Micrel, Inc. 3.3V DUAL TTL-to-DIFFERENTIAL PECL TRANSLATOR FEATURES ■ ■ ■ ■ ■ ■ ■ SY10ELT22L SY100ELT22L SY10ELT22L SY100ELT22L DESCRIPTION 3.3V power supply 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 SY10/100ELT22L are dual TTL-to-differential PECL translators with +3.3V power supply. Because PECL (Positive ECL) levels are used, only +3.3V and ground are required. The small outline 8-lead SOIC package and the low skew, dual gate design of the ELT22L makes it ideal for applications which require the tranlation of a clock and a data signal. The ELT22L 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 M9999-052108 [email protected] or (408) 955-1690 Function Qn Differential PECL Outputs Dn TTL Inputs VCC +3.3V Supply GND Ground Rev.: J 1 Amendment: /0 Issue Date: May 2008 SY10ELT22L SY100ELT22L Micrel, Inc. PACKAGE/ORDERING INFORMATION Ordering Information(1) Q0 1 8 VCC /Q0 2 Part Number Package Type Operating Range Package Marking Lead Finish 7 D0 SY10ELT22LZC Z8-1 Commercial HEL22L Sn-Pb Q1 3 6 D1 SY10ELT22LZCTR(2) Z8-1 Commercial HEL22L Sn-Pb /Q1 4 5 GND SY100ELT22LZC Z8-1 Commercial XEL22L Sn-Pb SY100ELT22LZCTR(2) Z8-1 Commercial XEL22L Sn-Pb SY100ELT22LZI Z8-1 Industrial XEL22L Sn-Pb SY100ELT22LZITR(2) Z8-1 Industrial XEL22L Sn-Pb SY10ELT22LZG(3) Z8-1 Industrial HEL22L with Pb-Free bar-line indicator Pb-Free NiPdAu SY10ELT22LZGTR(2, 3) Z8-1 Industrial HEL22L with Pb-Free bar-line indicator Pb-Free NiPdAu SY100ELT22LZG(3) Z8-1 Industrial XEL22L with Pb-Free bar-line indicator Pb-Free NiPdAu SY100ELT22LZGTR(2, 3) Z8-1 Industrial XEL22L with Pb-Free bar-line indicator Pb-Free NiPdAu PECL TTL 8-Pin SOIC (Z8-1) Notes: 1. Contact factory for die availability. Dice are guaranteed at TA = 25°C, DC Electricals only. 2. Tape and Reel. 3. Pb-Free package is recommended for new designs. M9999-052108 [email protected] or (408) 955-1690 2 SY10ELT22L SY100ELT22L Micrel, Inc. 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 TLEAD Lead Temperature (soldering, 20sec.) Tstore TA mA 50 100 +260 °C Storage Temperature –65 to +150 °C 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 = +3.0V to +3.8V 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 — 25 — 3 volt Power Supply Range 25 — 25 — 25 Condition mA — 10/100ELT22L Series: +3.0V to +3.8V. TTL DC ELECTRICAL CHARACTERISTICS(1) VCC = +3.0V to +3.8V TA = -40°C Symbol Parameter TA = 0°C TA = +25°C TA = +85°C Min. Max. Min. 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: M9999-052108 [email protected] or (408) 955-1690 3 volt Power Supply Range 10/100ELT22L Series: +3.0V to +3.8V. 3 IIN = –18mA SY10ELT22L SY100ELT22L Micrel, Inc. PECL DC ELECTRICAL CHARACTERISTICS(1) VCC = VCC (Min.) to VCC (Max.) TA = -40°C Symbol VOH VOL Parameter TA = 0°C Min. Typ. Max. Min. Typ. 10ELT 100ELT 2220 2220 — — 2410 2420 2280 2275 — — Output LOW Voltage(2) 10ELT 100ELT 1350 1470 — — 1650 1750 1350 1490 — — Output HIGH TA = +25°C Max. Min. TA = +85°C Typ. Max. Min. Typ. Max. 2460 2320 2420 2275 — — 2490 2420 2390 2275 — — 2580 2420 1670 1350 1680 1490 — — 1670 1680 1350 1490 — — 1705 1680 Unit Voltage(2) mV mV NOTES: 1. Parametric values specified at: 3 volt Power Supply Range 10/100ELT22L Series: +3.0V to +3.8V. 2. These values are for VCC = 3.3V. Level Specifications will vary 1:1 with VCC. AC ELECTRICAL CHARACTERISTICS(1) VCC = +3.0V to +3.8V TA = -40°C Symbol TA = 0°C TA = +25°C TA = +85°C Parameter Min. Max. Min. Max. Min. Max. Min. Max. Unit tPD 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) NOTES: 1. Parametric values specified at: 3 volt Power Supply Range 2. Guaranteed, but not tested. 3. Same transition @common VCC levels. M9999-052108 [email protected] or (408) 955-1690 10/100ELT22L Series: +3.0V to +3.8V. 4 Condition SY10ELT22L SY100ELT22L Micrel, Inc. 8-PIN SOIC .150" WIDE (Z8-1) Rev. 03 MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA TEL + 1 (408) 944-0800 FAX + 1 (408) 474-1000 WEB 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. © 2005 Micrel, Incorporated. M9999-052108 [email protected] or (408) 955-1690 5