF (Includes fixture and probe capacitance) VILE < 1 ns (d) ECL Input Test Waveform Notes 6. Tested initially and after any design or process changes that may affect these parameters. 7. Cypress uses constant current (ATE) load configurations and forcing functions. This figure is for reference only. Document Number: 38-02018 Rev. *E Page 9 of 16 [+] Feedback CY7B952 Switching Characteristics Over the Operating Range Parameter fREF fB Description Reference Frequency Bit Time [8] Min Max Unit MODE = LOW 6.41 6.55 MHz MODE = HIGH 19.24 19.64 MHz MODE = LOW 19.5 19.1 ns MODE = HIGH 6.50 6.40 ns tODC Output Duty Cycle (TCLK, RCLK) [9] 48 52 % tRF Output Rise/Fall Time [9] 0.4 1.2 ns tLOCK PLL Lock Time (RIN transition density 25%) [10] – 3 ms tRPWH REFCLK Pulse Width HIGH 10 – ns tRPWL REFCLK Pulse Width LOW 10 – ns tDV Data Valid 3 – ns tDH Data Hold 1 – ns tPD Propagation Delay (RIN to ROUT, TSER to TOUT) [11] – 10 ns Jitter Generation Jitter Generation of RX PLL – 0.01 f3dB 3 dB Gain Bandwidth of RX PLL (Jitter Transfer Bandwidth) At 155 MHz – 130 kHz f3dB 3 dB Gain Bandwidth of RX PLL (Jitter Transfer Bandwidth) At 52 MHz – 40 kHz Gpeak Maximum Peaking of RX PLL[12] – 0.1 dB UIrms Notes 8. fB is calculated a 1/(fREF8). 9. Tested initially and after any design or process changes that may affect these parameters. 10. tLOCK is the time needed for transitioning from lock to REFCLK × 8 to lock to data. 11. The ECL switching threshold is the differential zero crossing (i.e., the place where + and – signals cross). 12. Maximum Peaking is measured using a maximum of 1.2 ns peak to peak duty cycle distortion for RINand applying sinusoidal jitter to the input signal at the maximum amplitude of the jitter tolerance mask for each specific jitter frequency as specified by the Bellcore GR-253-Core issue 2, Dec 1995 - SONET Common Generic Criteria for OC-3. Document Number: 38-02018 Rev. *E Page 10 of 16 [+] Feedback CY7B952 Switching Waveforms for the CY7B952 SONET/SDH Serial Transceiver tRPWH tRPWL REFCLK TSER (RIN) tPD TOUT (ROUT) tODC tODC RCLK+ tDH tDV RSER tB/2  tPE tB/2 tPE RIN Document Number: 38-02018 Rev. *E Page 11 of 16 [+] Feedback CY7B952 Ordering Information Speed (ns) 25 Package Name Ordering Code Package Type Operating Range CY7B952-SXC S13 24-pin (300-Mil) Molded SOIC Commercial CY7B952-SXCT S13 24-pin (300-Mil) Molded SOIC Commercial Ordering Code Definitions CY 7B 952 - S X C X X = blank or T blank = Tube; T = Tape and Reel Temperature Range: C = Commercial Pb-free Package Type: S = 24-pin SOIC Base part number: 952 = Serial Transceiver Marketing Code: 7B = HOTLink Transceiver/Receiver Company ID: CY = Cypress Document Number: 38-02018 Rev. *E Page 12 of 16 [+] Feedback CY7B952 Package Diagram Figure 3. 24-pin SOIC (0.615 × 0.300 × 0.0932 Inches) Package Outline, 51-85025 51-85025 *E Document Number: 38-02018 Rev. *E Page 13 of 16 [+] Feedback CY7B952 Acronyms Acronym Document Conventions Description AC alternating current CD carrier detect DC direct current ECL emitter coupled logic I/O input/output LFI link fault indicator PCB printed circuit board PECL Units of Measure Symbol Unit of Measure dB decibel °C degree Celsius kHz kilohertz MHz megahertz µA microampere positive emitter coupled logic µF microfarad PLL phase locked loop mA milliampere SOIC small-outline integrated circuit mV millivolt TTL transistor-transistor logic ns nanosecond VCO voltage controlled oscillator  ohm % percent pF picofarad ppm parts per million V volt Document Number: 38-02018 Rev. *E Page 14 of 16 [+] Feedback CY7B952 Document History Page Document Title: CY7B952, SST™ SONET/SDH Serial Transceiver Document Number: 38-02018 Rev. ECN. Issue Date Orig. of Change ** 105981 03/28/01 SZV Change from Spec. number: 38-00502 to 38-02018 *A 122206 12/28/02 RBI Add power up requirements to maximum ratings information. Description of Change *B 283371 See ECN BCD Removed Preliminary from the data sheet *C 2896206 03/19/10 CGX Removed obsolete part and added the following parts: CY7B952-SXC and CY7B952-SXCT Updated package diagram *D 3092301 11/22/10 SAAC Ordering Information update. Added Ordering Code Definitions. *E 3434099 11/09/2011 SAAC Updated Package Diagram. Added Acronyms and Units of Measure. Updated in new template. Document Number: 38-02018 Rev. *E Page 15 of 16 [+] Feedback CY7B952 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 PSoC Solutions cypress.com/go/automotive psoc.cypress.com/solutions cypress.com/go/clocks PSoC 1 | PSoC 3 | PSoC 5 cypress.com/go/interface cypress.com/go/powerpsoc cypress.com/go/plc Memory Optical & Image Sensing cypress.com/go/memory cypress.com/go/image PSoC cypress.com/go/psoc Touch Sensing cypress.com/go/touch USB Controllers Wireless/RF cypress.com/go/USB cypress.com/go/wireless © Cypress Semiconductor Corporation, 2001-2011. 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: 38-02018 Rev. *E Revised November 9, 2011 Page 16 of 16 SUNI is a trademark of PMC-Sierra, Incorporated. SST is a trademark of Cypress Semiconductor Corporation. All products and company names mentioned in this document may be the trademarks of their respective holders. [+] Feedback