SY10ELT22 SY100ELT22 FINAL DUAL TTL-to-DIFFERENTIAL PECL TRANSLATOR FEATURES ■ ■ ■ ■ ■ ■ DESCRIPTION 300ps typical propagation delay <100ps output-to-output skew Differential PECL outputs PNP TTL inputs for minimal loading Flow-through pinouts Available in 8-pin SOIC package The SY10/100ELT22 are dual TTL-to-differential PECL translators. Because PECL (Positive ECL) levels are used, only +5V and ground are required. The small outline 8-lead SOIC package and the low skew, dual gate design of the ELT22 makes it ideal for applications which require the tranlation of a clock and a data signal. The ELT22 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 NAMES PIN CONFIGURATION/BLOCK DIAGRAM Pin Q0 Q0 8 1 2 PECL VCC 7 D0 TTL Q1 3 6 D1 Q1 4 5 GND Function Qn Differential PECL Outputs Dn TTL Inputs VCC +5.0V Supply GND Ground SOIC TOP VIEW Rev.: G 1 Amendment: /0 Issue Date: February 2003 SY10ELT22 SY100ELT22 Micrel ABSOLUTE MAXIMUM RATINGS(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 Tamb Operating Temperature –40 to +85 °C 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. DC ELECTRICAL CHARACTERISTICS(1) VCC = VCC (Min.) to VCC (Max.) TA = -40°C Symbol ICC Parameter TA = +25°C TA = +85°C Min. Max. Min. Max. Min. Max. Min. Max. Unit Power Supply Current NOTE: 1. Parametric values specified at: TA = 0°C — 30 5 volt Power Supply Range — 30 — 100ELT22 Series: 10ELT22 Series 30 — 30 mA Condition — +4.2V to +5.5V. +4.75V to +5.5V. AC ELECTRICAL CHARACTERISTICS(1) VCC = VCC (Min.) to VCC (Max.) TA = -40°C Symbol Parameter TA = 0°C TA = +25°C TA = +85°C Min. Max. Min. Max. Min. Max. Min. Max. Unit Condition tPLH tPHL Propagation Delay to Output D, ENECL/ENTTL 100 600 100 600 100 600 100 600 ps 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 tskpp Part-to-Part Skew(2) — 500 — 500 — 500 — 500 ps 50Ω to VCC – 2.0V — 100 — 100 — 100 — 100 ps 50Ω to VCC – 2.0V tskew Within-Device Skew(2,3) NOTE: 1. Parametric values specified at: 5 volt Power Supply Range 100ELT22 Series: 10ELT22 Series 2. Guaranteed, but not tested. 3. Same transition @common VCC levels. 2 +4.2V to +5.5V. +4.75V to +5.5V. SY10ELT22 SY100ELT22 Micrel TTL DC ELECTRICAL CHARACTERISTICS(1) VCC = VCC (Min.) to VCC (Max.) TA = -40°C Symbol Parameter TA = +25°C TA = +85°C Min. Max. Min. TA = 0°C Max. Min. 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 NOTE: 1. Parametric values specified at: 5 volt Power Supply Range 100ELT22 Series: 10ELT22 Series IIN = –18mA +4.2V to +5.5V. +4.75V to +5.5V. PECL DC ELECTRICAL CHARACTERISTICS(1) VCC = VCC (Min.) to VCC (Max.) TA = -40°C Symbol VOH VOL Parameter TA = 0°C TA = +25°C TA = +85°C Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. 10ELT 3920 100ELT 3915 — — 4110 4120 3980 3975 — — 4160 4120 4020 3975 — — 4190 4120 4090 3975 — — 4280 4120 Output LOW Voltage(2) 10ELT 3050 100ELT 3170 — — 3350 3445 3050 3190 — — 3370 3380 3050 3190 — — 3370 3380 3050 3190 — — 3405 3380 Output HIGH Min. Voltage(2) NOTES: 1. Parametric values specified at: Unit mV mV 5 volt Power Supply Range 100ELT22 Series: 10ELT22 Series 2. These values are for VCC = 5.0V. Level Specifications will vary 1:1 with VCC. +4.2V to +5.5V. +4.75V to +5.5V. PRODUCT ORDERING CODE Ordering Code SY10ELT22ZC SY10ELT22ZCTR* SY100ELT22ZC SY100ELT22ZCTR* Package Type Operating Range Marking Code SY10ELT22ZI(1) Z8-1 Industrial HEL22 HEL22 SY10ELT22ZITR*(1) Z8-1 Industrial HEL22 XEL22 SY100ELT22ZI(1) Z8-1 Industrial XEL22 XEL22 SY100ELT22ZITR*(1) Z8-1 Industrial XEL22 Package Type Operating Range Marking Code Z8-1 Commercial HEL22 Z8-1 Z8-1 Z8-1 Commercial Commercial Commercial Ordering Code *Tape and Reel Note 1. Recommended for new designs. 3 SY10ELT22 SY100ELT22 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. 4