CY7B951-SC

CY7B951 Local Area Network ATM Transceiver Features • SONET/SDH and ATM Compatible • Compatible with PMC-Sierra PM5345 SUNI™ • Clock and data recovery from 51.84- or 155.52-MHz datastream • 155.52-MHz clock multiplication from 19.44-MHz source • 51.84-MHz clock multiplication from 6.48-MHz source • ±1% frequency agility • Line Receiver Inputs: No external buffering required • Differential output buffering • • 100K ECL compatible I/O • No output clock “drift” without data transitions • Link Status Indication • Loopback testing • Single +5V supply • 24-pin SOIC • Compatible with fiber optic modules, coaxial cable, and twisted pair media • No external PLL components • Power down options to minimize power or crosstalk • Low operating current: 0°C VCC – 1.03 VCC – 1.08 VCC – 1.86 0.6 VCC – 0.75 VCC/2 – 0.5 0.0 VCC VCC/2 + 0.5 0.75 30 50 13 7.0 7.0 3 VCC – 0.83 VCC – 0.83 VCC – 1.62 V V V V V V V mA mA mA mA mA mA 3.0 VCC – 1.165 2.0 2.5 2.5 –0.5 VCC – 1.475 0.8 Test Condition Min. 50 100 Max. 1200 1200 VCC VCC VCC Unit mV mV V V V V V V V Three-Level Input Pins (MODE) Operating Current[5] Capacitance[6] Parameter CIN Description Input Capacitance Test Conditions TA = 25°C, f0 = 1 MHz, VCC = 5.0V Max. 10 Unit pF Notes 4. Specified only for temperatures below 0°C. 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. 6. Tested initially and after any design or process changes that may affect these parameters. Document Number: 38-02010 Rev. *A Page 6 of 10 CY7B951 AC Test Loads and Waveforms (a) TTL AC Test Load[7] (b) ECL AC Test Load[7] (c) TTL Input Test Waveform (d) ECL Input Test Waveform Switching Characteristics Over the Operating Range Parameter fREF fB tPE tODC tRF tLOCK tRPWH tRPWL tDV tDH tPD Reference Frequency Bit Time[8] Error[6] RCLK±)[6] Description MODE = LOW MODE = HIGH MODE = LOW MODE = HIGH Receiver Static Phase MODE = LOW MODE = HIGH Output Duty Cycle (TCLK±, Output Rise/Fall Time[6] PLL Lock Time (RIN transition density 25%)[9] REFCLK Pulse Width HIGH REFCLK Pulse Width HIGH Data Valid Data Hold Propagation Delay (RIN to ROUT, TSER to TOUT)[10] 10 10 3 1 10 48 0.4 Min. 6.41 19.24 19.5 6.50 Max. 6.55 19.64 19.1 6.40 100 200 52 1.2 100 Unit MHz MHz ns ns ps ps % ns µs ns ns ns ns ns Notes 7. Cypress uses constant current (ATE) load configurations and forcing functions. This figure is for reference only. 8. fB is calculated as 1/(fREFX8). 9. tLOCK is the time needed for transitioning from lock to REFCLK X8 to lock to data. 10. The ECL switching threshold is the differential zero crossing (i.e., the place where + and – signals cross). Document Number: 38-02010 Rev. *A Page 7 of 10 CY7B951 Switching Waveforms for the CY7B951 SONET/SDH Serial Transceiver Ordering Information Speed (ns) 25 25 25 25 Ordering Code CY7B951-SC CY7B951-SXC CY7B951-SI CY7B951-SXI Package Name S24.3 SZ24.3 S24.3 SZ24.3 Package Type 24-Lead (300-Mil) Molded SOIC 24-Lead (300-Mil) Pb-Free Molded SOIC 24-Lead (300-Mil) Molded SOIC 24-Lead (300-Mil) Pb-Free Molded SOIC Operating Range Commercial Commercial Industrial Industrial Document Number: 38-02010 Rev. *A Page 8 of 10 CY7B951 Package Diagram Figure 3. 24-Lead (300-Mil) SOIC S24.3/SZ24.3 NOTE : PIN 1 ID 1. JEDEC STD REF MO-119 2. BODY LENGTH DIMENSION DOES NOT INCLUDE MOLD PROTRUSION/END FLASH,BUT DOES INCLUDE MOLD MISMATCH AND ARE MEASURED AT THE MOLD PARTING LINE. MOLD PROTRUSION/END FLASH SHALL NOT EXCEED 0.010 in (0.254 mm) PER SIDE 3. DIMENSIONS IN INCHES MIN. MAX. 12 1 0.291[7.391] 0.300[7.620] 4. PACKAGE WEIGHT 0.65gms * 0.394[10.007] 0.419[10.642] 13 24 0.026[0.660] 0.032[0.812] PART # S24.3 STANDARD PKG. SZ24.3 LEAD FREE PKG. SEATING PLANE 0.597[15.163] 0.615[15.621] 0.092[2.336] 0.105[2.667] 0.004[0.101] 0.015[0.381] 0.050[1.270] 0.050[1.270] TYP. 0.013[0.330] 0.019[0.482] 0.004[0.101] 0.0118[0.299] * 0.0091[0.231] 0.0125[0.317] * 51-85025-*C SUNI is a trademark of PMC-Sierra, Incorporated. All products and company names mentioned in this document may be the trademarks of their respective holders. Document Number: 38-02010 Rev. *A Page 9 of 10 © Cypress Semiconductor Corporation, 2006. 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. CY7B951 Document History Page Document Title: CY7B951 Local Area Network ATM Transceiver Document Number: 38-02010 REV. ** *A ECN. 105848 560754 Issue Date 03/26/01 See ECN Orig. of Change SZV PCX Description of Change Changed from Spec number: 38-00358 to 38-02010 Added Pb-Free part numbers to ordering information Document Number: 38-02010 Rev. *A Page 10 of 10