Precision Edge® ® SY89329V Precision Edge 3.3V/5V 800MHz LVTTL/LVCMOS-to-DIFFERENTIAL LVPECL TRANSLATOR Micrel, Inc. SY89329V FEATURES ■ Guaranteed AC performance over temp and voltage: • DC-to-800MHz fMAX • <100ps IN-to-OUT tpd ■ Ultra-low jitter design: • <1psRMS random jitter • <10psPP deterministic jitter • <1psRMS cycle-to-cycle jitter • <1psPP total jitter (clock) ■ Differential LVPECL output ■ ICC max. 20mA ■ Q output will default HIGH with inputs open ■ Power supply 3.3V ±10% or 5.0V ±10% ■ –40°C to +85°C temperature range ■ Available in ultra-small 8-pin (2mm × 2mm) MLF™ package Precision Edge® DESCRIPTION The SY89329V is a TTL/CMOS-to-differential PECL translator. Capable of running from a 3.3V or 5V supply, the part can be used in either LVTTL/LVCMOS/LVPECL or TTL/CMOS/PECL systems. The device requires only a single positive supply of 3.3V or 5V; no negative supply is required. The ultra-small 8-pin MLF™ package of the SY89329V makes it ideal for applications where space, performance, and low power are at a premium. For applications that require a dual translator in this same ultra-small MLF™ package, consider the SY89322V. 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 LVPECL NC 1 8 VCC Q 2 7 IN /Q 3 6 NC NC 4 5 VEE SY89329V Backplane LVTTL/LVCMOS 2.0V Input Swing 800mV Output Swing 8-Pin MLF™ (2mm × 2mm) VCC 2.4V VCC 2.3V 2.0V 1.5V 800mV Swing Typical values for VCC = 3.3V 0.4V Single-Ended LVTTL/LVCMOS Input Differential LVPECL Output 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® SY89329V Micrel, Inc. PACKAGE/ORDERING INFORMATION Ordering Information NC 1 Q 2 /Q 3 NC 4 Package Type Operating Range SY89329VMITR MLF-8 Industrial 329 Sn-Pb SY89329VMGTR MLF-8 Industrial 329 with Pb-Free bar-line indicator Pb-Free NiPdAu 8 VCC Part Number 7 IN 6 NC Package Marking Lead Finish 5 GND 8-Pin MLF™ PIN DESCRIPTION Pin Number Pin Name 7 IN 8 VCC Positive power supply. Bypass with 0.1µF0.01µF low ESR capacitors. 2, 3 Q, /Q Differential LVPECL output: This output is the output of the device. Terminate with 50Ω to VCC–2V. See “Output Interface Applications” section. Defaults HIGH if IN is floating. 5 GND, Exposed Pad 1, 4, 6 NC M9999-072005 [email protected] or (408) 955-1690 Pin Function Single-ended input: This is the LVTTL/LVCMOS input to the device. Input switching threshold is VCC/2. If left floating, Q output will default HIGH. Ground: Ground pin and exposed pad must be connected to the same ground plane. No connect. 2 Precision Edge® SY89329V Micrel, Inc. Absolute Maximum Ratings(1) Operating Ratings(2) Supply Voltage (VCC) ................................ –0.5V to + 4.0V Input Voltage (VIN) ........................................ –0.5V to VCC LVPECL Output Voltage (VOUT) .... VCC–1.0V to VCC+0.5V LVPECL Output Current (IOUT) Continuous ............................................................. 50mA Surge .................................................................... 100mA Input Current Source or sink current on IN ................................ ±50mA Lead Temperature (soldering, 20 sec.) ................... +260°C Storage Temperature (TS) ...................... –65°C to +150°C Supply Voltage (VCC) ..................................... 3.0V to 3.3V ................................................................ 4.5V to 5.5V 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) Symbol Parameter VCC Power Supply ICC Power Supply Current Condition Min Typ Max Units 3.0 3.3 3.6 V 4.5 5.0 5.5 V 20 mA Max Units No load, max. VCC. LVTTL/LVCMOS ELECTRICAL CHARACTERISTICS(4) TA= –40°C to +85°C; Unless otherwise stated. Symbol Parameter VIH Input HIGH Voltage (IN, /IN) VIL Input LOW Voltage (IN, /IN) IIH Input HIGH Current Condition Min Typ 2.0 V 0.8 V VIN = 2.7V 20 µA VIN = VCC 100 µA IIL Input LOW Current VIN = 0.5V –0.2 mA VIK Input Clamp Voltage IIN = –18mA –1.2 V LVPECL OUTPUTS DC ELECTRICAL CHARACTERISTICS(4) VCC = 3.3V ±10% or 5V ±10%; TA = –40°C to +85°C; RL = 50Ω to VCC–2V, or equivalent, unless otherwise stated. Symbol Parameter Condition Min Typ Max Units VOH Output HIGH Voltage Q, /Q Note 2 VCC–1.080 VCC –0.880 V VOL Output LOW Voltage Q, /Q VCC–1.830 VCC –1.550 V VOUT Output Voltage Swing Q, /Q See Figure 1a. 600 800 mV VDIFF-OUT Differential Output Voltage Swing Q, /Q See Figure 1b. 1200 1600 mV 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® SY89329V Micrel, Inc. AC ELECTRICAL CHARACTERISTICS (5) VCC = 3.3V ±10% or 5.0V ±10%; TA = –40°C to +85°C, unless otherwise stated. Symbol Parameter Condition fMAX Maximum Operating Frequency VOUT ≥ 350mV tpd Propagation Delay IN-to-Q, /IN-to-/Q tJITTER tr, tf Min 100 Typ Max Units 800 MHz 600 ps Random Jitter (RJ) Note 6 1 psRMS Deterministic Jitter (DJ) Note 7 10 psPP Cycle-to-Cycle Jitter Note 8 1 psRMS Total Jitter (TJ) Note 9 25 psPP 500 ps Rise / Fall Time (20% to 80%) Q, /Q At full output swing. 200 Notes: 5. Measured with outputs loaded with 50Ω to VCC –2V unless otherwise stated. See “Timing Diagrams” section for definition of parameters. Highfrequency 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 fMAX, with both K28.5 and 223-1 PRBS pattern 8. Cycle-to-cycle jitter definition: the variation of periods between adjacent cycles, Tn–Tn–1 where T is the time between rising edges of the output signal. 9. 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. SINGLE-ENDED AND DIFFERENTIAL SWING VOUT 800mV (Typ.) VDIFF_OUT 1600mV (Typ.) Figure 1b. Differential Voltage Swing Figure 1a. Single-Ended Voltage Swing TIMING DIAGRAM IN tpd Q /Q Figure 2. Timing Diagram M9999-072005 [email protected] or (408) 955-1690 4 Precision Edge® SY89329V Micrel, Inc. OUTPUT INTERFACE APPLICATIONS VCC VCC R1 VCC R1 VCC Z = 50Ω VCC ZO = 50Ω Z = 50Ω ZO = 50Ω 50Ω VCC—2V R2 For 3.3V, Rpd = 50Ω For 5V, Rpd = 100Ω R2 For 3.3V, R1 = 130Ω, R2 = 82Ω For 5V, R1 = 83Ω, R2 = 125Ω 50Ω Rpd VCC 0.01µF (optional) Figure 3b. Three-Resistor Termination Figure 3a. Parallel Thevenin-Equivalent Termination VCC VCC R1 ZO = 50Ω VCC—2V R2 VCC = 3.3V, R1 = 130Ω, R2 = 82Ω VCC = 5V, R1 = 83Ω, R2 = 125Ω Figure 3c. Terminating Unused I/O RELATED PRODUCT AND SUPPORT DOCUMENTATION Part Number Function Data Sheet Link SY89322V 3.3V/5V Dual LVTTL/LVCMOS-to-Differential LVPECL Translator www.micrel.com/product-info/products/sy89322v.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 5 Precision Edge® SY89329V Micrel, Inc. 8 LEAD MicroLeadFrame (MLF-8) 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 6