Precision Edge® ® SY89327L Precision Edge 3.3V 2.5Gbps ANY INPUT-to-LVPECL DIFFERENTIAL TRANSLATOR Micrel, Inc. SY89327L FEATURES ■ Input accepts virtually all logic standards: • Single-ended: SSTL, TTL, CMOS • Differential: LVDS, HSTL, CML ■ Guaranteed AC performance over temp and voltage: • DC-to >2.5Gbps data rate throughput • DC-to >2.5GHz clock fMAX • < 400ps In-to-Out tpd • < 200ps tr/tf ■ Ultra-low jitter design: • <1psRMS random jitter • <10psPP deterministic jitter • <1psRMS cycle-to-cycle jitter • <10psPP total jitter (clock) ■ Low power: 46mW (typ) ■ 100k LVPECL output ■ Flow-through pinout and fully differential design ■ Power supply 3.3V ±10% ■ –40°C to +85°C temperature range ■ Available in ultra-small 8-lead 2mm × 2mm MLF™ package Precision Edge® DESCRIPTION The SY89327L is a fully differential, high-speed translator optimized to accept any logic standard from single-ended TTL/CMOS to differential LVDS, HSTL, or CML and translate it to LVPECL. Translation is guaranteed for speeds up to 2.5Gbps (2.5GHz toggle frequency). The SY89327L does not internally terminate its inputs because different interfacing standards have different termination requirements. The SY89327L is a member of Micrel’s Precision Edge® family of high-speed logic devices. This family features ultrasmall packaging, as well as high signal integrity and operation at many different supply voltages. All support documentation can be found on Micrel’s web site at www.micrel.com. APPLICATIONS ■ ■ ■ ■ High-speed logic Data communications systems Wireless communications systems Telecom systems TYPICAL APPLICATIONS CIRCUIT FUNCTIONAL BLOCK DIAGRAM ANY IN NC 1 8 VCC IN 2 7 Q /IN 3 6 /Q NC 4 5 VEE Backplane LVPECL OUT SY89327L 100mV Input Swing 800mV Output Swing (LVPECL) 8-Lead MLF™ (2mm × 2mm) 800mV 100mV LVPECL Input Waveform Output Waveform Precision Edge is a registered trademark of Micrel, Inc. MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc. M9999-072005 [email protected] or (408) 955-1690 Rev.: B 1 Amendment: /0 Issue Date: July 2005 Precision Edge® SY89327L Micrel, Inc. PACKAGE/ORDERING INFORMATION Ordering Information NC 1 8 VCC IN 2 7 Q /IN 3 6 /Q NC 4 5 GND Package Type Operating Range SY89327LMITR MLF-8 Industrial 327 Sn-Pb SY89325LMGTR MLF-8 Industrial 327 with Pb-Free bar-line indicator Pb-Free NiPdAu Part Number Package Marking Lead Finish 8-Lead MLF™ PIN DESCRIPTION Pin Number Pin Name Pin Function 2, 3 IN, /IN 8 VCC Positive power supply. Bypass with 0.1µF0.01µF low ESR capacitors. 7, 6 Q, /Q Differential LVPECL Output: Terminate with 50Ω to VCC–2V. See “Output Interface Applications” section. Output pair is 100k temperature compensated LVPECL compatible. 5 GND, Exposed Pad 1, 4 NC Differential inputs: This input is the differential signal input to the device. This input accepts AC- or DC-coupled signals as small as 100mV. External termination is required. Please refer to the “Input Interface Applications” section for more details. Ground: Ground pin and exposed pad must be connected to the same ground plane. No connect. FUNCTIONAL DESCRIPTION Establishing Static Logic Inputs Do not leave unused inputs floating. Tie either the true or complement input to ground. A logic zero is achieved by connecting the complement input to ground with the true input floating. For a TTL input, tie a 2.5kΩ resistor between the complement input and ground. See “Input Interface” section. For LVDS applications, only point-to-point interfaces are supported. Due to the current required by the input structure shown in Figure 1, multi-drop and multi-point architectures are not supported. VCC R2 1.5kΩ Input Levels LVDS, CML, and HSTL differential signals may be connected directly to the D inputs. Depending on the actual worst case voltage seen, the SY8327L's performance varies as per the following table: DIN R1 1.05kΩ /DIN R1 1.05kΩ Input Voltage Range Minimum Voltage Swing Maximum Translation Speed 0 to 2.4V 100mV 2.5Gbps 0 to VCC +0.3V 200mV 1.25Gbps M9999-072005 [email protected] or (408) 955-1690 R2 1.5kΩ GND Figure 1. Simplified Input Structure 2 Precision Edge® SY89327L Micrel, Inc. Absolute Maximum Ratings(1) Operating Ratings(2) Supply Voltage (VCC) ................................ –-0.5V to + 4.0V Input Voltage (VIN) ......................................... –0.5V to VCC Input Current Source or sink current on IN, /IN .......................... ±50mA Lead Temperature (soldering, 20 sec.) ................... +260°C Storage Temperature (TS) ...................... –65°C to +150°C Supply Voltage (VCC) ..................................... 3.0V to 3.6V Ambient Temperature (TA) ......................... –40°C to +85°C Package Thermal Resistance(3) MLF™ (θJA) Still-Air ................................................................. 93°C/W 500lfpm ............................................................... 87°C/W MLF™ (ΨJB) Junction-to-Board ............................................... 32°C/W DC ELECTRICAL CHARACTERISTICS(4) TA = –40°C to +85°C; unless stated. Symbol Parameter VCC Power Supply ICC Power Supply Current Condition Min Typ Max Units 3.0 3.3 3.6 V 28 45 mA Typ Max Units VCC+0.3 V No load, max. VCC(5) INPUT ELECTRICAL CHARACTERISTICS(4) VCC = 3.3V ±10%; TA = –40°C to +85°C; RL = 50Ω to VCC–2V, or equivalent, unless otherwise stated. Symbol Parameter Condition Min VIH Input HIGH Voltage VIH min must be ≥ 1.2V VIL Input LOW Voltage VIN Input Voltage Swing –0.3 V See Figure 2a, VIH < 2.4V 100 mV See Figure 2a, VIH < VCC +0.3V 200 mV LVPECL OUTPUT DC ELECTRICAL CHARACTERISTICS(4) VCC = 3.3V ±10%; TA = –40°C to +85°C; RL = 50Ω to VCC–2V, or equivalent, unless otherwise stated. Symbol Parameter Condition Min Typ Max Units VOL Output HIGH Voltage Q, /Q VCC–1.945 VCC –1.695 V VOH Output Common Mode Range Q, /Q VCC–1.145 VCC –0.895 V VOUT Output Voltage Swing Q, /Q See Figure 2a 550 800 mV VDIFF-OUT Differential Output Voltage Swing Q, /Q See Figure 2b 1100 1600 mVPP Notes: 1. Permanent device damage may occur if the “Absolute Maximum Ratings” are exceeded. This is a stress rating only and functional operation is not implied at conditions other than those detailed in the operational sections of this data sheet. Exposure to the absolute maximum ratings conditions for extended periods may affect device reliability. 2. The data sheet limits are not guaranteed if the device is operated beyond the operating ratings. 3. Package Thermal Resistance assumes exposed pad is soldered (or equivalent) to the devices' most negative potential on the PCB. ΨJB uses 4-layer θJA in still-air unless otherwise stated. 4. The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established. M9999-072005 [email protected] or (408) 955-1690 3 Precision Edge® SY89327L Micrel, Inc. AC ELECTRICAL CHARACTERISTICS (5) VCC = 3.3V ±10%; TA = –40°C to +85°C; RL = 50Ω to VCC–2V, or equivalent, unless otherwise stated. Symbol Parameter Condition fMAX Maximum Operating Frequency Min NRZ Data VOUT ≥ 200mV tpd tJITTER tr, tf Propagation Delay IN-to-Q, /IN-to-/Q Clock VIN ≥ 100mV Typ Max 2.5 Units Gbps 2.5 GHz 400 ps Random Jitter (RJ) Note 6 1 psRMS Deterministic Jitter (DJ) Note 7 10 psPP Total Jitter (TJ) Note 8 10 psPP At full output swing 200 ps Rise / Fall Time (20% to 80%) Q, /Q Notes: 5. See “Timing Diagrams” section for definition of parameters. High frequency AC-parameters are guaranteed by design and characterization. 6. RJ is measured with a K28.7 comma detect character pattern, measured at fMAX. 7. DJ is measured at 2.5Gbps, with both K28.5 and 223–1 PRBS pattern. 8. Total jitter definition: with an ideal clock input of frequency ≤fMAX, no more than one output edge in 1012 output edges will deviate by more than the specified peak-to-peak jitter value. M9999-072005 [email protected] or (408) 955-1690 4 Precision Edge® SY89327L Micrel, Inc. SINGLE-ENDED AND DIFFERENTIAL SWINGS VDIFF_OUT 1600mV (Typ.) VOUT 800mV (Typ.) Figure 2b. Differential Voltage Swing Figure 2a. Single-Ended Voltage Swing TIMING DIAGRAM IN /IN tpd Q /Q Figure 3. Timing Diagram M9999-072005 [email protected] or (408) 955-1690 5 Precision Edge® SY89327L Micrel, Inc. INPUT INTERFACE APPLICATIONS VCC(DRIVER) VCC(327) 2.3V to 2.7V VCC(DRIVER) VCC(327) VCC(DRIVER) VCC(DRIVER) 2.5V LVTTL IN LVTTL IN IN /IN SY89327L 102Ω 1% CML 2.5kΩ 1% Figure 4. 3.3V "TTL" VCC(327) VCC(DRIVER) /IN /IN SY89327L SY89327L VCC IN VCC CML PECL /IN SY89327L Figure 6. 2.5V "TTL" VCC(DRIVER) VCC(DRIVER) 51Ω 1% 2.5kΩ 1% Figure 5. CML-DC Coupled IN 51Ω 1% VCC 102Ω 1% /IN SY89327L IN HSTL /IN 50Ω 3.92kΩ 1% 50Ω VCC—2V Figure 7. PECL-DC Coupled 3.92kΩ 1% SY89327L Figure 8. HSTL Figure 9. CML-AC Coupled Short Lines VCC 82Ω 1% VCC(DRIVER) 82Ω 1% VDDQ VCC VCC IN 105Ω 1% CML /IN 130Ω 1% IN LVDS Figure 10. CML-AC Coupled Long Lines 102Ω 1% VCC 110Ω 1% IN SSTL_3 /IN 90.9Ω 1% 90.9Ω 1% SY89327L Figure 13. SSTL_3 M9999-072005 [email protected] or (408) 955-1690 /IN SY89327L Figure 11. LVDS VDDQ 110Ω 1% IN VCC SY89327L 130Ω 1% 105Ω 1% 6 /IN SSTL_2 100Ω 1% 100Ω 1% Figure 12. SSTL_2 SY89327L Precision Edge® SY89327L Micrel, Inc. RELATED PRODUCT AND SUPPORT DOCUMENTATION Part Number Function Data Sheet Link SY55857L 3.3V, 2.5Gbps Any Input-to-LVPECL Dual Translator www.micrel.com/product-info/products/sy55857l.shtml MLF™ Application Note www.amkor.com/products/notes_papers/MLF_AppNote_0902.pdf New Products and Applications www.micrel.com/product-info/products/solutions.shtml HBW Solutions M9999-072005 [email protected] or (408) 955-1690 7 Precision Edge® SY89327L Micrel, Inc. 8 LEAD MicroLeadFrame (MLF-8) Package Notes: 1. Package meets Level 2 qualification. 2. All parts are dry-packaged before shipment. 3. Exposed pads must be soldered to a ground for proper thermal management. MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 TEL + 1 (408) 944-0800 FAX + 1 (408) 474-1000 WEB USA http://www.micrel.com The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser’s own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. © 2005 Micrel, Incorporated. M9999-072005 [email protected] or (408) 955-1690 8