5V/3.3V TTL-TO-DIFFERENTIAL PECL TRANSLATOR Micrel Precision Edge™ SY10ELT20V PrecisionSY100ELT20V Edge™ SY10ELT20V SY100ELT20V FEATURES ■ ■ ■ ■ ■ ■ ■ 3.3V and 5V power supply options 300ps typical propagation delay Low power Differential PECL output PNP TTL input for minimal loading Flow-through pinouts Available in 8-pin SOIC package and in die form Precision Edge™ DESCRIPTION The SY10/100ELT20V is a single TTL-to-differential PECL translator. Because PECL (Positive ECL) levels are used, either +5V or +3.3V and ground are required. The small outline 8-lead SOIC package and low skew single gate design make the ELT20V ideal for applications that require the translation of a clock or data signal where minimal space, low power, and low cost are critical. The ELT20V is available in both ECL standards: the 10ELT is compatible with positive ECL 10H logic levels, while the 100ELT is compatible with positive ECL 100K logic levels. PIN CONFIGURATION/BLOCK DIAGRAM NC 1 8 VCC TTL Q 2 7 D PECL Q 3 PIN NAMES 6 NC NC 4 5 GND Pin SOIC TOP VIEW Function Q Differential PECL Output D TTL Input VCC +5V/+3.3V Supply GND Ground Precision Edge is a trademark of Micrel, Inc. Rev.: C 1 Amendment: /0 Issue Date: June 2003 Precision Edge™ SY10ELT20V SY100ELT20V Micrel ABSOLUTE MAXIMUM RATINGS(Note 1) Symbol Paramter TRUTH TABLE Value Unit D Q Q VCC Power Supply Voltage –0.5 to +7.0 V H H L VI TTL Input Voltage –0.5 to VCC V L L H II TTL Input Current –30 to +5.0 mA Open H L IOUT PECL Output Current –Continuous –Surge mA 50 100 Tstore Storage Temperature –65 to +150 °C TA Operating Temperature –40 to +85 °C DC ELECTRICAL CHARACTERISTICS VCC = +3.3V ±10% or +5.0V ±10% TA = –40°C Symbol ICC Parameter Power Supply Current TA = 0°C TA = +25°C TA = +85°C Min. Max. Min. Max. Min. Typ. Max. Min. Max. Unit Condition — 20 — 20 — — 20 — 20 mA — TTL DC ELECTRICAL CHARACTERISTICS VCC = +3.3V ±10% or +5.0V ±10% TA = –40°C Symbol Parameter TA = 0°C TA = +25°C Min. Max. Min. Max. Min. Typ. TA = +85°C Max. Min. Max. Unit Condition VIH Input HIGH Voltage 2.0 — 2.0 — 2.0 — 2.0 — V — VIL Input LOW Voltage — 0.8 — 0.8 — 0.8 — 0.8 V — IIH Input HIGH Current — — 20 100 — — 20 100 — — 20 100 — — 20 100 µA VIN = 2.7V VIN = VCC IIL Input LOW Current — –0.2 — –0.2 — –0.2 — –0.2 mA VIN = 0.5V VIK Input Clamp Voltage — –1.2 — –1.2 — –1.2 — –1.2 V IIN = –18mA Unit Condition PECL DC ELECTRICAL CHARACTERISTICS VCC = +3.3V ±10% or +5.0V ±10% TA = –40°C Symbol VOH VOL Parameter Output HIGH TA = 0°C TA = +25°C TA = +85°C Min. Max. Min. Max. Min. Typ. Max. Min. Max. 10ELT 3920 100ELT 3915 4110 4120 3980 3975 4160 4120 4020 3975 — — 4190 4120 4090 3975 4280 4120 3350 3445 3050 3190 3370 3380 3050 3190 — — 3370 3380 3050 3190 3405 3380 Voltage(Note 2) mV Output LOW Voltage(1) 10ELT 3050 100ELT 3170 mV 2 Precision Edge™ SY10ELT20V SY100ELT20V Micrel AC ELECTRICAL CHARACTERISTICS(Note 3) VCC = +3.3V ±10% or +5.0V ±10% TA = –40°C Symbol Parameter TA = 0°C TA = +25°C TA = +85°C Min. Max. Min. Max. Min. Typ. Max. Min. Max. Unit tPLH tPHL Propagation Delay(Note 3) 100 600 100 600 100 — 600 100 600 ps 50Ω to VCC – 2.0V Condition tskpp Part-to-Part Skew(Note 4) — 500 — 500 — — 500 — 500 ps 50Ω to VCC – 2.0V fMAX Maximum Input Frequency 350 — 350 — 350 — — 350 — MHz 50Ω to VCC – 2.0V tr tf Output Rise/Fall Time (20% to 80%) 200 500 200 500 200 — 500 200 500 ps 50Ω to VCC – 2.0V Note 1. Permanent device damage may occur if 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 ABSOLUTE MAXIMUM RATlNG conditions for extended periods may affect device reliability. Note 2. These values are for VCC = 5.0V. Level Specifications will vary 1:1 with VCC. Note 3. Input Rise Time < 1.0ns. Note 4. Guaranteed by design. Not tested in production. PRODUCT ORDERING INFORMATION(NOTE 1) Ordering Code Package Type Operating Range Marking Code SY10ELT20VZI(2) Z8-1 Industrial HEL20V HEL20V SY10ELT20VZITR(2,3) Z8-1 Industrial HEL20V XEL20V SY100ELT20VZI(2) Z8-1 Industrial XEL20V XEL20V SY100ELT20VZITR(2,3) Z8-1 Industrial XEL20V SY100ELT20VXC DIE 25°C — Package Type Operating Range Marking Code SY10ELT20VZC Z8-1 Commercial HEL20V SY10ELT20VZCTR(3) Z8-1 Commercial SY100ELT20VZC Z8-1 Commercial SY100ELT20VZCTR(3) Z8-1 Commercial Ordering Code 3 Precision Edge™ SY10ELT20V SY100ELT20V Micrel TOPOGRAPHIES AND PAD COORDINATES VCC VCC (Pad 6) (Pad 7) Q (Pad 8) D (Pad 5) /Q (Pad 4) 0.850 mm NC (Pad 3) NC NC (Pad 2) (Pad 9) GND GND (Pad 1) (Pad 10) 0.850 mm Figure 1. Chip Topographies PAD COORDINATES TABLE Pad Number µm)(4) Coordinates (µ 1 CHIP INFORMATION Transistor Count: 98 619.5, –344.5 Substrate: Connect to GND 2 396.5, –344.5 Process: Bipolar 3 130.5, –344.5 4 –135.5, –344.5 5 –401.5, –344.5 6 –619.5, –344.5 7 –619.5, 344.5 8 –427.5, 344.5 9 427.5, 344.5 10 619.5, 344.5 Note 1. Contact factory for die availability. Die is guaranteed at TA = 25°C, DC electricals only. Shipped in waffle pack. Note 2. Recommended for new designs. Note 3. Tape and Reel. Note 4. Coordinates reference from the center of the die. 4 Precision Edge™ SY10ELT20V SY100ELT20V Micrel 8 LEAD SOIC .150" WIDE (Z8-1) Rev. 03 MICREL, INC. TEL 1849 FORTUNE DRIVE SAN JOSE, CA 95131 + 1 (408) 944-0800 FAX + 1 (408) 944-0970 WEB USA http://www.micrel.com The information furnished by Micrel in this datasheet 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. © 2003 Micrel, Incorporated. 5